Powdered Metal (P/M) Bronze - Inch Flanges

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

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

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. 

Tolerances:
ID and OD tolerances are:
Up to 1-1/2: +.000 / -.001
1-1/2 to 2-1/2: +.000 /- .0015
2-1/2 to 3-1/2: +.000 / -.002
3-1/2 to 4-1/2: +.000 / -.0025
4-1/2 to 5-1/2: +.000 -.0035
5-1/2 to 6-1/2: +.000 / -.004

Lengths are:
Up to 1-1/2: +/-.005
1-1/2 to 3: +/-.0075
3 to 4-1/2: +/-.0010
4-1/2 to 6: +/-.015