Precision of conic bore radial bearings

 Unit:um¡¡

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Bore ¡÷dmp ¡÷d1mp-¡÷dmp Vdp
d mm P0 P0 P0
over      to over      to over      to max.
-    10 + 15    0 + 15    0 10
10    18 + 18    0 + 18    0 10
18    30 + 21    0 + 21   0 13
30    50 + 25    0 + 25    0 15
50    80 +30    0 + 30    0 19
80    120 + 35    0 + 35    0 25
120    180 + 40    0 + 40    0 31
180    250 + 46    0 + 46    0 38

Remarks:
1.The above tolerance is suitable for conic bore inner rings with taper being 1:12
2.a: 1/2 of metric taper of the conic bore
  a=2¡ã23'9.4"
   =2.385 94¡ã
   =0.041 643 rad