Flanged bronze bushings combine a sleeve bearing with an integral flange, so the part can support radial load while the flange provides axial location or a light thrust face. They are used when the housing needs a positive shoulder, when the bearing must not walk through the bore, or when assembly space does not allow a separate thrust washer.
The standard material for many flanged bronze bearing RFQs is continuous cast C93200 / SAE 660. For high-load pivots, shock loading, or poor lubrication, the same geometry can also be machined from aluminum bronze, manganese bronze, or graphite-plugged bronze.
| Quick spec | Catalog reference |
|---|---|
| Bearing type | Flanged sleeve bushing for radial support and axial location |
| Default material | Continuous cast C93200 / SAE 660 bearing bronze |
| Typical composition | 83% copper, 7% tin, 7% lead, 3% zinc |
| Typical mechanical data | 44,000 PSI tensile, 27,000 PSI yield, Brinell hardness around 72 |
| Service temperature often listed for C93200 cast bronze | -350°F to +450°F |
| Size format | ID x OD x Length x Flange OD x Flange Thickness |
Manufacturing & Performance
Flanged bushings are machined from continuous cast bronze bar, cored bar, or near-net stock depending on size. The continuous cast structure gives the part a dense bearing surface and predictable machining behavior, while the flange gives the assembler a built-in locating shoulder.
The flange should be treated as a locating and light thrust feature unless the print clearly calls out a heavy thrust requirement. For higher thrust load, consider a larger flange face, oil grooves, a separate thrust washer, or a solid-lubricant material.
Standard Tolerances
These catalog-style tolerances are commonly published for C93200 cast bronze sleeve and flanged bearing families. Confirm final tolerances against your housing fit, shaft clearance, and flange stack-up before release.
| Nominal size | ID tolerance | OD tolerance | Length tolerance | Concentricity |
|---|---|---|---|---|
| 3.000” and under | +/- .0010” | +.002” / +.003” | +/- .005” | .003” T.I.R. |
| Over 3.000” | +/- .0015” | +.003” / +.005” | +/- .005” | .003” T.I.R. |
| Flange OD / thickness | Quote by drawing | Quote by drawing | Quote by drawing | Quote by drawing |
Size & Availability
Flanged bushings are normally specified as ID x OD x overall length, plus flange OD and flange thickness. Inch and metric sizes are available, and custom work can include grooves, holes, counterbores, chamfers, stepped ODs, and non-standard flange profiles.
For replacement parts, send the shaft size, housing bore, shoulder depth, available flange clearance, and whether the flange carries thrust load or only locates the bushing.
Alternative Alloys
- C93200 SAE 660 Bearing Bronze for standard flanged bronze bearings.
- C95400 Aluminum Bronze for higher strength and heavier radial load.
- C86300 Manganese Bronze for severe-service, low-speed pivot work.
- SAE 841 Sintered Bronze when oil-impregnated stock is preferred for light-duty flanged bearings.
Typical Applications
- Loader arms, excavator pivots, agricultural linkages, and equipment rebuilds.
- Gearboxes, conveyors, pumps, actuators, and industrial machinery.
- Hinge points and shaft supports where the bearing needs a positive shoulder.
- OEM assemblies where a separate sleeve and washer would add parts and stack-up.
RFQ Details That Speed Up Quoting
Send ID, OD, body length, flange OD, flange thickness, alloy, quantity, groove details, and any thrust-face requirements. A drawing is preferred when flange geometry or installed clearance is critical.