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High Torque

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High Torque
High Torque High Torque

What's the Difference between Super Torque Motors, And High Speed Motors in Airsoft?

I'm just wondering what's the difference between the two?

Thanks.

Depends on your spring and gears. For a stronger spring you need torque up gears along with a super torque motor to run the gears and pull that strong spring back. Of course I'm only talking about the motor and gears; there are many other parts that will have to be upgraded. As for High speed motors, they can be used in conjunction with a lighter spring to make the most out of it and increase the rate of fire.

logo High Torque
270904043865 0 High Torque
LOT OF 10 12V Small Electric DC Motor High Torque Powerful Brand New Wholesale
pp High Torque
   US $37.50
250984973038 0 High Torque
Screw driver set HUSKY 69 PIECE high torque
pp High Torque
   US $10.00
290663161492 0 High Torque
DEWALT DW059K 2R 1 2 inch 18V 18 Volt XRP Cordless High Torque Impact Wrench Kit
pp High Torque
   US $244.89
310376909871 0 High Torque
18 Piece 2 in 1 Design Ratchet Screw Driver Tool Kit High Torque Easy Grip
pp High Torque
   US $14.99
180808357527 0 High Torque
Traxxas 2075 High Torque Waterproof Steering Servo Slash 4x4 2wd Revo E Revo
pp High Torque
   US $13.50
150748223630 0 High Torque
High Torque 10 piece Metric T Handle Hex Key Wrench Set USED
pp High Torque
   US $10.00
250985135601 0 High Torque
Futaba S3010 High torque BB servo with horns
pp High Torque
   US $19.99
130639540759 0 High Torque
NEW 2012 Yamaha PHAZER RTX Snowmobile 4 Stroke High Torque Twin Spring Priced
pp High Torque
   US $5,350.00
120852423348 0 High Torque
Be Cool Radiators 75034 Be Cool High Torque Electric Fans
pp High Torque
   US $325.00
120852423807 0 High Torque
Be Cool Radiators 75033 Be Cool High Torque Electric Fans
pp High Torque
   US $300.00
230741294667 0 High Torque
Rc SG5010 High Speed Torque Coreless Servo For Car Helicopter Airplane Boat H309
pp High Torque
   US $9.20
300658770765 0 High Torque
Used JR SERVOS High Torque JR DS821 RC Airplane Car Helicopter
pp High Torque
   US $15.50
190634747804 0 High Torque
HARLEY CUSTOM CHOPPER BOBBER TERRY HIGH TORQUE STARTER CHROME AND POLISHED USED
pp High Torque
   US $99.00
250988186215 0 High Torque
Diameter 37mm 12V DC 60 RPM High Torque Gear Box Electric Motor
pp High Torque
   US $.99
390386733130 0 High Torque
104240 HPI Savage FLUX HP SF 50 High Torque Steering Servo
pp High Torque
   US $11.50
250988196439 0 High Torque
Diameter 25mm 12V DC 60RPM Powerful High Torque Gear Box Motor
pp High Torque
   US $.99
390386733926 0 High Torque
CEN Genesis Nemesis GST 77 High Torque Servo
pp High Torque
   US $20.50
330680308490 0 High Torque
HPI Baja 5sc SS SFL 11MG High Torque Steering Servo
pp High Torque
   US $41.00
400274693918 0 High Torque
Conair Infinity Tourmaline Ceramic Ionic Hair Dryer High Torque Motor 207P NEW
pp High Torque
   US $24.98
380408683659 0 High Torque
Craftsman 675 Torque Rating 22 in High Wheel Trimmer $48999 RETAIL
pp High Torque
   US $13.26
190636273459 0 High Torque
Rc SG5010 High Speed Torque Coreless Servo For Car Helicopter Airplane Boat M309
pp High Torque
   US $9.20
180810036563 0 High Torque
Losi Compcrawler w Novak brushless sensored Goat 3s Z9100t high torque servo
pp High Torque
   US $200.00
180810169692 0 High Torque
Digital MG995 Metal Gear RC Servo High Speed Torque
pp High Torque
   US $4.25
320841406598 0 High Torque
48v 1200w SUPER HIGH TORQUE OffRoads Electric Motor e Bike Bicycle motorized Kit
pp High Torque
   US $914.63
180810173920 0 High Torque
Digital MG996R Metal Gear RC Servo High Speed Torque RC CAR 1 8
pp High Torque
   US $5.50
370543300859 0 High Torque
SBC BBC CHEVY HIGH TORQUE MINI STARTER 3HP RED
pp High Torque
   US $74.50
320840285685 0 High Torque
Airsoft Ultra High Torque Motor SRC Short Jg Saw V2 V3
pp High Torque
   US $33.00
250987168329 0 High Torque
NSK Dental High Speed PANA MAX HANDPIECE Torque Head warranty Japan
pp High Torque
   US $75.00
190635674221 0 High Torque
HITec High Torque Servo HS 635HB
pp High Torque
   US $5.50
270904028117 0 High Torque
DAYTON 3M326A HIGH TORQUE SINGLE PHASE AC GEARMOTOR1 40 HP 41RPM
pp High Torque
   US $58.00
160727221779 0 High Torque
10 Pcs SAE T Handle Hex Wrenches Allen Key Set New Tool Standard High Torque New
pp High Torque
   US $17.25
360431055270 0 High Torque
Pneumatic 3 4Air Impact Wrench Auto Mechanic Gun 500FT LBS High Torque Power
pp High Torque
   US $64.35
160727274410 0 High Torque
48RE DODGE DIESEL TRANSMISSION REBUILT HIGH TORQUE PERFOFMANCE UPGRADES
pp High Torque
   US $2,640.00
290665135498 0 High Torque
Pro 1 2 Dr Thin Wall Torque Socket Magnetic Metric Set High Quality No Scratch
pp High Torque
   US $47.99
150749133080 0 High Torque
NSK Dental High Speed PANA MAX HANDPIECE Torque Head warranty Japan NIB
pp High Torque
   US $198.00
280818175126 0 High Torque
CRAFTSMAN SPEED LOK 7 PC HIGH TORQUE HANDLE SET
pp High Torque
   US $7.99
150751895479 0 High Torque
Rc SG5010 High Speed Torque Coreless Servo For Car Helicopter Airplane Boat B309
pp High Torque
   US $9.20
110819469690 0 High Torque
TRAXXAS 2075 WATERPROOF HIGH TORQUE SERVO SUMMIT NEW
pp High Torque
   US $11.50
110819469726 0 High Torque
TRAXXAS 2075 WATERPROOF DIGITAL HIGH TORQUE SERVO SLASH
pp High Torque
   US $2.25
110819469747 0 High Torque
TRAXXAS 2070 DIGITAL HIGH TORQUE STEERING SERVO T MAXX
pp High Torque
   US $5.50
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TV HIGH TORQUE Válvula termostática.

