Ball bearings and angular contact ball bearings What is the difference and the link? Angular contact ball bearing is a type collectively. Ball bearings are part of angular contact ball bearing guides, but most of the ball screw bearing contact angle of 60 degrees, the Daya Bay rail slide distributor, can withstand higher axial force Whitehead rail slide distributor, accuracy and relatively high rigidity. Ball can also use other angular contact ball bearings. Huizhou face dual bearing slide rails installed agent, back to back, which faces the surface? Which side is the back? I'm dizzy, thank you to answer! 1. Such a call, only the angular contact bearings, single row tapered bearings only. 2. Face to face all kinds of call-back big table face similar or contact face similar small or contact BB (Back to back) Mounting FF (Face to face) Mounting Indirect Mounting Direct Mounting "O" Mounting "X" Mounting rail slider Henggang distributor rail, along GF bearing electromechanical provided by Shenzhen-GF bearing Electrical Co., Ltd.. Shenzhen City, Guangdong Development bearing Electrical Co., Ltd. (www.sgfzc.com) (www.sgfzc.com) strong, credible, in other industries, Guangdong Shenzhen accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Shun GF bearing Electrical and you hand into the brilliant, for a better future!