Bronze

At a Glance

Process

Lead Time

Finish Options

Tolerance

Price

Applications

3 days (rush)
5-7 days (standard)
Available as-machined, media blasted, or hand-polished
ISO 2768
$$$
Bearings, bushings, thrust washers

About the Material

932 Bearing Bronze is a high strength alloy with good wear and corrosion resistance due to its tin, iron, and zinc content. It is most commonly used for bearings, bushings, and thrust washers. 932 Bronze is not heat treatable.

Material Properties

932 Bronze

Yield Strength (tensile)

Elongation at Break

Hardness

Density

Maximum
Temp

McMaster Part Number

18,000 psi
10%
Rockwell B34
0.322 lbs / cu. in.
500° F

Material Finish

932 Bronze has a shiny reddish-brown finish (slightly darker than Copper), which will vary slightly based on the specified surface finish. 932 Bronze can be polished or media-blasted to change its cosmetic appearance.

Design Recommendations

Min Wall Thickness

Min End Mill Size

Min Drill Size

Max Part Size

Undercuts

Radii : Depth

0.5 mm
0.8 mm
(0.03 in)
0.5 mm
(0.02 in)
1200 x 500 x 152 mm [x,y,z] (mill) 

152 x 394 mm 
[d,h] (lathe)
Square profile, full radius, dovetail profiles
Depth must not exceed 12x drill bit diameter.
For end mills, depth must not exceed 10x tool diameter.

Cost Saving Tip

To reduce costs, limit the number of part setups, the number of inspection dimensions or tight tolerances, and deep pockets with small radii.

Related Resources

Engineer's Guide to CNC Machining for Prototyping Hardware
Fictiv CNC Material Datasheet