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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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110 VOLTS 700 WATT DC WIND GENERATOR MOTOR LATHE
$5.99
Electric Motor 7.5 hp 240 Volt Replacement 1680 RPM
$399.99
RELIANCE P56X4502R/FK56 FRAME/230-460 1 HP ELECT. MOTOR
$49.99
NEW SURPLUS 5 HP ,1PHASE BALDOR ELECTRIC MOTOR
$211.00
Used Dayton 3/4 HP 3450rpm #5k684d electric Motor NR
$40.00
NEW 1 HP Baldor TEFC 1 Phase Electric Motor 56 5/8 1725
$181.99
LENZE C4D18N21B DIRECT CURRENT MAGNET MOTOR
$9.99
1 HP C2162-60006 CARRIAGE MOTOR DRIVE HP DESKJET SERIES
$14.99
120 VDC WIND GENERATOR/MOTOR
$19.99
Marathon Electric Motor
$899.00
15 raco #810 4” sq covers 2-9/94 dia hole twist lock
$9.99
New Marathon electric 1/20 HP (HVAC) fan motor
$6.50
Baldor 10 HP General Purpose Electric Motor
$71.89
BRAND NEW ORIENTAL MOTORS WORM GEAR MOTOR #4IK40AF-36RB
$89.00
Dayton 5hp Air Compressor 230v 21 amp motor #4FG52F
$130.50
Two Mini 24V DC Gear Motors 300rpm for Hobby-buySAFE
$19.99
640 WATT 120V DC WIND GENERATOR TURBINE MOTOR
$21.00
2hp 120v DC Treadmill Motor
$15.00
MOTOR DAYTON 4Z3780 180vDC HP1
$20.00
(2) 1/100-Hp 115V 1550-RPM Shaded Pole Motors NIB
$9.95
FORMSPRAG SLEEVE BEARING CLUTCH, FS 6-1 RH IN BOX NOS
$9.99
BODINE SMALL MOTOR GEARMOTOR 241-17 1.12 HP 1700 RPM
$47.00
GE 1/4 HP Reverseable 1725 RPM 115 Volt Electric Motor
$25.00
VonWeise Gear Motor
$69.99
ROBBINS & MYERS 2-SPEED CONSEQUENT POLE MOTOR 1-1/2 HP
$49.95
MOTOR 27V DC 2500 RPM PANCAKE TYPE
$24.95
Dayton Electric Motor #N9R727 5/8" Shaft 3 Phase - NEW
$109.99
2 Morse Torque Limiters NEW 700A-1 1 1/2 in 466301
$50.00
12V 5 RPM Torque Gear Box DC Motor for Watch Winding
$7.99
RELIANCE 1-1/2 HP DUTY MASTER AC MOTOR MOD P79C0524M-WX
$59.00
DAYTON 1/3hp. SPLIT PHASE MOTOR
$44.99
BRAND NEW ORIENTAL MOTORS REVERSIBLE MOTOR #5RK4OGK-AA
$49.00
Electric Motor 25Hp 3Ph TEFC Brand New NIB
$1650.00
NEW 5 HP BALDOR AIRCOMPRESSOR ELECTRIC MOTOR L1410T
$349.95
GX390 13 HP HONDA CYLINDER BARRELL NEW
$25.00
BODINE ELECTRIC AC GEARMOTOR 1/10 HP 115 VOLT
$49.99
7 BRAND NEW ORIENTAL MOTORS REVERSIBLE MOTOR 4RK25GK-A
$49.00
10-6203-2RS NEW! Deep Groove Bearings
$9.00
7.5 hp 3 phase electric motor
$51.00
NMB MOTOR-UNIPOLAR STEPPER PM35L-048-HPD4 W/ WORM GEAR
$14.99
Fuji SC2 35amp power relay contactor
$9.99
MABUCHI 12 VOLT DC MOTOR - 5500 RPM - BRAND NEW
$4.98
General Electric DC Motor Electric Car
$250.00
NEW MAGNETEK 7.5 HP CENTURY E-PLUS MOTOR CAT# E 300
$289.00
One DC 12V/12 V DC 30RPM High Torque Gear Motor-BuySAFE
$9.99
Four MAXON 12 volt DC GEAR MOTORS
$59.99
WorldWide 60 HP Electric Motor
$2200.00
1/2 HP 12 TO 48V DC ELECTRIC MOTOR
$5.94
HEYNAU VARIABLE SPEED TRACTION GEAR BOX
$75.00
5 BRAND NEW ORIENTAL SPEED CONTROL MOTORS #US206-001-C1
$139.00
Brand New Maxi-Torq 24 Volt DC 1/3 HP 67 RPM Gearmotor
$149.95
Baldor Industrial Electric Motor
$19.99
Leeson Motor Catalog No: G130282.00 Model: C182T34DB4A
$24.99
Two Mini 24V DC High Torque Gear Motor 600rpm for Hobby
$16.99
DAYTON 4Z140B 1/8 HP INDUSTRIAL GEAR MOTOR NEW!
