Ceramic bearing 6902 2rs also referred to as a size 6902 ball bearing, 61902 ball bearing or 15x28x7 mm ball bearing. Uses diamond polished Zirconia Ceramic Races and Balls.
The advantages of our ceramic bearings are vast including lighter weight, lower friction and heat, greater speeds and much greater durability. Fully sealed on both sides.
Ceramic maintains mechanical properties at high temperature, so full ceramic bearing can be used at elevated temperature
Full ceramic bearing are more suitable for chemical industry application
Because thermal expansion co-efficiency of ceramic are smaller than metal, so the change of clearance of full ceramic bearing is smaller than that of metal bearing
Because ceramics are self-lubrication. Full ceramic bearing could be used at high-vacuum environment
Because ceramics is not electrical conductor
Because ceramics do not respond to magnetic forces
Packing Details : Single packed in small white box then in big carton or wooden box or pallet
Delivery Details : Common sizes we have in stock and can send out immediately or 7~10 days assembling time or 20~25 days production time
2014/9/21 Shanghai Bearing Industrial exposition
2015/4/21 Germany Hannover Messe
2016/9/21 Shanghai Bearing Industrial exposition
2017/4/21 Hermany Hannover Messe
2018~future Every year we attend the bearing messe