Motor Cylinder

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Motor Cylinder
Motor Cylinder Motor Cylinder

How do I know which type of cylinder heads are on my motor?

There are casting numbers on them, but what do i do with them? It says 6272990? The motor says 140154459 what type of motor is it also? i know its a 454ci GM Motor, but i want to be sure of the exact specifications. Thank you.

These should be rectangular port open chamber heads with 118CC chambers. 2.19 intake and 1.88 exhaust valves. Original on 425HP 427's starting in 1971. Good heads for stock cast iron heads.

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10P FB21 BREMBO CYLINDER BRAKE FOIL STICKER EMBOSS COMPUTER CAR MOTOR BIKES
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10P FB20 BREMBO CYLINDER BRAKE RED FOIL STICKER EMBOSS COMPUTER CAR MOTOR BIKES
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Kohler Courage 20 Complete Twin Cylinder Vertical Shaft Lawn Mower Engine Motor
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180806079810 0 Motor Cylinder
offenhauser intake for 6 cylinder motor
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mercury 35 hp 2cylinder motor stator plus rectifier from running motor
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01 02 ELANTRA ENGINE MOTOR 20L 4 CYLINDER VIN D 8TH DIGIT
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Diesel Engine Cylinder Compression Tester Kit Gauge Auto Motor Test
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08 09 10 FORD MUSTANG GT ENGINE MOTOR 46L V8 8 CYLINDER 70K 46 SOHC 300HP
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   US $2,099.00
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6 Cylinder Chevy Nova Motor
pp Motor Cylinder
   US $330.00
110817821898 0 Motor Cylinder
1994 94 Kawasaki Cylinder Jug Head Engine Motor 112
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   US $50.00
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BuickChevyPontiac 31L reconditioned cylinder heads
pp Motor Cylinder
   US $250.00
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X5025 82 CFM 115 PSI TWIN CYLINDER AIR COMPRESSOR PUMP For 2HP MOTOR
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   US $99.99
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X5026 112 CFM 120 PSI TWIN CYLINDER AIR COMPRESSOR PUMP 3HP MOTOR V BELT
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X5027 175 CFM 145 PSI TWIN CYLINDER AIR COMPRESSOR V PUMP 5HP to 55 HP MOTOR
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   US $179.99
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2000 Arctic Cat ZL 500 Z ZR ZL500 EFI Twin Cylinder Motor Engine Runs Great
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   US $599.99
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145 PSI TWIN CYLINDER AIR COMPRESSOR PUMP 55 HP MOTOR
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   US $209.99
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YAMAHA VMAX 600 500 CDI BOX ECU IGNITION V max LE 700 sx Phazer XT 94 95 1996
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   US $45.00
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1995 YAMAHA VMAX 600 motor engine SNOWMOBILE 500 V max LE 700 sx Phazer XT 94 95
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   US $450.00
300657951654 0 Motor Cylinder
Original Delco Remy starter motor for 56 63 Rambler 6 cylinder remanufactured
pp Motor Cylinder
   US $19.80
200707497997 0 Motor Cylinder
Vintage Evinrude 30 horse 2 cylinder outboard motor Runs great 1950s
pp Motor Cylinder
   US $122.50
310376572585 0 Motor Cylinder
2003 Polaris XC SP 600 Motor Used Liberty Power Valve Twin Cylinders Stock Edge
pp Motor Cylinder
   US $699.99
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yamaha yz80 yz 80 engine motor cylinder head oem parts
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   US $28.00
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yamaha yz85 yz 85 engine motor cylinder head oem parts
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yamaha yz85 yz 85 engine motor cylinder oem parts project bike
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   US $45.00
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kawasaki kx100 kx85 kx 100 85 engine motor cylinder oem parts power valves
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   US $55.00
140693228641 0 Motor Cylinder
vintage snowmobile 160 hirth 372cc single cylinder motor head NOS
pp Motor Cylinder
   US $14.99
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Original Wurlitzer 1015 Color Cylinder Motor
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   US $9.99
230739444645 0 Motor Cylinder
honda cr80 cr 80 engine motor cylinder head oem part cr85 85
pp Motor Cylinder
   US $55.00
220944857660 0 Motor Cylinder
1996 YAMAHA VMAX 600 PRIMARY CLUTCH SNOWMOBILE 500 V max LE sx Phazer XT 94 95
pp Motor Cylinder
   US $100.00
320838367835 0 Motor Cylinder
X5026 112 CFM 120 PSI TWIN CYLINDER AIR COMPRESSOR PUMP For 3HP MOTOR
pp Motor Cylinder
   US $95.95
220944863100 0 Motor Cylinder
1996 YAMAHA VMAX 600 500 RECOIL PULL START V max LE 700 sx Phazer XT 94 95 ROPE
pp Motor Cylinder
   US $39.00
320838405911 0 Motor Cylinder
140PSI AIR COMPRESSOR PUMP 2HP MOTOR DUAL CYLINDER TWIN PISTION PUMP
pp Motor Cylinder
   US $99.90
130639774113 0 Motor Cylinder
Mitsubishi STARION Chrysler CONQUEST G54B motor 26L engine 4 cylinder
pp Motor Cylinder
   US $500.00
190636291834 0 Motor Cylinder
96 00 HONDA CIVIC EK H22 H23 MOTOR MOUNT D SERIES SOHC SWAP JDM
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   US $99.99
330680460674 0 Motor Cylinder
Cadillac CTS SRX Brake Master Cylinder NEW OEM 19209229 N R
pp Motor Cylinder
   US $30.00
120852695231 0 Motor Cylinder
Harley aermacchi sprint cylinder head cylinderhead valve cover engine motor part
pp Motor Cylinder
   US $49.99
330680529340 0 Motor Cylinder
1979 VESPA PIAGGIO MOPED ENGINE CYLINDER HEAD MOTOR 79
pp Motor Cylinder
   US $24.95
180812009742 0 Motor Cylinder
1999 2001 GM 34L 31L CYLINDER HEADS SET OF 2 COMLETE BOLT ON READYNO RESERVE
pp Motor Cylinder
   US $80.00
260946880900 0 Motor Cylinder
YAMAHA YZ85 COMPLETE MOTOR CRANKCASE CYLINDER CRANKSHAFT
pp Motor Cylinder
   US $199.99
370581929066 0 Motor Cylinder
Ford Custom 300 1957 Ford Custom 300 2 Door Sedan Rebuilt 6 Cylinder Motor Rare Bodystyle
pp Motor Cylinder
   US $7,800.00
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DOHC 4 cylinder engine Video - Part 1

