Angular contact ball bearing can bear redial load and axial load at the same time. Can work under high speed. The larger the contact Angle, the higher the axial bearing capacity. High speed precision angular contact ball bearing, mainly used for high speed rotating load lighter, bearings and high precision, high speed, low temperature rise, low vibration and service life. Often for high speed motorized spindle bearing parts installed in pairs, is the key to the high-speed motorized spindle surface grinding machine fittings.