Bunting Bearings, LLC
Bunting Bearings, LLC
1001 Holland Park Blvd.
Holland, OH 43528
Phone: 419.866.7000
Fax: 419.866.0653
E-Mail: bunting@buntingbearings.com
Website: www.buntingbearings.com
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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 life of the bearing.

Bunting’s “BU” is available, from stock, in the form of wrapped bearings in both inch and metric sizes. Thrust washers, strip material and non-standard bearing sizes are also available.

Temperature range: -328°F/+536°F

WARNING: This product can expose you to chemicals including Nickel, Lead & Tetrafluoroethylene which is known to the state of California to cause cancer. Lead and Nickel which are known to the state of California to cause birth defects or other reproductive harm. For more information, go to www.p65warnings.ca.gov.
Unit of Measure

Specifications

Stock Item?1 N/A Yes

Nominal Size I.D.

 N/A 4 mm

Nominal Size O.D.

 N/A 5.5 mm

Recommended Housing Bore Min.

 N/A 5.5000 mm

Recommended Housing Bore Max.

 N/A 5.5080 mm

Recommended Shaft Size Min.

 N/A 3.9920 mm

Recommended Shaft Size Max.

 N/A 4.0000 mm

Length

 N/A 6 mm

Length Tolerance

 N/A +/-0.38 mm

Installed Bearing I.D. Min

 N/A 4.0000 mm

Installed Bearing I.D. Max

 N/A 4.0480 mm

Min. Temperature

 N/A -328 ºF

Max. Temperature

 N/A 536 ºF

P Value (Max.)

 N/A 36250

V Value (Max.)

 N/A 1000

PV Value (Max.)

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