Precision of taper roller bearings
Unit:umˇˇ
1) Inner rings
Bore | ˇ÷dmp | Vdp | Vdmp | Kia | ˇ÷Bs | ||||||
d mm | P0,P6X | P6 | P0,P6X | P6 | P0,P6X | P6 | P0,P6X | P6 | P0 | P6X | P6 |
over to | over to | over to | Max. | Max. | Max. | over to | over to | over to | |||
10 18 | 0 -12 | 0 -7 | 12 | 7 | 9 | 5 | 15 | 7 | 0 -120 | 0 -50 | 0 -120 |
18 30 | 0 -12 | 0 -8 | 12 | 8 | 9 | 6 | 18 | 8 | 0 -120 | 0 -50 | 0 -120 |
30 50 | 0 -12 | 0 -10 | 12 | 10 | 9 | 8 | 20 | 10 | 0 -120 | 0 -50 | 0 -120 |
50 80 | 0 -15 | 0 -12 | 15 | 12 | 11 | 9 | 25 | 10 | 0 -150 | 0 -50 | 0 -150 |
80 120 | 0 -20 | 0 -15 | 20 | 15 | 15 | 11 | 30 | 13 | 0 -200 | 0 -50 | 0 -200 |
120 180 | 0 -25 | 0 -18 | 25 | 18 | 19 | 14 | 35 | 18 | 0 -250 | 0 -50 | 0 -250 |
180 250 | 0 -30 | 0 -22 | 30 | 22 | 23 | 16 | 50 | 20 | 0 -300 | 0 -50 | 0 -300 |
2)Outer rings
D | ˇ÷Dmp | VDpˇˇ | VDmpˇˇ | Keaˇˇ | ˇ÷Cs | |||||
mm | P0,P6X | P6 | P0,P6X | P6 | P0,P6X | P6 | P0,P6X | P6 | P6X | P0,P6 |
over to | over to | over to | Max. | Max. | Max. | over to | over to | |||
18 30 | 0 -12 | 0 -8 | 12 | 8 | 9 | 6 | 18 | 9 | 0 -100 | same as ˇ÷Bs of same d |
30 50 | 0 -14 | 0 - 9 | 14 | 9 | 11 | 7 | 20 | 10 | 0 -100 | |
50 80 | 0 -16 | 0 -11 | 16 | 11 | 12 | 8 | 25 | 13 | 0 -100 | |
80 120 | 0 -18 | 0 -13 | 18 | 13 | 14 | 10 | 35 | 18 | 0 -100 | |
120 150 | 0 -20 | 0 -15 | 20 | 15 | 15 | 11 | 40 | 20 | 0 -100 | |
150 180 | 0 -25 | 0 -18 | 25 | 18 | 19 | 14 | 45 | 23 | 0 -100 | |
180 250 | 0 -30 | 0 -20 | 30 | 20 | 23 | 15 | 50 | 25 | 0 -100 |
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