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Email Us Today!Plain Cast Bronze Bushings
National Bronze Manufacturing stocks an inventory of plain bronze sleeve bushings in industry standard sizes. Our standard sleeve bearings are manufactured out of continuous cast C93200 Bearing Bronze. Plain bushings are also manufactured from various other customer specified alloys.
In addition to the industry standard sizes, we manufacture sleeve bearings to your specific size and tolerance requirements. We can manufacture sleeve bushings from custom prints, specific sizes, or we can reverse engineer your sample parts.
Plain sleeve bearings are utilized in a variety of applications. Their good load carrying and anti-friction properties make them an excellent general purpose bearing.
Typical Properties |
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| Chemical Composition | 83% Cu, 7% Sn, 7% Pb, 3% Zn |
| Tensile Strength: | 44,000 PSI |
| Yield Strength | 27,000 PSI |
| Elongation, in 2" | 16% |
| Brinell Hardness | 72 |
| Equivalent Specifications | SAE 660: A.ST.M B144-52; Mil-B-16261(2), Grade VI; Fed:QQ-L-225, Comp. 12; QQ-B-691b(1) Comp. 12 |
Tolerances |
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| Inside Diameter | From Nominal Size |
| 3" or Less | ±.0010" |
| Over 3" | ±.0015" |
| Outside Diameter | |
| 3" or Less | +.002" to .003" |
| Over 3" | +.003" to .005" |
| All Lengths | ±.005" |
| Concentricity | .003" T.I.R. |
Press FitLess than normal press fit proves satisfactory:(1) if the bearing is long and the wall is not exceptionally thin, and (2) if the bearing is also carrying a moderate load exerted only in one direction. |
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ClearanceGreater than normal clearance must be allowed: (1) if exceptionally high speed is involved, (2) if higher than normal loading is encountered. |
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