Written by admin

June 11th, 2010 at 5:39 pm

Car Motor

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Car Motor
Car Motor 3 Car Motor

Muscle Car Motors

Hi performance cars are built on a new engine case unless you request a rebuilt one. And are the result of careful parts matching, and the correct combination of parts is critical. And are increased horsepower resulting from alteration to cubic inch displacement, camshafts, carburettor, or exhaust system, and that produced by the automobile manufactures. Muscle Cars are hard on clutches, the lockout clutch will eliminate excessive slipping and improve your clutch life up to 5 times longer.

One of the hottest products to emerge in recent years are steel head gaskets. This is how all engines are broken in, and today can be considered since they pull more power out then there predecessors ever did. To put into categories, most stock/street cars are 80% 85% efficient, and race motors are 90% 95%. Reliable engines are dependent upon high quality components and sub components.

RHINO Engines are built with the highest quality parts to give you the best performance and the maximum horsepower. Shipping methods are via truck freight anywhere within the contiguous 48 U. Muscle Cars are not indestructible and can break if not enough attention is given to the proper setting and use. Some motors are very susceptible to knocking because they compress the fuel/air mixture more.

All are built to strict specifications using the most precise measuring tools and devices. Industrial and performance motors are often built with larger clearances and will use more oil. All of our motors are run on our dynamometer to ensure maximum performance is realized. Stock engines are warrantied for 24 months 24,000 miles; muscle cars are warrantied for 6 months 6,000 miles. Today, performance engines are all aluminum, but the cylinder bore evenly coated with a few microns of a ceramic material such as silicon carbide.

Most all motors are high compression, but not verse verso. Ken says that most of these engines are using the valve. And are the most powerful in their class and will easily handle most demanding hills. The days of short life on high performance motors are long gone.

Built on a new motor case unless you request a rebuilt one. And are the result of careful parts matching, and the correct combination of parts is critical. And are by nature not that quiet. And are those increased horsepower resulting from alteration to cubic inch displacement, camshafts, carburetor, or exhaust system, and that produced by the automobile manufactures. Are hard on clutches, the lockout clutch will eliminate excessive slipping and improve your clutch life up to 5 times longer.

About the Author

Ronald Firquain is a writer, marketer, entrepreneur, webmaster and has 16 years of computer knowledge. You can download ebooks for making money online, building a website, play golf, guitar and more. For more information goto: eBooks Mall

What is the difference between a boat inboard motor and a car motor?

I need to replace the motor in my boat and I have a Ford 300 6 cyl. engine in my back yard. Can i use it for the boat? What needs to be modified?

No body mentioned the marine head gasket yet. Otherwise you get about a year of service in salt water and it fails. Also some engines had a steel backed seal in the water pump which went away even faster. Good idea to get a marine/ RV cam for the engine to recover some low end torque. That 300 was a heavy S.O.B. so no worries about running a raw water coolant system. The exhaust manifold price will make you gasp. You might change out the fuel pump for a marine style which funnels any fuel from a broken diaphramn into the carb instead of the bilge. While the head is off -good time to check the valves, and look down to the timing chain set and see if it is nylon coated or a real chain on double rollers.
The carb is another issue. The marine carb floods back into the carb where the automotive pours fuel on to the manifold.
Last but not least is the vent on the starter must have some sort of fire screen in it.
Hope this isn't discouraging. Best bet is to find a rust bucket in a marine grave yard and scaveneng the bits.

