Gear
A gear or cogwheel is a rotating machine part having cut teeth, or cogs, which mesh with another toothed part to transmit torque. Geared devices can change the speed, torque, and direction of a power source. Gears almost always produce a change in torque, creating a mechanical advantage, through their gear ratio, and thus may be considered a simple machine. The teeth on the two meshing gears all have the same shape.Two or more meshing gears, working in a sequence, are called a gear train or a transmission. A gear can mesh with a linear toothed part, called a rack, thereby producing translation instead of rotation.
The gears in a transmission are analogous to the wheels in a crossed, belt pulley system. An advantage of gears is that the teeth of a gear prevent slippage.
When two gears mesh, if one gear is bigger than the other, a mechanical advantage is produced, with the rotational speeds, and the torques, of the two gears differing in proportion to their diameters.
In transmissions with multiple gear ratios—such as bicycles, motorcycles, and cars—the term "gear" as in "first gear" refers to a gear ratio rather than an actual physical gear. The term describes similar devices, even when the gear ratio is continuous rather than discrete, or when the device does not actually contain gears, as in a continuously variable transmission.
![Radlager Satz Radlagersatz VKBA596](https://m.bearing-wholesalers.com/uploaded_images/d2016865-radlager-satz-radlagersatz-vkba596.jpg)
- Radlager Satz Radlagersatz VKBA596
- 1 pcs
- Negotiable
![NK Radlager Satz Radlagersatz AUDI SEAT VW 754729](https://m.bearing-wholesalers.com/uploaded_images/d2016861-nk-radlager-satz-radlagersatz-audi-seat-vw-754729.jpg)
- NK Radlager Satz Radlagersatz AUDI SEAT VW 754729
- 1 pcs
- Negotiable
![2x Radlagersatz 2 Radlagersätze VKBA6500](https://m.bearing-wholesalers.com/uploaded_images/d2016865-2x-radlagersatz-2-radlagers-tze-vkba6500.jpg)
- 2x Radlagersatz 2 Radlagersätze VKBA6500
- 1 pcs
- Negotiable
![BLUE PRINT ADT38252 RADLAGERSATZ](https://m.bearing-wholesalers.com/uploaded_images/d2016863-blue-print-adt38252-radlagersatz.jpg)
- BLUE PRINT ADT38252 RADLAGERSATZ
- 1 pcs
- Negotiable
![123007112 LUK OE QUALITY CLUTCH PRESSURE PLATE](https://m.bearing-wholesalers.com/uploaded_images/d2016865-123007112-luk-oe-quality-clutch-pressure-plate.jpg)
- 123007112 LUK OE QUALITY CLUTCH PRESSURE PLATE
- 1 pcs
- Negotiable
![Radlager Satz Radlagersatz NK 753322](https://m.bearing-wholesalers.com/uploaded_images/d2016864-radlager-satz-radlagersatz-nk-753322.jpg)
- Radlager Satz Radlagersatz NK 753322
- 1 pcs
- Negotiable
![USED MERCURY 19277 DRIVEN GEAR 19278A2 BEARING 1989-2006 30-60HP](https://m.bearing-wholesalers.com/uploaded_images/d2016861-used-mercury-19277-driven-gear-19278a2-bearing-1989-2006-30-60hp.jpg)
- USED MERCURY 19277 DRIVEN GEAR 19278A2 BEARING 1989-2006 30-60HP
- 1 pcs
- Negotiable
![LESSON CM31T30NZ3D GEARMOTOR M1125099, 2E-01B-0095-2, GEAR MOTOR](https://m.bearing-wholesalers.com/uploaded_images/d2016864-lesson-cm31t30nz3d-gearmotor-m1125099-2e-01b-0095-2-gear-motor.jpg)
- LESSON CM31T30NZ3D GEARMOTOR M1125099, 2E-01B-0095-2, GEAR MOTOR
- 1 pcs
- Negotiable
![FORCE CHRYSLER FORCE pinion gear and bearing 901266](https://m.bearing-wholesalers.com/uploaded_images/d2016861-force-chrysler-force-pinion-gear-and-bearing-901266.jpg)
- FORCE CHRYSLER FORCE pinion gear and bearing 901266
- 1 pcs
- Negotiable