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Industrial Equipment, MRO

Motors, Transmissions

Motors, Transmissions Article

Early transmissions included the right-angle drives and other gearing in windmills, horse-powered devices, and steam engines, in support of pumping, milling, and hoisting. Most modern gearboxes either reduce an unsuitable high speed and low torque of the prime mover output shaft to a more usable lower speed with higher torque, or do the opposite and provide a mechanical advantage (i.e increase in torque) to allow higher forces to be generated. Some of the simplest gearboxes merely change the physical direction in which power is transmitted.

Many typical automobile transmissions include the ability to select one of several different gear ratios. In this case, most of the gear ratios (simply called "gears") are used to slow down the output speed of the engine and increase torque. However, the highest gears may be "overdrive" types that increase the output speed.


Motors, Transmissions Items

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DUAL SHAFT LELAND Electric MOTOR 1/6 hp 15 V +Capacitor

$9.99
EMERSON ELECTRIC MOTOR HP 3/4 PH1 SPECIAL SERVICE DUTY

$40.00
A.O. Smith H609 1.5HP 186892 3PH AC Motor 2.8A W/Pump

$99.99
Electric Gear Motor 24V Low Speed 50 RPM Gearmotor DC

$59.99
CDP3330 Baldor 1/2hp DC Motor

$30.99
Electronic Transformer 120V IN / 12V OUT 10 amp.

$0.01
Moog High Performance 12 Volt Brushless DC Motor BN23

$29.99
10 Pieces Moog High Performance 12 VDC Brushless Motor

$199.99
4 Pieces - Moog High Performance 12 VDC Brushless Motor

$99.99
New IB Telemecanique Thermal Overload Relay LR2 D3359

$29.99
NEW FRANKLIN ELECTRIC 1.5HP MOTOR

$79.99
US Motors/Emerson Horizontal AC motor 30 HP

$630.00
1 BRAND NEW 1 HP DAYTON DC MOTOR 2M170D

$150.00
ROLLER BEARING, FAG, 33111, 1N, 14110144, LOT-2 839B4

$19.99
US Motors/Emerson Horizontal AC motor 7.5 HP

$250.00
NEW US ELECTRICAL A442 15HP AC MOTOR 3545 RPM 3 PHASE

$499.99
US Motors/Emerson Horizontal AC motor 15 HP

$420.00
WEG W21 7.5 HP MOTOR,NEW IN CRATE

$102.50
Very High Torque DC 3V 52RPM Gear Motor Multi-Purpose!