logo Car Motor
320839694261 0 Car Motor
Scarce 1911 Motor Car Diving Licence
pp Car Motor
   US $3.14
290664504442 0 Car Motor
X mods stage 2 motor upgrade kit for gen 1 cars
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   US $9.99
130637339454 0 Car Motor
Regd No 632818 Star Motor Co Enamel Badge Star Cars Wolverhamptom Fattorini Bham
pp Car Motor
   US $42.64
140695715495 0 Car Motor
American Motor Co AMC AMX 390 GT Sport Car Metal Watch
pp Car Motor
   US $.99
140695721755 0 Car Motor
American Motor Co AMC Hornet Compact Car Metal Watch
pp Car Motor
   US $.99
260946074687 0 Car Motor
Haynes General Motors GM A Cars chevypontiacoldsmobilebuick1982 thru 1990
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   US $10.00
160728874422 0 Car Motor
Jensen Motors Car British Classic Sport Metal Watch
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   US $.99
200707676654 0 Car Motor
Ford F 350 DIESEL 73 INTERNATIONAL MOTOR DUALLY 46 K ALSO COMES WITH CAR TRAILER
   US $11,101.00
280817358518 0 Car Motor
1968 American Motors car brochure
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   US $15.99
170774124414 0 Car Motor
BENDIX MAGNETO 110 255 OFFENHAUSER MOTORS MIDGET SPRINT CAR INDY ROADSTER
pp Car Motor
   US $499.00
160726453539 0 Car Motor
BENDIX magneto 110 255 OFFENHAUSER MOTORS MIDGET SPRINT CAR INDY ROADSTER
pp Car Motor
   US $499.00
170776447198 0 Car Motor
Morris Motor Minor Mini Compact Car Sport Metal Watch
pp Car Motor
   US $.99
130642417336 0 Car Motor
Rover Company Leyland Motor British Car Bicycle 75 Emblem Sport Metal Watch
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   US $.99
260946088778 0 Car Motor
OEM window sticker Bentley Motor Cars Rolls Royce 1995 Continental R $28940000
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   US $29.95
140695764287 0 Car Motor
Ford Racing Performance Car Part FPR Division Motor Sport Metal Watch
pp Car Motor
   US $.99
150750960292 0 Car Motor
Stoddard Dayton Motor Classic Lux Car Logo Metal Watch
pp Car Motor
   US $.99
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Moon Motor Car Classic Automobile Sport Metal Watch
pp Car Motor
   US $.99
260947373820 0 Car Motor
Professor Motors Slot Car Controller with polarity switch
pp Car Motor
   US $30.00
320839744131 0 Car Motor
National Motor Museum Mint Towtruck and Fire Chief Car
pp Car Motor
   US $15.99
300657727650 0 Car Motor
THE DUTCH MOTOR CAR DAF 600 SPECIFICATION MANUAL
pp Car Motor
   US $5.99
190634523589 0 Car Motor
PACKARD MOTOR CAR COMPANY1953 STOCK CERTIFICATE
pp Car Motor
   US $21.20
230740033413 0 Car Motor
VINTAGE AUTO TIME MOTOR CAR SHAPE QUARTZ UNISEX WATCH
pp Car Motor
   US $9.99
130642442083 0 Car Motor
Red Meta Autol Transformer Car Motor Decal sticker B
pp Car Motor
   US $.99
250987806671 0 Car Motor
Shark Fin Shape Car Motor Wind Power Decor LED Light
pp Car Motor
   US $1.00
180810940731 0 Car Motor
Hudson Motor Company American Classic Car 40 Years Sport Metal Watch
pp Car Motor
   US $.99
170776478921 0 Car Motor
Ford Falcon Spirit Motor Logo Car Sport Metal Watch
pp Car Motor
   US $.99
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REO Motor Car Company Michigan Classic Metal Watch
pp Car Motor
   US $.99
170776481356 0 Car Motor
Hudson Motor Nash Company Classic Car Logo Metal Watch
pp Car Motor
   US $.99
110818624932 0 Car Motor
Original 1914 Photograph Vist to Cheddar in early Charabanc Motor Car
pp Car Motor
   US $7.82
270904078416 0 Car Motor
CORVETTE CHEVY PONTIAC CAR HORN hi note 60S
pp Car Motor
   US $25.00
220944502851 0 Car Motor
TYLER MOTOR CO TYLER TEXAS FORD V8 EMBLEM FROM GRANDPAS OLD CAR SMITH COUNTY
pp Car Motor
   US $29.99
220944503982 0 Car Motor
95X1PCPOKEMON DECALS STICKER CUT OUT WALL COMPUTER TRUCK CAR MOTOR BIKE
pp Car Motor
   US $1.50
220944504240 0 Car Motor
60X2P ROCKSTAR YAMAHA DECALS STICKER CUT OUT WALL COMPUTER ATV CAR MOTOR BIKE
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   US $1.50
220944504552 0 Car Motor
95X1PC GARFIELD CARTOON STICKER CUT OUT WALL COMPUTER TRUCK CAR MOTOR BIKE
pp Car Motor
   US $1.50
220944505172 0 Car Motor
60X2P CHEVROLET CHEVY WING STICKER CUT OUT COMPUTER TRUCK ATV CAR MOTOR BIKE
pp Car Motor
   US $1.50
220944505457 0 Car Motor
45X2C JEEP DECALS STICKER CUT OUT WALL COMPUTER TRUCK CAR HELMET MOTOR BIKE
pp Car Motor
   US $1.50
220944505607 0 Car Motor
60X1PCKAWASAKI ON SKULL HEAD STICKER CUT OUT COMPUTER TRUCK CAR MOTOR BIKE
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   US $1.50
220944505835 0 Car Motor
95X2P TOYOTA COROLLA CLUB STICKER CUT OUT COMPUTER ATV CAR TRUCK MOTOR BIKE
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   US $1.50
220944514338 0 Car Motor
West Palm Beach FL 1950s postcard Southland Motor Lodge 1950s cars US 1
pp Car Motor
   US $1.36
190636033036 0 Car Motor
HOBBYWING Xerun Ezrun Brushless Motor Speed Controller CAR ESC Program Card
pp Car Motor
   US $.99
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OCRS Sprint Car Heat Race - Outlaw Motor Speedway 06/25/2010

Written by admin

November 24th, 2009 at 12:50 am

Motor Hoist

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Motor Hoist
Motor Hoist Motor Hoist

how would u make a small model hoist using a pulley system?

i have 2 small dc motors..PLEASE HELP!

