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.
BU Dry Lubricant Bearings Inch Sizes
Unit of Measure
Items BU Dry Lubricant Bearings Inch Sizes
02BU03
BU Dry Lubricant Bearings Inch Sizes 		BU Dry Lubricant Bearings Inch Sizes
03BU03
BU Dry Lubricant Bearings Inch Sizes 		BU Dry Lubricant Bearings Inch Sizes
03BU04
BU Dry Lubricant Bearings Inch Sizes 		BU Dry Lubricant Bearings Inch Sizes
03BU08
BU Dry Lubricant Bearings Inch Sizes 		BU Dry Lubricant Bearings Inch Sizes
04BU04
BU Dry Lubricant Bearings Inch Sizes
Stock Item?1 N/A Yes
Nominal Size I.D. N/A 1/8 in N/A 3/16 in N/A 3/16 in N/A 3/16 in N/A 1/4 in
Nominal Size O.D. N/A 3/16 in N/A 1/4 in N/A 1/4 in N/A 1/4 in N/A 5/16 in
Recommended Housing Bore Min. N/A 0.1873 in N/A 0.2497 in N/A 0.2497 in N/A 0.2497 in N/A 0.3122 in
Recommended Housing Bore Max. N/A 0.1875 in N/A 0.2503 in N/A 0.2503 in N/A 0.2503 in N/A 0.3128 in
Recommended Shaft Size Min. N/A 0.1236 in N/A 0.1858 in N/A 0.1858 in N/A 0.1858 in N/A 0.2481 in
Recommended Shaft Size Max. N/A 0.1243 in N/A 0.1865 in N/A 0.1865 in N/A 0.1865 in N/A 0.2490 in
Length N/A 3/16 in N/A 3/16 in N/A 1/4 in N/A 1/2 in N/A 1/4 in
Length Tolerance N/A +/-0.015 in
Installed Bearing I.D. Min. N/A 0.1243 in N/A 0.1867 in N/A 0.1867 in N/A 0.1867 in N/A 0.2492 in
Installed Bearing I.D. Max. N/A 0.1268 in N/A 0.1893 in N/A 0.1893 in N/A 0.1893 in N/A 0.2518 in
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.