A - internal design and standard different bearings.

A - Angle contact ball bearing, contact Angle for 30 degrees.

A5 - Angle contact ball bearing, contact Angle for 25 degrees.

B - Angle contact ball bearing, the contact Angle is 40 degrees.

C - Angle contact ball bearing, the contact Angle is 15 degrees.

C - taper roller bearings, contact Angle for 20 degrees.

D - taper roller bearings, contact Angle for 28 degrees.

C, CA (with brass entity keep frame), CD (with stamping keep frame) - high load self-aligning roller bearings.

E - high load cylindrical roller bearing.

H - high load thrust self-aligning roller bearings.

J - tapered roller bearing outer ring groove of the small end diameter, Angle, outer width and ISO provisions and consistent.

G - rings, scrolling body for carburizing steels.

H - rings, roller is stainless steel.