unless it on a jeep i cant help you

logo Motor Hoist
180791705946 0 Motor Hoist
1919 NOVO ENGINE HOIST MACHINE MOTOR LANSING MICHIGAN
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370526227791 0 Motor Hoist
BBA 138 Worm Drive Hoist Motor Brake Assembly NEW
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   US $281.95
160446015638 0 Motor Hoist
Sew Eurodrive 5 hp Hoist Lift Motor w Brake MOT2271
pp Motor Hoist
   US $260.00
110805319166 0 Motor Hoist
Cadillac Chevy GMC 22 in Spare Wheel Hoist OEM Factory Part No 19158309
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   US $19.99
130614539420 0 Motor Hoist
CM 6325 Trolley Hoist Motor Brake
pp Motor Hoist
   US $255.00
220928477455 0 Motor Hoist
BREMAS BOAT LIFT HOIST MOTOR MAINTAIN SWITCH w GFI and WIRING CABLES
pp Motor Hoist
   US $89.99
350529230606 0 Motor Hoist
Chester Rail Guide Motorized Hoist Trolley
pp Motor Hoist
   US $175.00
250711419948 0 Motor Hoist
1 TON CRANE SATURN CABLE HOIST W MOTORIZED TROLLEY 575V EXCELLENT CONDITION
pp Motor Hoist
   US $1,699.00
230685162265 0 Motor Hoist
Spare Tire Mounting Hoist 1999 2000 01 02 03 Windstar
pp Motor Hoist
   US $88.44
330625022640 0 Motor Hoist
Spare Tire Mounting Hoist Ford 99 00 01 02 03 04 05 06 07 F250 F350 F450
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   US $111.88
370580686788 0 Motor Hoist
CHA Industries MH 500 Bell Jar Motorized Hoist
pp Motor Hoist
   US $2,500.00
390314507444 0 Motor Hoist
440LB ELECTRIC MOTOR OVERHEAD GARAGE HOIST CRANE LIFT
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250287598900 0 Motor Hoist
DEMAG KBA125B4 CREEP HOIST MOTOR 1715RPM 230 460V NEW
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   US $1,800.00
330670074287 0 Motor Hoist
Air Motor Vane Set For Atlas Copco LLA Yale ACL and Coffing AC Air Hoists New
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   US $119.00
110774038018 0 Motor Hoist
Rebuilt PH Crane Hoist Trolley Multispeed AC Motor 2 Speed DF160LKED F234760
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   US $1,495.00
110806783283 0 Motor Hoist
Blue Bird Engine Hoist Diesel Motor Equipment Lift Port
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   US $1,650.00
140661992177 0 Motor Hoist
Yale Lift Tech 1 2 Hp Hoist Trolley Motor Inverter Duty Part 328795 32
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   US $100.00
160715490692 0 Motor Hoist
CSI 66902 Engine Lifting Chain MOTOR LIFT LIFTING HOIST SLING UNIVERSAL CHAIN
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   US $20.25
330671096991 0 Motor Hoist
5HP 3 POLE REVERSING CONTACTOR SQUARE D LC2 K09107 phase AC motor hoist control
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   US $49.00
200699048260 0 Motor Hoist
Komori Feeder Pile Hoist Motor TMFBG 2 12 55 134 Part 244 1108 004
pp Motor Hoist
   US $1,795.00
160547293718 0 Motor Hoist
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Pt. 1: How to Install a Chevy 350 in a Ford Thunderbird : How to Attach an Engine to an Engine Hoist

Torque Angle

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Torque Angle
Torque Angle Torque Angle

Dynamic Analysis of Stepper Motor Mechanism

A force of one pound will accelerate a mass of one slug at one foot per second squared. The same relationship holds between the force, mass, time and distance units of the other measurement systems. Most people prefer to measure angles in degrees, and the common engineering practice of specifying mass in pounds or force in kilograms will not yield correct results in the formulas given here! Care must be taken to convert such irregular units to one of the standard systems outlined above before applying the formulas given here!

 

Statics

For a motor that turns S radians per step, the plot of torque versus angular position for the rotor relative to some initial equilibrium position will generally approximate a sinusoid. The actual shape of the curve depends on the pole geometry of both rotor and stator, and neither this curve nor the geometry information is given in the motor data sheets I've seen! For permanent magnet and hybrid motors, the actual curve usually looks sinusoidal, but looks can be misleading. For variable reluctance motors, the curve rarely even looks sinusoidal; trapezoidal and even assymetrical sawtooth curves are not uncommon.

 

For a three-winding variable reluctance or permanent magnet motors with S radians per step, the period of the torque versus position curve will be 3S; for a 5-phase permanent magnet motor, the period will be 5S. For a two-winding permanent magnet or hybrid motor, the most common type, the period will be 4S, as illustrated in Figure 2.1:

 

Figure 2.1

Again, for an ideal 2 winding permanent magnet motor, this can be mathematically expressed as:

T = -h sin( ((/2) / S)  )

Where:

T -- torque

h -- holding torque

S -- step angle, in radians

 = shaft angle, in radians

But remember, subtle departures from the ideal sinusoid described here are very common.

The single-winding holding torque of a stepping motor is the peak value of the torque versus position curve when the maximum allowed current is flowing through one motor winding. If you attempt to apply a torque greater than this to the motor rotor while maintaining power to one winding, it will rotate freely.

 

It is sometimes useful to distinguish between the electrical shaft angle and the mechanical shaft angle. In the mechanical frame of reference, 2 radians is defined as one full revolution. In the electrical frame of reference, a revolution is defined as one period of the torque versus shaft angle curve. Throughout this tutorial,  refers to the mechanical shaft angle, and ((/2)/S) gives the electrical angle for a motor with 4 steps per cycle of the torque curve.

 

Assuming that the torque versus angular position curve is a good approximation of a sinusoid, as long as the torque remains below the holding torque of the motor, the rotor will remain within 1/4 period of the equilibrium position. For a two-winding permanent magnet or hybrid motor, this means the rotor will remain within one step of the equilibrium position.

 

With no power to any of the motor windings, the torque does not always fall to zero! In variable reluctance stepping motors, residual magnetization in the magnetic circuits of the motor may lead to a small residual torque, and in permanent magnet and hybrid stepping motors, the combination of pole geometry and the permanently magnetized rotor may lead to significant torque with no applied power.

 

The residual torque in a permanent magnet or hybrid stepping motor is frequently referred to as the cogging torque or detent torque of the motor because a naive observer will frequently guess that there is a detent mechanism of some kind inside the motor. The most common motor designs yield a detent torque that varies sinusoidally with rotor angle, with an equilibrium position at every step and an amplitude of roughly 10% of the rated holding torque of the motor, but a quick survey of motors from one manufacturer (Phytron) shows values as high as 23% for one very small motor to a low of 2.6% for one mid-sized motor.

 

 

Half-Stepping and Micro stepping

 

So long as no part of the magnetic circuit saturates, powering two motor windings simultaneously will produce a torque versus position curve that is the sum of the torque versus position curves for the two motor windings taken in isolation. For a two-winding permanent magnet or hybrid motor, the two curves will be S radians out of phase, and if the currents in the two windings are equal, the peaks and valleys of the sum will be displaced S/2 radians from the peaks of the original curves, as shown in Figure 2.2:

 

Figure 2.2

This is the basis of half-stepping. The two-winding holding torque is the peak of the composite torque curve when two windings are carrying their maximum rated current. For common two-winding permanent magnet or hybrid stepping motors, the two-winding holding torque will be:

h2 = 20.5 h1

where:

h1 -- single-winding holding torque

h2 -- two-winding holding torque

 

This assumes that no part of the magnetic circuit is saturated and that the torque versus position curve for each winding is an ideal sinusoid.

