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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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Lincoln Electric Motor 30 hp

$319.00
NEW BALDOR DC GEAR MOTOR 1/4 HP 90V 165 RPM

$94.99
Oriental Motor ( 51K40A-AULA ) Brank New !

$24.99
25 watt PWM DC MOTOR SPEED CONTROLLER 0-16 VDC 2 AMPS

$9.95
(1421-65) GE Pump Motor, 3 HP, new

$125.00
Ultra High Torque DC 3V 39RPM Gear Motor Multi-Purpose!

$9.99
TIGEAR MOTOR REDUCER 20 to 1

$79.00
Industrial Vac. Cleaner Motor

$0.99
Dayton Direct Drive Blower Motor 4m197 new!!

$30.00
New Torque DC 12V 160RPM Gear Motor For Driver Control

$9.99
Reliance S-2000 AC Motor w/ Rexnord Stearns Brake 1HP

$49.99
Lot of Boston Gear PN: 64689-SH-1 Pillow Blocks, Qty.2

$29.99
HUB CITY 186 60:1 REDUCER ,NEW

$35.00
BROWNING BEARING VF4S-216 Lot of 2

$6.99
WWE Single PH Compressor Duty 3 HP Motor NIB - WARRANTY

$159.99
REEVES VARI-DRIVE Gearbox Speed Reducer !!! Dodge

$399.00
QTY 20 NEW 3/8 inch by 7/8 inch Bearings

$10.00
1HP Motor 1745 RPM TEFC 575 Volt 3 Phase REVERSIBLE NEW

$49.95
Motor 40 hp

$289.00
Gates B55 V80 Hi-Power II V-Belt LOT Of 2 NIB!

$9.99
3 FC175 Aluminum Flexible Couplers for Stepper Motors

$37.50
Gates 1626V290 EB Multi-Speed Belt 9804-0536 1" x 30"

$19.99
Leroy Somer LS71PR 1/2HP .5 HP 1PH Induction Motor

$74.99
Merkle-Korff - gearmotor .95AMP, 23RPM out 115 volt

$11.90
New 130 VDC 2.5 HP 4500 RPM Treadmill Replacement Motor

$25.99
Bando A Series Premium V-Belt LOT Of 12 NIB!

$19.99
Baldor 1-1/2HP 1.5HP Industrial Electric Motor 2850RPM

$99.99
THOMSON MICRON DuraTRUE PLANETARY GEARHEAD 10:1

$99.00
1/2 HP 36 volt DC motor

$100.00
THOMSON MICRON HELICALUltraTRUE PLANETARY GEARHEAD 10:1

$99.00
U.S. MOTORS: 50 HP 1780 RPM 326T 208V 126A 3PH ENCL-DP

$1850.00
NEW SURPLUS 5 HP ,1PHASE BALDOR ELECTRIC MOTOR

$213.00
NEW DAVID BROWN CONE DRIVE MSHV20-7A RATIO- 50:1 , NR!

$0.95
Dayton 1 h.p. electric motor

$25.00
Lot of 4 - Bauer Electric Gear Reduction Drive Motors

$9.99
DAYTON AC MOTOR

$24.95
Leeson A.C Motor (CM38H) Phase Electric Motor - New!!

$29.99
40D Gear Reducer of Pump Jack for oilfield equipment

$3600.00
Reliance Reversable High Voltage AC Motor P56H1741H

$24.99
Leeson A.C Motor (CM38H) Phase Electric Motor - New!!

$29.99
Pioneer Magnetics Model PM-2975A-3-4 Power Supply

$69.99
BALDOR RELIANCE 3 HP ELECTRIC MOTOR - NEW-ORIGINAL BOX

$350.00
BROWNING 3 GROOVE 14 in. V BELT PULLEY

$19.99
12VDC 5,10,30,50RPM Select one ,High Torque Gear Motor

$9.99
A.O. Smith Electric Motor 1 HP K48K2PA101A2

$20.50
Emerson Electric Motor K55HXNNZ-7057 3/4 HP

$18.75
Gates B51 V80 Hi-Power II V-Belt LOT Of 5 NIB!

