Page 175 - Rollingbearings

Tolerances and resultant its
Table 20
Housing tolerances and resultant its
+
0
–

Housing Bearing Housing bore diameter deviations, resultant its 1)
Nominal bore Outside diameter Tolerance classes
diameter tolerance
D t ΔDmp K6� K7� M5� M6� M7�
Deviations (housing bore diameter)
Theoretical interference (–)/clearance (+)
over incl low high Probable interference (–)/clearance (+)

mm µm µm

630 800 0 –75 –50 0 –80 0 – – –80 –30 –110 –30
–50 +75 –80 +75 – – –80 +45 –110 +45
–33 +58 –58 +53 – – –63 +28 –88 +23
800 1 000 0 –100 –56 0 –90 0 – – –90 –34 –124 –34
–56 +100 –90 +100 – – –90 +66 –124 +66
–36 +80 –63 +73 – – –70 +46 –97 +39
1 000 1 250 0 –125 –66 0 –105 0 – – –106 –40 –145 –40
–66 +125 –105 +125 – – –106 +85 –145 +85
–42 +101 –72 +92 – – –82 +61 –112 +52
1 250 1 600 0 –160 –78 0 –125 0 – – –126 –48 –173 –48
–78 +160 –125 +160 – – –126 +112 –173 +112
–48 +130 –85 +120 – – –96 +82 –133 +72

1 600 2 000 0 –200 –92 0 –150 0 – – –158 –58 –208 –58
–92 +200 –150 +200 – – –150 +142 –208 +142
Bearing interfaces
–57 +165 –100 +150 – – –115 +107 –158 +92
2 000 2 500 0 –250 –110 0 –175 0 – – –178 –68 –243 –68
–110 +250 –175 +250 – – –178 +182 –243 +182
–67 +207 –116 +191 – – –135 +139 –184 +123

B.6

1) Values are valid for most bearings with Normal tolerances For exceptions, refer to Tolerances and resultant its, page 153

173