|
Operating conditions |
Assembly conditions |
Housing |
Examples of mounting |
Tolerance |
|
circumferential loading of outer ring |
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high shock loading |
outer ring is not sliding |
one-part |
wheel hubs, connecting rod bearing |
P7 |
|
ordinary and high loading |
pulleys, bearing of crankshafts |
N7 |
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small and variable load |
transport and tightening pulleys |
M7 |
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indeterminate way of load |
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high shock load |
outer ring non-sliding |
one-part |
traction motors |
M7 |
|
high and ordinary load |
outer ring non-sliding from the right |
pump electrical motors, crankshafts |
K7 |
|
|
ordinary and small load |
outer ring sliding from the right |
pump electrical motors, fans |
J7 |
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|
precision mountings |
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|
ordinary and small loading |
outer ring non-slid. from the right, outer ring sliding, outer ring easily sliding |
one-part |
bearings for cutting machines |
K6 |
|
ball bearing for grinding spindles |
J6 |
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small electric motors |
H6 |
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|
point loading of outer ring |
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|
high ordinary and small loading |
outer ring is easily sliding |
1-2 parts |
common machinery, axle bear. |
H8 |
|
two parts |
transmission shaftings |
H8 |
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|
heat supply through shaft |
1 - 2 parts |
great electrical motors with spherical roller bearings |
G7 |
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