BU Dry Lubricant Bearings METRIC Sizes On Bunting Bearings and Bronze LLC

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.

Item #	Stock Item?	Nom Size I.D.	Nom Size O.D.	Recommended Housing Bore Min.	Recommended Housing Bore Max.	Recommended Shaft Size Min.	Length	CAD	Add To Cart/Request Quote

M2515BU	N/A Yes	N/A 25 mm	N/A 28 mm	N/A 28.0000 mm	N/A 28.0210 mm	N/A 24.9590 mm	N/A 15 mm	N/A	Add To Cart Request Quote
M2520BU	N/A Yes	N/A 25 mm	N/A 28 mm	N/A 28.0000 mm	N/A 28.0210 mm	N/A 24.9590 mm	N/A 20 mm	N/A	Add To Cart Request Quote
M2525BU	N/A Yes	N/A 25 mm	N/A 28 mm	N/A 28.0000 mm	N/A 28.0210 mm	N/A 24.9590 mm	N/A 25 mm	N/A	Add To Cart Request Quote
M2530BU	N/A Yes	N/A 25 mm	N/A 28 mm	N/A 28.0000 mm	N/A 28.0210 mm	N/A 24.9590 mm	N/A 30 mm	N/A	Add To Cart Request Quote
M2550BU	N/A Yes	N/A 25 mm	N/A 28 mm	N/A 28.0000 mm	N/A 28.0210 mm	N/A 24.9590 mm	N/A 50 mm	N/A	Add To Cart Request Quote
M2820BU	N/A Yes	N/A 28 mm	N/A 32 mm	N/A 32.0000 mm	N/A 32.0250 mm	N/A 27.9590 mm	N/A 20 mm	N/A	Add To Cart Request Quote
M2830BU	N/A Yes	N/A 28 mm	N/A 32 mm	N/A 32.0000 mm	N/A 32.0250 mm	N/A 27.9590 mm	N/A 30 mm	N/A	Add To Cart Request Quote
M3020BU	N/A Yes	N/A 30 mm	N/A 34 mm	N/A 34.0000 mm	N/A 34.0250 mm	N/A 29.9590 mm	N/A 20 mm	N/A	Add To Cart Request Quote
M3025BU	N/A Yes	N/A 30 mm	N/A 34 mm	N/A 34.0000 mm	N/A 34.0250 mm	N/A 29.9590 mm	N/A 25 mm	N/A	Add To Cart Request Quote
M3030BU	N/A Yes	N/A 30 mm	N/A 34 mm	N/A 34.0000 mm	N/A 34.0250 mm	N/A 29.9590 mm	N/A 30 mm	N/A	Add To Cart Request Quote
M3040BU	N/A Yes	N/A 30 mm	N/A 34 mm	N/A 34.0000 mm	N/A 34.0250 mm	N/A 29.9590 mm	N/A 40 mm	N/A	Add To Cart Request Quote
M3240BU	N/A Yes	N/A 32 mm	N/A 36 mm	N/A 36.0000 mm	N/A 36.0250 mm	N/A 31.9500 mm	N/A 40 mm	N/A	Add To Cart Request Quote
M3520BU	N/A Yes	N/A 35 mm	N/A 39 mm	N/A 39.0000 mm	N/A 39.0250 mm	N/A 34.9500 mm	N/A 20 mm	N/A	Add To Cart Request Quote
M3530BU	N/A Yes	N/A 35 mm	N/A 39 mm	N/A 39.0000 mm	N/A 39.0250 mm	N/A 34.9500 mm	N/A 30 mm	N/A	Add To Cart Request Quote
M3550BU	N/A Yes	N/A 35 mm	N/A 39 mm	N/A 39.0000 mm	N/A 39.0250 mm	N/A 34.9500 mm	N/A 50 mm	N/A	Add To Cart Request Quote
M4020BU	N/A Yes	N/A 40 mm	N/A 44 mm	N/A 44.0000 mm	N/A 44.0250 mm	N/A 39.9500 mm	N/A 20 mm	N/A	Add To Cart Request Quote
M4030BU	N/A Yes	N/A 40 mm	N/A 44 mm	N/A 44.0000 mm	N/A 44.0250 mm	N/A 39.9500 mm	N/A 30 mm	N/A	Add To Cart Request Quote
M4040BU	N/A Yes	N/A 40 mm	N/A 44 mm	N/A 44.0000 mm	N/A 44.0250 mm	N/A 39.9500 mm	N/A 40 mm	N/A	Add To Cart Request Quote
M4050BU	N/A Yes	N/A 40 mm	N/A 44 mm	N/A 44.0000 mm	N/A 44.0250 mm	N/A 39.9500 mm	N/A 50 mm	N/A	Add To Cart Request Quote
M4530BU	N/A Yes	N/A 45 mm	N/A 50 mm	N/A 50.0000 mm	N/A 50.0250 mm	N/A 44.9500 mm	N/A 30 mm	N/A	Add To Cart Request Quote
M4550BU	N/A Yes	N/A 45 mm	N/A 50 mm	N/A 50.0000 mm	N/A 50.0250 mm	N/A 44.9500 mm	N/A 50 mm	N/A	Add To Cart Request Quote
M5040BU	N/A Yes	N/A 50 mm	N/A 55 mm	N/A 55.0000 mm	N/A 55.0300 mm	N/A 49.9500 mm	N/A 40 mm	N/A	Add To Cart Request Quote
M5060BU	N/A Yes	N/A 50 mm	N/A 55 mm	N/A 55.0000 mm	N/A 55.0300 mm	N/A 49.9500 mm	N/A 60 mm	N/A	Add To Cart Request Quote

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