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.
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.
| Stock Item?1 | N/A Yes |
Nominal Size I.D. |
N/A 50 mm |
Nominal Size O.D. |
N/A 55 mm |
Recommended Housing Bore Min. |
N/A 55.0000 mm |
Recommended Housing Bore Max. |
N/A 55.0300 mm |
Recommended Shaft Size Min. |
N/A 49.9500 mm |
Recommended Shaft Size Max. |
N/A 49.9750 mm |
Length |
N/A 40 mm |
Length Tolerance |
N/A +/-0.25 mm |
Installed Bearing I.D. Min |
N/A 49.9900 mm |
Installed Bearing I.D. Max |
N/A 50.1100 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.