$9.99
Square D Definite Purpose Contactor 8910DPA33S28V02
$19.95
One Medium Torque DC 3V 470RPM Gear Motor Multi-Purpose
$9.99
NEW 5-4-3-2 OD 4-Step 5/8" Bore Cast Iron Pulley Maska
$47.80
Emerson 1/2 hp Motor 1/2 shaft NEW 115 reversable
$69.00
Snap-On Modis Scanner v7.2 - Domestic, European, Asian
$2651.00
cast iron 3 1/4" variable pulley sheave 5/8 bore
$4.95
AO Smith Furnace Blower Motor U48A45Z01 FOR REPAIR
$19.99
Oriental Reversible Motor 4RK25GK-Aul Noritsu
$9.99
115VAC DAYTON GEAR MOTOR
$69.99
Powerful High Torque DC 12V 160RPM Gear Motor-buySAFE!
$15.99
PERSKE VUS 61.15-2 ELECTRIC MOTOR 3 HP HIGH SPEED WOW !
$9.99
Bodine Gearmotor
$150.00
Baldor Industrial motor 7-1/2 Hp
$49.95
1.5-3VDC Electronic Motor new
$0.99
Vintage Sears Roebuck 3/4 HP AC motor Flat Belt Pulley
$0.01
NEW alco controls TXV valve power head HVAC sporlan
$9.99
1/2 HP WESTINGHOUSE ELECTRIC MOTOR 3 PH NOS WITH MOUNT
$19.95
MOTOR HP1/8 42 rpm 50;1 ratio CK3425w2180 90v DC
$20.00
EV DC MOTOR ELECTRIC VEHICLE DC 24V
$158.00
New Heavy Duty 3 speed Fan Motor Model FS-75 NR
$7.95
DAYTON GEARCASE MOTOR
$49.99
GE GENERAL ELECTRIC MOTOR 1725 RPM 1/20HP 115V NEW
$47.00
3 BRAND NEW ORIENTAL MOTORS INDUCTION MOTOR #3IK15GK-AA
$49.00
LOUIS ALLIS 100 HP TEFC MOTOR
$999.00
2 bodine electric motor reduction
$5.50
12 volt DC GEAR MOTORS
$9.99
WorldWide Electric Motor 1.5HP
$175.00
Two Mini 12V DC High Torque Gear Motor 200rpm for Hobby
$17.99
Bodine Gearmotor
$9.99
Leeson DC Parallel Shaft Gear Motor
$140.00
New Bodine Gear Motor
$69.99
TURN-ACT MOTOR
$29.99
Ultra High Torque DC12V 32rpm Gear Motor Multi-Purpose
$9.99
Leeson Electric Motor
$19.99
New Leeson G121528 All Stainless Washguard Motor 3HP
$675.00
NEW General Electric Motor 15Hp 230/460 V 36.8/15.4 AMP
$159.99
HEAVY DUTY HIGH TORQUE 12V GEAR MOTOR ROBOTICS
$15.00
NMB MOTOR-UNIPOLAR STEPPER PM55L-048-HPG9 W/ METAL GEAR
$14.99
180VDC Geared Motor 6 RPM
$9.95
NUTALL GEAR REDUCER 5 HP 25.63 RATIO
$100.00
BODINE AC GEAR MOTOR, MODEL # NCI 1303 60:1 RATIO
$39.99
110 VOLTS 700 WATT DC WIND GENERATOR MOTOR LATHE
$10.85
Magnetic Control of Industrial Motors, Heumann, 1948 bk
$24.95
VINTAGE POWERMATIC DRILL PRESS MOTOR 1-1/2 HP
$29.95