Angular Contact Ball Bearings are used for high accuracy and high-speed operation. Features: 1) Series Item NO. Bore Diameter (mm) 3200 3200~3222 10~110 3300 3302~3322 15~110 5200 5200~5220 10~100 5300 5303~5316 17~80 7000 7000~7060 10~300 7200 7200~7248 10~240 7300 7300~7340 10~200 7900 7906~7932 30~160 2) Bearing rings and balls possess their own contact angle that is normally 15, 25, 30, 40 a) C: normal contact angle a=15° b) AC: normal contact angle a=25° c) B: normal contact angle a=40° Larger contact angle --- higher resistance against axial load Smaller contact angle --- more advantageous for high-speed rotation. 3) Single-row bearings can accommodate radial load and axial load in one direction. 4) 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.
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