$9.99
US ELECTRICAL 25HP AC MOTOR 1750 RPM FOSTER ELECTRIC

$699.99
NEW MAGNETEK ADJUSTABLE SPEED DC DRIVE MOTOR CONT DUTY

$39.99
Micro Motor 12v DC Gearmotor B138F.12.12 12 VDC NEW

$9.99
New in box GE 3/4 HP AC Motor, 115V, 5KCP39PGS511 S

$39.95
Lovejoy Coupler Kit Sid Harvey Couplings Box

$5.00
Marathon G590 Electric Motor 3 HP .875" Shaft - NEW

$149.99
WESLO 115 VDC PERMANET MAGNET MOTOR

$46.00
SIEMENS SIMATIC S7 SM321 6ES7 321-7RD00-OABO

$49.00
200pcs of new Black O-ring,OD=9mm ID=5.2mm

$9.99
Baldor 3HP 1725RPM BRAND NEW

$150.00
daton Industrial motor

$0.99
New in box GE 3/4 HP AC Motor, 115V, 5KCP39PGS511 S

$39.95
QTY 20 NEW 3/8 inch by 7/8 inch Bearings

$10.00
Baldor 25 HP Electric Motor

$50.00
Alpha Getriebebau SP 060 Gear Reducer GTS-140-M01-000

$9.99
WESTINGHOUSE 1.5HP ELECTRIC MOTOR 1150RPM,3PH,460V NRSV

$50.00
(1295-FC) BALDOR 50 HP, Super E Motor, NEW

$2500.00
MISC. SMALL ELECTRIC DC HOBBY MOTORS LOT PROJECT PARTS

$3.02
115V 60HZ Electric Motor Variable Speed Drive 115vac CW

$44.95
NEW 1/3 HP AC GE MOTOR

$0.99
NEW US ELECTRICAL MOTOR 7705E A06A121 R061N 30HP AC

$749.99
115v 230v 12v dc gear motor REVERSIBLE gearmotor 50 RPM

$117.00
200pcs of new Black O-ring,OD=9mm ID=5.2mm

$9.99
100 HP Baldor Electric Motor

$4000.00
Oriental Motors Torque Motor

$10.00
ELEC MOTOR W BATTERY TRAY, STIRING MAGNET, GLASS ROD

$11.95
NEW LEESON CJ45K17FK2K 2HP SINGLE PHASE AC MOTOR

$199.99
115V 60HZ Electric Motor 80W Variable Speed CW Qty. 2

$79.98
Bodine Electric 42A5BEPM-E2 130VDC 1/4HP 1.8A Motor

$19.95
AOKO LB6 1/60 GEAR/SPEED REDUCER WORM DRIVE DODGE LIKE

$599.00
Reversible Gear Motor 24v 50 RPM Gearmotor QTY OF 2

$89.95
A.O. Smith H612 2HP 182589 3PH AC Motor 3.3A W/Pump

$99.99
Mini DC 2.4V 55RPM Tiny Gear Motor, Durable Metal Gears

$9.99
NEW Century 4HP 230V Dual-Speed Waterways Motor - B235

$79.00
BALDOR 3004831-29 10 HP MOTOR, NIB

$107.50
MINSTER CYCLE-MITE EDDY CURRENT CLUTCH CONTROL

$19.99
SQUARE D FUSIBLE CONTACTOR MOTOR STARTER NOS NIB NR

$17.95
DC MOTOR 100 TO 1 GEAR HEAD

$49.00
BOX LOT OF MANY DIFFERANT MOTOR BRUSHES NEW LOOK!!!!!!!

$10.00
DOERR MOTOR D8CX 115V

$0.99
NEW BALDOR 3 PHASE MOTOR 2 HP 1740 RPM 60 HZ FREE SHIP!

$150.00
Grove Gear Reducer Gearbox Motor Boston Dodge 60-1 72

$49.99
1/8 HP Electric Motor 115 Volt Motor Pump Motor

$6.99
Emerson Condenser Fan Motor 3/4 HP HQ8079621EM

$49.00
MAGTROL INC HB-700-1 HYSTERESIS BRAKE NNB

$59.99
GENERAL ELECTRIC 1/4 HP MOTOR 5KC19SG346X 115 V

$30.00
Reliance Baldor Motor 1/2 HP 460V P56H5068

$49.99
Grove Gear Reducer Gearbox Motor Boston Dodge 60-1 70

$59.82
BISON MOTOR GEARED 12 VDC 100 IN LBS ROBUST W/ ENCODER

$11.55
15 HORSE ELECTRIC MOTOR 1760 RPM MODEL #BL1518254T

$99.99
DC Motor

$12.00
RELIANCE ELECTRIC MOTOR 7.5 H.P. 230/460V 1760 3PH NEW

$100.00
ADC K99-4007, dc electric motor, 8hp, 35 hp peak!

$425.00
BALDOR MOTOR 7-1/2 H.P. MOTOR 230 / 460 , 1760 3PH NEW

$100.00
Browning Chain Adjuster Tightener slack adjustment LOT2

$9.99
NEW LEESON N-215T17FK40A 10HP AC MOTOR 1750RPM 60HZ

$499.99
NEW BALDOR ECP4316T-4 75HP AC MOTOR 1780RPM 3PH 60HZ

$3999.99
3 HP Electric Motor, 3 Phase, 380 V, NO RESERVE!!!

$0.99
Electric Motor 25 HP 230 480

$100.00
Electric Motor

$31.00
BROWNING BEVEL GEAR BOX

$50.00
Redmond 6 Volt Electric Motor E-150 hobby robot auto

$9.99
DAYTON Adjustable Speed Motor 1F798 New in opened box

$749.99
407pc PROFESSIONAL O-RING ON ASSORTMENT RED SNAP CASE

$6.99
Thompson Accutrue Planetary Gearhead AT014-003-SO 3:1

$229.00
LOT OF 2 ORIENTAL MOTOR 5GU12.5K GEAR HEADS, NIB

$25.00
GE 15 HP Elec. Motor, Mod. 5KH254BD205A, NEW, 240 lbs

$100.00
SEW Eurodrive Gearmotor + Inverter 3 HP + Motor Gearbox

$249.99
RELIANCE ELECTRIC P28G0368J 30HP AC MOTOR

$499.99
Two Mini 12V DC High Torque Gear Motor 300rpm for Hobby

$17.99
Reversible Gear Motor 12v 50 RPM Gearmotor QTY OF 2

$89.95
Micro Motor 12v DC Gearmotor B138F.12.72 12 VDC NEW

$9.99
A.O. Smith H612 2HP 182589 3PH AC Motor 3.3A W/Pump New

$99.99
115v 230v 24v dc gear motor REVERSIBLE gearmotor 50 RPM

$117.00
MINI REDMOND ELECTRIC MOTOR OSCAR ENGINE TOY HIT MISS

$10.50
2 - Rex Engineering Motors 6142K48 & 6142K62 - NEW

$19.99
407 Pcs O-Ring Assortment Wholesale - Universal Series

$7.63