BU Dry Lubricant Bearings METRIC Sizes
Engineered Plastic Bearings
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.
| Items |
 M0303BU BU Dry Lubricant Bearings METRIC Sizes |
M0305BU BU Dry Lubricant Bearings METRIC Sizes |
M0306BU BU Dry Lubricant Bearings METRIC Sizes |
M0404BU BU Dry Lubricant Bearings METRIC Sizes |
M0406BU BU Dry Lubricant Bearings METRIC Sizes |
|||||
| Stock Item?1 | No | No | Yes | No | Yes | |||||
| Nominal Size I.D. | 3 mm | 3 mm | 3 mm | 4 mm | 4 mm | |||||
| Nominal Size O.D. | 4.5 mm | 4.5 mm | 4.5 mm | 5.5 mm | 5.5 mm | |||||
| Recommended Housing Bore Min. | 4.5000 mm | 4.5000 mm | 4.5000 mm | 5.5000 mm | 5.5000 mm | |||||
| Recommended Housing Bore Max. | 4.5080 mm | 4.5080 mm | 4.5080 mm | 5.5080 mm | 5.5080 mm | |||||
| Recommended Shaft Size Min. | 2.9940 mm | 2.9940 mm | 2.9940 mm | 3.9920 mm | 3.9920 mm | |||||
| Recommended Shaft Size Max. | 3.0000 mm | 3.0000 mm | 3.0000 mm | 4.0000 mm | 4.0000 mm | |||||
| Length | 3 mm | 5 mm | 5 mm | 4 mm | 6 mm | |||||
| Length Tolerance | +/-0.38 mm | |||||||||
| Installed Bearing I.D. Min | 3.0000 mm | 3.0000 mm | 3.0000 mm | 4.0000 mm | 4.0000 mm | |||||
| Installed Bearing I.D. Max | 3.0480 mm | 3.0480 mm | 3.0480 mm | 4.0480 mm | 4.0480 mm | |||||
| Min. Temperature | -328 ºF | |||||||||
| Max. Temperature | 536 ºF | |||||||||
| P Value (Max.) | 36250 | |||||||||
| V Value (Max.) | 1000 | |||||||||
| PV Value (Max.) | 51000 | |||||||||
|
||||||||||
