A brief introduction of bearing clearance code

Clearance code expressed with letters and Numbers ( 0 only set of figures '0') , such as without that, it is to point to bearing radial clearance, as shown in the table below. Symbol meaning the sample - Clearance conform to the standards prescribed by the 0 group 6210 / C1 clearance conform to the standards prescribed by the 1 set of NN3006K/CI/C2 clearance conform to the standards stipulated by the two groups, 6210 / C2 / C3 clearance conform to the standards prescribed by the three groups, 6210 / C3 / C4 clearance conform to the standards stipulated by the four groups NN3006K/C4 / C5 clearance conform to the standards prescribed by the 5 groups NNU4920 K/C5 / C9 clearance is different from the current 6205 - prescribed standards 2 rs/C9 / CN0 group clearance. / CN combined with letter H, M or L, said clearance range by half, if combined with P, said clearance/CNH - range migration 0 group clearance by half, is located in the upper/CNM - 0 group clearance by half, is located in the central/CNL - 0 group clearance by half, is located in the lower half - /CN/CNP- Said clearance area is located in the upper and the lower part of C3 0 group note: tolerance grade code with clearance code said at the same time, can be simplified, the tolerance grade code plus the clearance group number ( The 0 group said) The combination of. For example, a bearing level of tolerance for P6 group, radial clearance for C3 group, can be simplified as '/ about'; A bearing level of tolerance for P5 group, radial clearance for C2 group, can be simplified as '/ P52.