 

Most permanent-magnet and variable-reluctance stepping motor data sheets quote the two-winding holding torque and not the single-winding figure; in part, this is because it is larger, and in part, it is because the most common full-step controllers always apply power to two windings at once.

 

If any part of the motor's magnetic circuits is saturated, the two torque curves will not add linearly. As a result, the composite torque will be less than the sum of the component torques and the equilibrium position of the composite may not be exactly S/2 radians from the equilibria of the original.

 

Microstepping allows even smaller steps by using different currents through the two motor windings, as shown in Figure 2.3:

 

Figure 2.3

For a two-winding variable reluctance or permanent magnet motor, assuming nonsaturating magnetic circuits, and assuming perfectly sinusoidal torque versus position curves for each motor winding, the following formula gives the key characteristics of the composite torque curve:

h = ( a2 + b2 )0.5

x = ( S / (/2) ) arctan( b / a )

Where:

a -- torque applied by winding with equilibrium at 0 radians.

b -- torque applied by winding with equilibrium at S radians.

h -- holding torque of composite.

x -- equilibrium position, in radians.

S -- step angle, in radians.

 

In the absence of saturation, the torques a and b are directly proportional to the currents through the corresponding windings. It is quite common to work with normalized currents and torques, so that the single-winding holding torque or the maximum current allowed in one motor winding is 1.0.

 

Friction and the Dead Zone

 

The torque versus position curve shown in Figure 2.1 does not take into account the torque the motor must exert to overcome friction! Note that frictional forces may be divided into two large categories, static or sliding friction, which requires a constant torque to overcome, regardless of velocity, and dynamic friction or viscous drag, which offers a resistance that varies with velocity. Here, we are concerned with the impact of static friction. Suppose the torque needed to overcome the static friction on the driven system is 1/2 the peak torque of the motor, as illustrated in Figure 2.4.

 

Figure 2.4

The dotted lines in Figure 2.4 show the torque needed to overcome friction; only that part of the torque curve outside the dotted lines is available to move the rotor. The curve showing the available torque as a function of shaft angle is the difference between these curves, as shown in Figure 2.5:

Figure 2.5

Note that the consequences of static friction are twofold. First, the total torque available to move the load is reduced, and second, there is a dead zone about each of the equilibria of the ideal motor. If the motor rotor is positioned anywhere within the dead zone for the current equilibrium position, the frictional torque will exceed the torque applied by the motor windings, and the rotor will not move. Assuming an ideal sinusoidal torque versus position curve in the absence of friction, the angular width of these dead zones will be:

d = 2 ( S / (/2) ) arcsin( f / h ) = ( S / (/4) ) arcsin( f / h )

where:

d -- width of dead zone, in radians

S -- step angle, in radians

f -- torque needed to overcome static friction

h -- holding torque

 

The important thing to note about the dead zone is that it limits the ultimate positioning accuracy! For the example, where the static friction is 1/2 the peak torque, a 90° per step motor will have dead-zones 60° wide! That means that successive steps may be as large as 150° and as small as 30°, depending on where in the dead zone the rotor stops after each step!

 

The presence of a dead zone has a significant impact on the utility of microstepping! If the dead zone is x° wide, then microstepping with a step size smaller than x° may not move the rotor at all. Thus, for systems intended to use high resolution microstepping, it is very important to minimize static friction.

 

Dynamics

Each time you step the motor, you electronically move the equilibrium position S radians. This moves the entire curve illustrated in Figure 2.1 a distance of S radians, as shown in Figure 2.6:

 

Figure 2.6

The first thing to note about the process of taking one step is that the maximum available torque is at a minimum when the rotor is halfway from one step to the next. This minimum determines the running torque, the maximum torque the motor can drive as it steps slowly forward. For common two-winding permanent magnet motors with ideal sinusoidal torque versus position curves and holding torque h, this will be h/(20.5). If the motor is stepped by powering two windings at a time, the running torque of an ideal two-winding permanent magnet motor will be the same as the single-winding holding torque.

It shoud be noted that at higher stepping speeds, the running torque is sometimes defined as the pull-out torque. That is, it is the maximum frictional torque the motor can overcome on a rotating load before the load is pulled out of step by the friction. Some motor data sheets define a second torque figure, the pull-in torque. This is the maximum frictional torque that the motor can overcome to accelerate a stopped load to synchronous speed. The pull-in torques documented on stepping motor data sheets are of questionable value because the pull-in torque depends on the moment of inertia of the load used when they were measured, and few motor data sheets document this!

 

In practice, there is always some friction, so after the equilibrium position moves one step, the rotor is likely to oscillate briefly about the new equilibrium position. The resulting trajectory may resemble the one shown in Figure 2.7:

 

 

 

 

Figure 2.7

 

Here, the trajectory of the equilibrium position is shown as a dotted line, while the solid curve shows the trajectory of the motor rotor.

 

Resonance

 

The resonant frequency of the motor rotor depends on the amplitude of the oscillation; but as the amplitude decreases, the resonant frequency rises to a well-defined small-amplitude frequency. This frequency depends on the step angle and on the ratio of the holding torque to the moment of inertia of the rotor. Either a higher torque or a lower moment will increase the frequency!

 

Formally, the small-amplitude resonance can be computed as follows: First, recall Newton's law for angular acceleration:

 

T = µ A

Where:

T -- torque applied to rotor

µ -- moment of inertia of rotor and load

A -- angular acceleration, in radians per second per second

We assume that, for small amplitudes, the torque on the rotor can be approximated as a linear function of the displacement from the equilibrium position. Therefore, Hooke's law applies:

T = -k 

where:

k -- the "spring constant" of the system, in torque units per radian

 -- angular position of rotor, in radians

We can equate the two formulas for the torque to get:

µ A = -k 

Note that acceleration is the second derivitive of position with respect to time:

A = d2/dt2

so we can rewrite this the above in differential equation form:

d2/dt2 = -(k/µ) 

To solve this, recall that, for:

f( t ) = a sin bt

The derivitives are:

df( t )/dt = ab cos bt

d2f( t )/dt2 = -ab2 sin bt = -b2 f(t)

Note that, throughout this discussion, we assumed that the rotor is resonating. Therefore, it has an equation of motion something like:

 = a sin (2 f t)

a = angular amplitude of resonance

f = resonant frequency

This is an admissable solution to the above differential equation if we agree that:

b = 2 f

b2 = k/µ

Solving for the resonant frequency f as a function of k and µ, we get:

f = ( k/µ )0.5 / 2

 

It is crucial to note that it is the moment of inertia of the rotor plus any coupled load that matters. The moment of the rotor, in isolation, is irrelevant! Some motor data sheets include information on resonance, but if any load is coupled to the rotor, the resonant frequency will change!

