Bearings are widely used in various machinery. It can be said that as long as it is a running machine, it is inseparable from bearings, and bearings are the key components of motorcycles. Because most of the mechanical parts are exposed, motorcycles are subjected to the severe test of high-speed rotation in harsh driving environments. This requires motorcycle bearings to meet good durability and high sealing performance to prolong the service life of motorcycles.
Performance of motorcycle bearings
■ Smooth rotation through low friction and vibration;
■ With foreign body resistance and high rigidity;
■ Durability, etc. must be ensured;
Motorcycle engine and transmission bearings are required to be resistant to foreign matter and high rigidity because they are used under the conditions of high temperature, high speed rotation, and large impact load in an environment of foreign matter. In addition, wheel bearings must be suitable for use in various terrains and uses of the vehicle, so they must also have durability against water, mud, and the like.
Engine application
1.Crankshaft
Main bearings: ball bearings, cylindrical roller bearings
Connecting rod: Crank pin cage bearing
running on time
2.Camshaft: needle roller bearing, ball bearing
3.Auxiliary equipment
Starter: needle bearing
Oil pump: needle roller bearing, ball bearing
Gearbox application
1.Drive and transmission Shafts
Ball and roller bearings and slotted lightweight plastic cage bearings for idlers
2.Clutch
clutch release bearing
3.Shift gears
Ball bearings, needle bearings
Chassis application
1.Chassis
Ball bearings, needle roller bearings, tapered roller bearings, angular contact ball bearings, thrust needle roller bearings
2. Universal shaft
cross universal joint
Common Models of Motorcycle Bearings
On motorcycles, ball bearings are generally used in the internal drive system and wheels of the engine, flat ball bearings are used on the front fork, and needle bearings are used on the crankshaft connecting rod and some transmission gear shafts.
Generally speaking, for cars below 100cc, the front wheels are 6200, 6201, 6300, 6301 and the rear wheels are 6301; For 125cc and 150cc cars, the front wheels 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 more commonly used.
2023-01-06