Regarding bearing accuracy classes, besides ISO normal accuracy . P4. P2. ⎯. ⎯. Ball. ABEC 1. ABEC 3. ABEC 5. ABEC 7. ABEC 9. A60. Bearings. (CLASS
White Paper on bearing tolerance and precision levels including definitions and specifications of ABEC and RBEC precision levels . ABEC 7, Class 4, P4.
P4). NSK supplies the following bearing series with P4Y tolerance: 7000; 7200. Super Precision Angular Contact bearings are specifically designed for rigid,
ABEC precision levels, ABEC-1, ABEC-3, ABEC-5, ABEC-7, and ABEC-9 are the equivalent to ISO precision levels P0, P6, P5, P4, and P2 respectively.
Determination of Applied Loads and Bearing Analysis . . . . . . . . . . . . . . . 36 .. to ABEC 7 (ISO P4) and ABEC 9 (ISO P2) precision classes. They are available in
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