7003 7004 7006 7008 7009 7010 Single Row Angular Contact Ball Bearing Bearing Steel Material 7005CTYNSULP4 NSK

Are angular contact bearings directional ?

Angular contact (Spindle) bearings are designed to withstand axial loads in only one direction. The “V” laser marking on the outer ring denotes the direction of load applied to the bearing outer ring.

Do angular contact bearings need preload?

Preload for Angular Contact Bearings

First, it's important to know that a preload is required for angular contact bearings. This is because of the bearing design; it needs constant contact to happen between the balls and raceway. This constant contact is achieved through a bearing preload.

Angular contact ball bearings 7000 7200 Series: