709C High Precision One-Way Angular Contact Thrust Bearing

709C Angular Contact Ball Bearing 1.Best quality,competitive price 2.low noise,long life 3.OEM service available 709C High Precision One-Way Angular Contact Thrust Bearing

An Angular Contact Thrust Bearing uses axially asymmetric races. An axial load passes in a straight line through the bearing, whereas a radial load takes an oblique path that tends to want to separate the races axially. So the angle of contact on the inner race is the same as that on the outer race. Angular Contact Thrust Bearing better support "combined loads" (loading in both the radial and axial directions) and the contact angle of the bearing should be matched to the relative proportions of each. The larger the contact angle (typically in the range 10 to 45 degrees), the higher the axial load supported, but the lower the radial load. In high speed applications, such as turbines, jet engines, and dentistry equipment, the centrifugal forces generated by the balls changes the contact angle at the inner and outer race. Ceramics such as silicon nitride are now regularly used in such applications due to their low density (40% of steel). These materials significantly reduce centrifugal force and function well in high temperature environments. They also tend to wear similarly way to bearing steel_rather than cracking or shattering like glass or porcelain.

  

709C High Precision One-Way Angular Contact Thrust Bearing