In practice, this oscillation can cause significant problems when the stepping rate is anywhere near a resonant frequency of the system; the result frequently appears as random and uncontrollable motion.

 

Resonance and the Ideal Motor

 

Up to this point, we have dealt only with the small-angle spring constant k for the system. This can be measured experimentally, but if the motor's torque versus position curve is sinusoidal, it is also a simple function of the motor's holding torque. Recall that:

 

T = -h sin( ((/2)/S)  )

The small angle spring constant k is the negative derivitive of T at the origin.

k = -dT / d = - (- h ((/2)/S) cos( 0 ) ) = (/2)(h / S)

Substituting this into the formula for frequency, we get:

f = ( (/2)(h / S) / µ )0.5 / 2 = ( h / ( 8 µ S ) )0.5

Given that the holding torque and resonant frequency of the system are easily measured, the easiest way to determine the moment of inertia of the moving parts in a system driven by a stepping motor is indirectly from the above relationship!

µ = h / ( 8 f2 S )

For practical purposes, it is usually not the torque or the moment of inertia that matters, but rather, the maximum sustainable acceleration that matters! Conveniently, this is a simple function of the resonant frequency! Starting with the Newton's law for angular acceleration:

A = T / µ

We can substitute the above formula for the moment of inertia as a function of resonant frequency, and then substitute the maximum sustainable running torque as a function of the holding torque to get:

A = ( h / ( 20.5 ) ) / ( h / ( 8 f2 S ) ) = 8 S f2 / (20.5)

Measuring acceleration in steps per second squared instead of in radians per second squared, this simplifies to:

Asteps = A / S = 8 f2 / (20.5)

Thus, for an ideal motor with a sinusoidal torque versus rotor position function, the maximum acceleration in steps per second squared is a trivial function of the resonant frequency of the motor and rigidly coupled load!

For a two-winding permanent-magnet or variable-reluctance motor, with an ideal sinusoidal torque-versus-position characteristic, the two-winding holding torque is a simple function of the single-winding holding torque:

 

h2 = 20.5 h1

Where:

h1 -- single-winding holding torque

h2 -- two-winding holding torque

Substituting this into the formula for resonant frequency, we can find the ratios of the resonant frequencies in these two operating modes:

f1 = ( h1 / ... )0.5

f2 = ( h2 / ... )0.5 = ( 20.5 h1 / ... )0.5 = 20.25 ( h1 / ... )0.5 = 20.25 f1 = 1.189... f1

This relationship only holds if the torque provided by the motor does not vary appreciably as the stepping rate varies between these two frequencies.

In general, as will be discussed later, the available torque will tend to remain relatively constant up until some cutoff stepping rate, and then it will fall. Therefore, this relationship only holds if the resonant frequencies are below this cutoff stepping rate. At stepping rates above the cutoff rate, the two frequencies will be closer to each other!

 

 

Living with Resonance

 

If a rigidly mounted stepping motor is rigidly coupled to a frictionless load and then stepped at a frequency near the resonant frequency, energy will be pumped into the resonant system, and the result of this is that the motor will literally lose control. There are three basic ways to deal with this problem:

 

Controlling resonance in the mechanism

 

Use of elastomeric motor mounts or elastomeric couplings between motor and load can drain energy out of the resonant system, preventing energy from accumulating to the extent that it allows the motor rotor to escape from control. Or, viscous damping can be used. Here, the damping will not only draw energy out of the resonant modes of the system, but it will also subtract from the total torque available at higher speeds. Magnetic eddy current damping is equivalent to viscous damping for our purposes.

 

Figure 2.8 illustrates the use of elastomeric couplings and viscous damping in two typical stepping motor applications, one using a lead screw to drive a load, and the other using a tendon drive:

 

Figure 2.8

In Figure 2.8, elastomeric moter mounts are shown at a and elastomeric couplings between the motor and load are shown at b and c. The end bearing for the lead screw or tendon, at d, offers an opportunity for viscous damping, as do the ways on which the load slides, at e. Even the friction found in sealed ball bearings or Teflon on steel ways can provide enough damping to prevent resonance problems.

 

Controlling resonance in the low-level drive circuitry

 

A resonating motor rotor will induce an alternating current voltage in the motor windings. If some motor winding is not currently being driven, shorting this winding will impose a drag on the motor rotor that is exactly equivalent to using a magnetic eddy current damper.

 

If some motor winding is currently being driven, the AC voltage induced by the resonance will tend to modulate the current through the winding. Clamping the motor current with an external inductor will counteract the resonance. Schemes based on this idea are incorporated into some of the drive circuits illustrated in later sections of this tutorial.

 

Controlling resonance in the high-level control system

 

The high level control system can avoid driving the motor at known resonant frequencies, accelerating and decelerating through these frequencies and never attempting sustained rotation at these speeds.

 

Recall that the resonant frequency of a motor in half-stepped mode will vary by up to 20% from one half-step to the next. As a result, half-stepping pumps energy into the resonant system less efficiently than full stepping. Furthermore, when operating near these resonant frequencies, the motor control system may preferentially use only the two-winding half steps when operating near the single-winding resonant frequency, and only the single-winding half steps when operating near the two-winding resonant frequency. Figure 2.9 illustrates this:

 

Figure 2.9

 

The darkened curve in Figure 2.9 shows the operating torque achieved by a simple control scheme that delivers useful torque over a wide range of speeds despite the fact that the available torque drops to zero at each resonance in the system. This solution is particularly effective if the resonant frequencies are sharply defined and well separated. This will be the case in minimally damped systems operating well below the cutoff speed defined in the next section.

