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Bunting “BU” Dry Lubricant
Bearings

Bunting’s “BU” product is a composite material, consisting of bonded layers of a steel backing and a porous bronze matrix, impregnated and overlaid with PTFE bearing material. The steel backing provides mechanical strength and the bronze inter-layer, impregnated with PTFE, provides a strong mechanical bond for the lining. During normal operation, a thin film from the PTFE lining is transferred to the opposing surface and maintained there throughout the working
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Unit of Measure

Specifications

Stock Item?1 Yes

Nominal Size I.D.

1 in

Nominal Size O.D.

1 1/8 in

Recommended Housing Bore Min.

1.1247 in

Recommended Housing Bore Max.

1.1255 in

Recommended Shaft Size Min.

0.9979 in

Recommended Shaft Size Max.

0.9991 in

Length

1 in

Length Tolerance

+/-0.010 in

Installed Bearing I.D. Min.

0.9993 in

Installed Bearing I.D. Max.

1.0025 in

Min. Temperature

-328 ºF

Max. Temperature

536 ºF

P Value (Max.)

36250

V Value (Max.)

1000

PV Value (Max.)

51000
  • 1 Minimum quantities may apply to non-stock items, please contact customer service for more information.