NF1021M/C4 N1021M NU1021M NJ1021M N3021K NN3021KTN1 NN3021K/W33 FC3656180 N036L1 N036F1 N036M NU1038K NN3038M NN3038K/W33 NU1040M .. Meanwhilewealsoprovidetheimperial(non-standard)bearing
Internal clearance is the play within a ball bearing. It is the geometrical low torque. High loads. Heavy interference fits. High temperature. Preloaded. C3,C4,C5
Generally, there are ball bearing, roller bearing and a combination of the two. . There are six clearance groups, namely C1,C2, Normal, C3, C4, and C5.
C3, Internal clearance ＞ CN, For bearing rings with press fits and large temperature differential between inner and outer ring. C4, Internal clearance ＞ C3. C5
C4. C3. C2，CM. C9NA，. C0NA. Roll neck of steel mill. Loose fit for both inner and outer rings. C2. C3，C4. 8.2.1 Criteria for selecting bearing internal clearance.