 

Torque versus Speed

 

An important consideration in designing high-speed stepping motor controllers is the effect of the inductance of the motor windings. As with the torque versus angular position information, this is frequently poorly documented in motor data sheets, and indeed, for variable reluctance stepping motors, it is not a constant! The inductance of the motor winding determines the rise and fall time of the current through the windings. While we might hope for a square-wave plot of current versus time, the inductance forces an exponential, as illustrated in Figure 2.10:

 

Figure 2.10

               

The details of the current-versus-time function through each winding depend as much on the drive circuitry as they do on the motor itself! It is quite common for the time constants of these exponentials to differ. The rise time is determined by the drive voltage and drive circuitry, while the fall time depends on the circuitry used to dissipate the stored energy in the motor winding.

At low stepping rates, the rise and fall times of the current through the motor windings has little effect on the motor's performance, but at higher speeds, the effect of the inductance of the motor windings is to reduce the available torque, as shown in Figure 2.11:

 

Figure 2.11

The motor's maximum speed is defined as the speed at which the available torque falls to zero. Measuring maximum speed can be difficult when there are resonance problems, because these cause the torque to drop to zero prematurely. The cutoff speed is the speed above which the torque begins to fall. When the motor is operating below its cutoff speed, the rise and fall times of the current through the motor windings occupy an insignificant fraction of each step, while at the cutoff speed, the step duration is comparable to the sum of the rise and fall times. Note that a sharp cutoff is rare, and therefore, statements of a motor's cutoff speed are, of necessity, approximate.

The details of the torque versus speed relationship depend on the details of the rise and fall times in the motor windings, and these depend on the motor control system as well as the motor. Therefore, the cutoff speed and maximum speed for any particular motor depend, in part, on the control system! The torque versus speed curves published in motor data sheets occasionally come with documentation of the motor controller used to obtain that curve, but this is far from universal practice!

 

Similarly, the resonant speed depends on the moment of inertia of the entire rotating system, not just the motor rotor, and the extent to which the torque drops at resonance depends on the presence of mechanical damping and on the nature of the control system. Some published torque versus speed curves show very clear resonances without documenting the moment of inertia of the hardware that may have been attached to the motor shaft in order to make torque measurements.

 

The torque versus speed curve shown in Figure 2.11 is typical of the simplest of control systems. More complex control systems sometimes introduce electronic resonances that act to increase the available torque above the motor's low-speed torque. A common result of this is a peak in the available torque near the cutoff speed.

 

About the Author

Assistant professor in lord venkateswara engineering college.I am doing phd in sathyabama university, Tamil Nadu,India.

How does torque change as the motor shaft rotates on a DC Motor?

I need to know how torque changes throughout one full 360 degree rotation of the armature/shaft of a DC motor. (Torque vs. Angle Position)

To answer this you have to specify how many poles there are on the motor. The result on a 2 pole motor is much different from a 12 pole.

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BMR Adjustable Torque Arm Pinion Angle How To

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Finest Motors Cars
But the differences on the new A4 aren't just cosmetic. The front axle and the engine have been slightly repositioned, which improves the Audi's traditionally front-heavy 60/40 weight distribution to about 55/45. In addition, an optional adjustable suspension creates multiple ride/handling balances that range from cushy to sporty. Packaged with this adjustable suspension is an adjustment system for steering feel and throttle response, which has three different set modes and a personalized mode where you can mix and match settings (for instance, soft suspension and tight steering). It sounds complicated, but like Burger King, the A4 allows drivers to have it their way.

All of this adds up to being the best A4 yet. Of course, the 2009 A4 faces stiff competition from all-stars in the mid-$30,000s to high-$40,000s, such as the more engaging BMW 3 Series, the affordably priced Infiniti G35 and the solidly built Mercedes-Benz C-Class. Since the convertible A4 didn't get the latest updates, we'd definitely hold out on the soft top. But for those in search of a sharp-looking compact luxury sedan or wagon with all-wheel drive, the latest technology features and a range of handling characteristics, the 2009 Audi A4 is an excellent choice.

Interior Design and Special Features

The Escalade Hybrid's cabin offers the same brand of unbridled luxury seen in gas-only models. The standard leather upholstery is soft to the touch and controls are thoughtfully placed and within easy reach. Build quality is beyond reproach, materials quality is excellent and the overall aesthetic is unapologetically sumptuous.

A standard third row allows the Escalade Hybrid to seat up to eight people. Disappointingly, though, these 50/50-split seats don't fold flat into the floor and must be removed manually. This can be a chore, since each seat weighs more than 60 pounds. With the third-row seats out of the picture and the second-row seats folded, cargo capacity maxes out at a spacious 109 cubic feet.

Finest Motors Cars :Body Styles, Trim Levels, and Options

The 2009 Infiniti FX35 is a midsize luxury crossover SUV available in either rear-wheel drive or AWD. The single well-equipped trim level includes 18-inch alloy wheels, xenon headlights, a power liftgate, leather upholstery, full power accessories, power front seats, a manual tilt/telescoping steering column, cruise control with steering-wheel-mounted switches, dual-zone automatic climate control, a back-up camera, 60/40-split rear seats and an 11-speaker Bose surround audio system with a six-CD changer, an auxiliary audio jack and satellite radio.

Options include a Premium Package, which includes heated and cooled front seats, Bluetooth connectivity, an iPod connector and a power tilt/telescoping steering column. A Deluxe Touring Package (which requires the Premium Package) adds 20-inch alloy wheels, adaptive headlamps and maple wood interior trim. The Navigation Package (which also requires the Premium Package) adds Infiniti's new hard-drive-based touchscreen navigation system with voice recognition, real-time traffic, a single in-dash CD player (in place of the six-disc changer), a parking system and a four-camera "Around View Monitor" that provides a 360-degree composite image of the vehicle from the outside.

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Max rpm on a fairly new build 302 ford motor ?

Hey

I got a 82 mustang and i was wondering how high i can sett the rpm limiter ? The car has got a edelbrock carb, cam, intake. Hypereutectic pistons and more... its not long since the engine was rebuild and all part are in pretty good condition. Rods and crank are original...
I'm setting the rpm limiter with a Mallory Ignition box with adjustable rpm limiter, and the car has got a manual.

How high can i sett the rpm ? Ps: Excuse my english, i'm from Norway icon smile Adjustable Motor

more often than not, the engine can take higher rpm than the accessories driven by the belt. i wouldn't go over 7000

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How to build / make an adjustable speed electric home made potters / pottery wheel