2. Angular contact ball bearings

Single-row	Back-to-back arrangement	Face-to-face arrangement	Tandem arrangement	Double-row
	DB	DF	DT	With filling slot
7000, 7200, 7300, 7400 Contact angle30   7000B, 7200B, 7300B, 7400B Contact angle40 7900C, 7000C, 7200C, 7300C   Contact angle15 HAR900C, HAR000C Contact angle15				3200 3300 Contact angle 32	5200 5300 Contact angle 24

Bearing rings and balls possess their own contact angle that is normally 15, 30 or 40. Larger contact angle --- higher resistance against axial load Smaller contact angle --- more advantageous for high-speed rotation Single-row bearings can accommodate radial load and axial load in one direction. DB and DF matched pair bearings and double-row bearings can accommodate radial load and axial load in both directions. DT matched pair bearings are used for applications where axial load in one direction is too large for one bearing to accept. Angular contact ball bearings are used for high accuracy and high-speed operation.