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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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TRAVERSE CITY MDVS40A901-U6A 250 : 1 CONE DRIVE
$100.00
Dayton Permanent Magnet DC Electric Motor 2M168D
$86.55
115v 230v 12v dc Reversible Variable Speed Gear Motor
$129.99
Dayton Electric Motor w/ Controller 4Z727 5X412
$29.00
Reliance Reversable High Voltage AC Motor P56H1741H
$19.99
BROWNING CAST IRON 3 GROOVE BELT PULLEY 8 INCH x 1-1/16
$9.99
RAE Corporation 90 Volts DC .51 AMPS Motor NEW
$3.99
INDUSTRIAL ELECTRIC MOTOR CONVERYOR BELT BLUE HZ 50 NR
$0.99
Westinghouse 75 HP motor
$4000.00
A . O . SMITH U6520 1/8 HP MOTOR , BELIEVED TO BE NEW
$20.00
Elite CSW200 UL 1/2 HP Commercial Swing Gate Operator
$1479.00
electric motor IEC 20 HP 460v/240v 3 phase MBT160L
$199.00
BRAND NEW ORIENTAL INDUCTION MOTOR WITH GEAR HEAD
$59.00
1/8 hp Reversible 115V AC PM Motor Variable Speed Drive
$99.00
GE 1/4 HP VACUUM PUMP AND MOTOR 110v 1/4 hp
$22.51
GTO PRO GP-SW100 Commercial Duty Swing Gate Operator
$1269.00
Baldor CJM3111 3/4 HP Electric Motor,3450 RPM, NEW
$49.95
GEAR REDUCER PART No PS142-020-010SH (SERVO TYPE) NEW
$1975.00
(1295-FC) BALDOR 50 HP, Super E Motor, NEW
$750.00
two stature electric 1/4 hp 12V DC motors
$20.00
GERMAN GEARHEAD DC MOTORS
$100.00
Baldor Motor, # GC25010
$225.00
Winsmith Speed Reducer W/ Motor, Clutch, AND Brake!
$611.61
Micro 6mm dia. gearmotor for hobby and robots (40 rpm)
$13.00
Baldor 5HP Motor PL1327M Used
$127.00
Craftsman 1 1/2 HP Capacitor Start 10" Table Saw Motor
$152.50
97V VDC 17 HP ELECTRIC DC MOTOR YACHT-SAILBOAT-BIKE
$499.00
DC MOTOR BI DIRECTIONAL 12V REMOTE CONTROLLER (MCR-1)
$32.50
5 BRAND NEW ORIENTAL SPEED CONTROL MOTORS #US206-001-C1
$139.00
Oriental Motors Torque Motor
$10.00
1.5 hp 3ph electric motor and hookup cable
$30.00
BALDOR 1 HP MOTOR 3 PHASE 60 HZ #CBM3546T
$30.00
AC 115 Volt 4.3 Amp 1/4 HP motor
$5.99
RELIANCE 1 HP ELECTRIC MOTOR 1725 RPM FL143TC NEW 090EB
$99.99
Eagle Diamond Control Board For All Eagle Gate Operator
$299.00
FALK OMNI BOX WORM REDUCER, 2 TO 1 12 HP.
$9.99
Baldor Motor, # GPP 3388
$298.00
Rotex Flexible Shaft Motor Coupling 12mm x 12mm NEW
$7.99
12V 60 RPM Torque Gear Box DC Motor for Camping Cycle
$7.99
Reliance Electric P21R5506 AC Motor 25HP
$99.99
3/4 HP ELECTRIC MOTOR
$15.00
SUMITOMO SM-CYCLO GEAR REDUCER MODEL HC 3110 RATIO 21:1
$122.00
50 HP Marathon Motor (still in shipping crate)
$800.00
120V 240V AC/DC PMDC Electric Motor Variable Low Speed
$129.99
2 HP Motor (NIB)
$50.00
H042 AO Smith Aeration Fan Motor 3 Ph 1HP 3600RPM 56Fr
$29.99
BODINE ELECTRIC AC GEARMOTOR 1/10 HP 115 VOLT
$49.99
Century AC Motor
$650.00
New Eberhardt Denver Speed Reducer
$59.99
TWO 24 volt DC GEAR MOTORS
$15.00
MOTOR STARTER
$15.00
12V 15 RPM Torque Gear Box DC Motor for Drive Control
$7.99
NEW WESTERN DC MOTOR
$100.00
12v Gear Motor PWM Variable Speed 12vdc Gearmotor 50RPM
$79.95
Stober Variable Speed Power Transmission PTO Box
$69.99
WWE Single PH Compressor Duty 5 HP Motor NIB - WARRANTY
$179.99
New in box Baldor AC Drive Motor eEPC3771T-4 10 HP
$500.00
ELECTRIC FLUID RESERVOIR HEATER MOTOR PET AUTO FUEL OIL
$30.00
RELIANCE 1-1/2 HP DUTY MASTER AC MOTOR MOD P79C0524M-WX
$59.00
Helical W7C25-10mm-12 flexible shaft coupling NEW!!!
$4.99
General Electric GE 3 HP Vertical Mount Motor
$199.00
Baldor 15 HP Washdown Duty Motor CWDM3713T - Unused- NR
$900.00
New In Box Dayton Industrial Gearmotor 33 RPM 6Z082
$55.00
Dayton 2M168CPermanent Magnet DC Motor 1/2 HP NEW NB
$165.00
50 HP Motor (US Motors) 326 T Frame, 1775 RPM
$750.00
Baldor Boehm Geared Motor 90V
$31.00
EMERSON MOTOR 1/40 HP 1550 RPM NEW UNOPEN BOX
$15.00
Acme Transformer t69434 Constant Voltage Regulator
$49.99
12V DC 30RPM Permanent-Magnetic Planet Gear Motor-New!
$19.99
Mini DC Gear Motors for hobby and robots (50 rpm) NEW!
$13.00
Reliance Electric XE Efficient Electric Motor 3HP LKQ
$30.47
Furnas-REPLACEMENT PART -CONTACT KIT- N E W-
$1.00
NEW Bayside Gearhead Gearmotor Planetary Gearbox PS
$99.99
COMMERCIAL CENTRAL AC MOTOR by a.o smith
$650.00
Dayton Magnetic Disc Brake 5X400A NEW IN BOX
$20.00
Baldor Motor, # GLP 3336
$375.00
Baldor 50 HP Industrial Motor Frame 326T - No Reserve!
$400.00
40 HP Motor (US Motors) 324 T Frame, 1775 RPM
$650.00
BAYSIDE RIGHT ANGLE GEAR REDUCER 20:1 RATIO ---NEW---
$1475.00
Pacific Scientific 140 VDC Motor 2850 RPM 2 HP PWM NEW
$599.99
Browning PB250 Saddle Bearing for 1" Shaft
$3.00
*New* 1 1/2 HP 3450 RPM Electric Motor
$140.00
20 HP Marathon Motor. 1750 RPM
$300.00
Siemens PE 21 Plus Premium Efficiency 125 HP Motor
$750.00
15 HP Motor. Baldor-Super E (still in shipping crate)
$250.00
Reliance Electric E-Master AC Motor P18G3884A 3HP NIB
$69.99
Oriental Motor 36:1 Parallel Shaft Gearhead 4GN36KA NIB
$9.99
1KW+ Windmill Generator ??? 180VDC Baldor 1.5Hp Motor
$99.95
20 hp AB BULLETIN 1329 INVERTER DUTY INDUCTION MOTOR
$250.00
Bodine right angle gear motor 1/6hp
$49.99
Reversible Electric Gear Motor 12v 50 RPM Gearmotor DC
$59.99
Johnson 12V DC mini electrical Motors #HC 315 MSG 3976Q
$0.75
Marathon Electric Motor
$899.00
VERY NICE RELIANCE BRAKE 230/460 VOLTS M5IA0327M-TG
$59.99
Vanguard 125 HP Motor Model VM-5825 Frame 444T
$750.00
NEW 5 HP BALDOR AIRCOMPRESSOR ELECTRIC MOTOR L1410T
$349.95
RELIANCE ELECTRIC AC SYNCHRONOUS MOTOR 2 HP (NEW)
$50.00