Motorcycles vary depending on their model and structure, but each motorcycle is generally equipped with 20 to 30 bearings. These bearings are used in important rotating parts such as engines, transmissions, and wheels that support driving. They are responsible for reducing friction and ensuring the engine's power is transmitted to the wheels.

Application of bearings in motorcycle engines

crankshaft

Main bearing: ball bearing, cylindrical roller bearing

Connecting Rod: Crankpin Cage Bearing

Auxiliary equipment

Starter: Needle roller bearing

Oil pump: needle bearings, ball bearings

Application of bearings in motorcycle gearboxes

clutch

clutch release bearing

shift gears

Ball bearings, needle roller bearings

Bearing application in motorcycle chassis

Chassis

Ball bearings, needle roller bearings, tapered roller bearings, angular contact ball bearings, thrust needle roller bearings

Cardan shaft

Cross universal joint

On motorcycles, ball bearings are generally used in the engine's internal transmission system and wheels, plane ball bearings are used in the front fork, and needle roller bearings are used in the crankshaft connecting rod and some transmission gear shafts.

Generally speaking, the front wheels of cars below 100cc are 6200, 6201, 6300, 6301 and the rear wheels are 6301; The front wheels of 125cc and 150cc cars are 6301 and the rear wheels are 6202, 6302, 6200, 6201, 6202, 6203, 6204, 6205, 6206, 6300, 6301, 6302, 6000, 6001, 6002, 6003, 6004, 62/22 , 62/28, 62/32, 63/22, 63/28, 63/32 are also commonly used.