... to bearings: Angular contact bearings ---- nominal contact angle greater than 0 to 45 in the bearings. 2) ... for axial load bearing, its nominal contact angle greater than 45 to 90. At different nominal ... Angular contact thrust bearings ---- nominal contact angle greater than 45 but less than 90 of the ... needle roller bearings, needle length and diameter ratio greater than 3, but the diameter is less ...