Powdered Metal (P/M) Bronze - Inch Washers

Inch Washers / Thrust Bearings

P/M bronze stock items are manufactured of pressed copper and tin powders and impregnated with lubricating oil. They are intended by design to be self lubricating, maintenance free and low cost. 

Select Inner Diameter (ID) below to see available stock parts
or for modifications to stock parts call for custom quote 1-800-969-2721

1/4" 1/2" 7/8" 1-1/4" 1-9/16" 2"
5/16" 9/16" 1" 1-3/8" 1-3/4" 2-1/2"
3/8" 5/8" 1-1/16" 1-1/2" 1-15/16" 2-3/4"
7/16" 3/4" 1-1/8"      

Standard material specifications include: SAE 841, ASTMB 438 Grade 1 Type II, CuSn 6-6-3, Sint B 50 

Standard impregnating oil conforms to SAE 30 specifications but product is also regularly supplied with special oils such as Mil-L-6085, Mil-L-17731. 

Sizes can also be manufactured in the powdered metal copper/iron alloy, SAE863. Please contact us for pricing and lead times.

For those special applications, we also manufacture ultra precision miniature P/M bronze bearings. These miniature bearings are precision machined to sizes as small as .040”/1mm diameter with tolerances as tight as .0002”/.005mm.

Modifications to stock parts call for custom quote 1-800-969-2721