$14.99
Reliance Electric E-Master AC Motor P18G3884A 3HP NIB

$79.99
TIGEAR 15 40:1 REDUCER ,NEW

$35.00
Lot of Boston Gear PN: 64549 / XL2-3/4 Pillow Blocks

$34.99
TIGEAR 26Q4OL56 40:1 SPEED REDUCER ,NEW

$50.00
Leeson Electric Motor 1/4 HP M1135259.00

$24.56
Gates B56 V80 Hi-Power II V-Belt NIB!

$9.99
Zhongshan FS-75 Electric Ceiling Fan Motor

$1.04
KNOPP TYPE K-3 PHASE SEQUENCE INDICATOR WITH CASE

$75.00
North American Electric Explosion Proof Motor XP1802

$5.50
Baldor 3 Phase AC Motor, 60Hz, 1725 RPM, 3 HP, NEW

$159.99
TESCO / WESTINGHOUSE 125 HP MOTOR

$999.00
Mini DC 2.4V 55RPM Tiny Gear Motor, Durable Metal Gears

$9.99
STATUCE ELECTRIC 115 VDC GEAR DRIVE MODEL NO 5077-001 A

$49.99
WWE Single PH 56C Flange Motor W/Manual Overload 1.5 HP

$179.99
MagneTek 1 HP Motor, 3 Phase *Brand new STILL IN BOX

$39.99
BALDOR 15 HP Super E Premium Efficiency Motor EJMM2513T

$399.99
Bando B60 Premium V-Belt LOT Of 13 NIB!

$19.99
Emerson Compressor Motor T63CWCEC1260

$11.61
46X60X7 HTC ACM Metric Oil Seal BH3288E NOK Seals

$0.99
BOSTON GEAR F71830B56 30:1 REDUCER , NEW

$35.00
1/8 hp Reversible 115V AC PM Motor Variable Speed Drive

$99.00
electric motor Model # S55TGT-7834 LIKE NEW washer

$19.99
BOSTON GEAR F726 20 B5 6 20:1 REDUCER ,NEW

$40.00
418 Fractional hp Electric Motors

$2000.00
Four General Electric 1/2 hp Motors

$130.00
Square D Definite Purpose Contactor 8910DPA33S28V02

$19.95
WWE Single PH Compressor Duty 5 HP Motor NIB - WARRANTY

$169.99
High Velocity 30" Fan Motor Stand Mounted Unused

$14.99
Boston Gear Box CAT NO: F713-30-B5-6

$24.99
RELIANCE AC MOTOR

$24.95
Case of 250 Mabuchi Motors RK-270SH-11374A

$89.99
WWE Single PH Compressor Duty 2 HP Motor NIB - WARRANTY

$149.99
Bando A84 Premium V-Belt LOT Of 10 NIB!

$19.99
Gates AX85 V80 Tri-Power V Belt LOT Of 4 NIB!

$19.99
General Electric Single Phase Electric Motor

$19.99
13 REXNARD N5936 CHAIN SPROCKET

$24.99
Baldor 3 Phase AC Motor, 60Hz, 1725 RPM, 2 HP, NEW

$104.00
A O Smith 30hp Electric Motor

$499.00
25 watt PWM DC MOTOR SPEED CONTROLLER 0-16 VDC 2 AMPS

$9.95
RELIANCE AC MOTOR

$24.95
Robertshaw 3450-001 motor protector new in box

$15.00
QTY2)***** NEW 1.5 inch bore pillow block bearings****

$28.00
15 Electric Motors AS-IS Repair Or Scrap For Copper

$2145.00
BODINE AC MOTOR

$14.95
Brand New GE 1/3 HP Motor Model 5KH32FN5586X NR

$26.00
Reliance Reversable Motor w/ Unibrake Disc Brake 1.5HP

$49.99
NIB GE MAGNETIC STARTER CR206E0 NEMA SIZE 3 3 POLE

$149.00
SEW Eurodrive Gearmotor + Inverter 3 HP + Motor Gearbox

$169.99
Lot of 9 Dayton Electric Motors 1/40 HP 3M544D

$38.89
Gates B40 V80 Hi-Power II V-Belt LOT Of 9 NIB!

$14.99
Reliance Reversable Dual Shaft AC Motor P56X7202V 1HP

$29.99
DAYTON 3M504 Direct Drive Blower Motor 1/4 HP NIB NOS!!

$39.99
Reliance Motor 40 hp

$325.00