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More Rules of thumb-Design
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Bearing clearances
differ by type of bearing and application. See
our chart "Clearances Chart" on the next page. APS
can work with you to suggest proper clearances. |
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Pressure fed oil provides more cooling than the slinger
ring method of lubrication. |
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Temperature rise of the oil as it goes through the bearing is a prime
consideration in controlling operating temperatures. |
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Water cooled housings provide lower operating temperatures than air cooled housings for cooling bearings.
These are typically high heat fan bearings |
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Elliptical bore bearings provide more cooling by oil
circulation and give more stability than round bore bearings. |
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Shaft deflection should be considered
in determining clearance needed. |
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In general, bearing loading will be between 75 PSI
and 250 PSI |
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When designing with the slinger ring method of lubrication,
oil viscosity and shaft speed are major considerations for
lubricating and cooling. |
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For electrically
insulated bearings, some type of "Double Housing" with insulation
between housing, or insulation on the outside diameter is usually required.
APS can test for isolation when the bearing arrives for repair and re-insulate
as necessary. |
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Babbitt Bearing Repair and Manufacturing