R-Lube® (SAE 841) powdered metal bearings are ideal for applications that call for completely wear-resistant components. Self-lubricating P/M bearings are made by blending powders, shaping the mixture to a required size, and heating it to bond the particles in order to obtain the desired properties. The next step is to size the part, which involves putting it back into a die similar to the one originally used to press it. Finally, the bearing is then oil-impregnated for lubrication or corrosive resistance. Standard R-Lube® sizes operate satisfactorily in temperatures ranging from 10º F to 220º F. All R-Lube® bearings conform to ASTM standards. In our inventory, we carry over 1400 sizes of P/M bearings.
R-Lube® Sleeve Bearing Maintenance Kit
We also offer an R-Lube® sleeve bearing maintenance kit. This handy 45-piece assortment includes thirteen of the most popular bearing sizes. Youll find yourself reaching for them time and time again. Sizes range from 1/4" I.D. x 5/16" O.D. to 1" I.D. x 1 1/4 O.D., in lengths from 3/4" to 2 7/8". A reference chart is included for easy identification. This kit is housed in a conveniently compartmentalized plastic box.
Typical Applications:
Bearings - Bushings - Washers - Machining blanks
Physical properties:
Density Gms per cm3 | 6.4 - 6.8 |
Porosity % by Volume | 18 min - 20 max. |
Tensile Strength P.S.I. | |
---|---|
As Sintered | 14,000 |
Modulus of Rupture P.S.I. | 26,500 |
Elongation % in 1" | 1 |
Yield Strength | 11,000 |
Chemical Composition:
Copper | 86.3 - 90.5% |
Iron | 1% |
Tin | 9.5 - 10.5% |
Carbon | 1.7% |
Other elements | 5% |
Material Tolerances:
Plain and Flange Bearings
Inside and Outside diameters
OVER | UP TO & INCL. | SAE 841 | |
---|---|---|---|
- | 1/2 | +.000 | -.001 |
1/2 | 1 | +.000 | -.001 |
1 | 1 1/2 | +.000 | -.001 |
1 1/2 | 2 1/2 | +.000 | -.0015 |
2 1/2 | 3 1/2 | +.000 | -.002 |
3 1/2 | 4 1/2 | +.000 | -.0025 |
4 1/2 | 5 1/2 | +.000 | -.0035 |
5 1/2 | 6 1/2 | +.000 | -.004 |
Length
OVER | UP TO & INCL. | SAE 841 |
---|---|---|
- | 1 1/2 | ± .005 |
1 1/2 | 3 | ±.0075 |
3 | 4 1/2 | ±.010 |
4 1/2 | 6 | ±.015 |
Flange Diameter (Based on Flange O.D.)
OVER | UP TO & INCL. | SAE 841 |
---|---|---|
- | 1 1/4 | ±.005 |
1 1/4 | 2 1/2 | ±.010 |
2 1/2 | 4 | ±.015 |
4 | 6 | ±.025 |
Flange Thickness (Based on Flange O.D.)
OVER | UP TO & INCL. | SAE 841 |
---|---|---|
- | 1 1/4 | ±.0025 |
1 1/4 | 2 1/2 | ±.005 |
Flange Fillets, Radii
OVER | UP TO & INCL. | SAE 841 |
---|---|---|
- | 1 | ±.010 (1/32) |
1 | 2 | ±.010 (3/64) |
2 | 2 1/2 | ±.010 (1/16) |
2 1/2 | 4 | 3/32 ± 1/64 |
4 | 6 | 1/8 ± 1/64 |
CONCENTRICITY, ID with respect to OD
(Maximum Total Dial Indicator Reading)
BASED ON ID:
OVER | UP TO & INCL. | SAE 841 |
---|---|---|
- | 1 | .003 |
1 | 1 1/2 | .003 |
1 1/2 | 3 | .004 |
3 | 4 1/2 | .005 |
4 1/2 | 6 | .006 |
PHYSICAL PROPERTIES:
Thrust Bearings
Diameter
OVER | UP TO & INCL. | SAE 841 |
---|---|---|
- | 1 1/4 | ±.005 |
1 1/4 | 2 1/2 | ±.010 |
2 1/2 | 4 | ±.015 |
4 | 6 | ±.020 |
Outside Diameter
OVER | UP TO & INCL. | SAE 841 |
---|---|---|
- | 1 1/2 | ±.010 |
1 1/2 | 3 | ±.015 |
3 | 4 1/2 | ±.020 |
4 1/2 | 6 | ±.025 |
Thickness | SAE 841 |
±.0025 |
Parallelism of Faces
OVER | UP TO & INCL. | SAE 841 |
---|---|---|
- | 1 1/2 | .002 |
1 1/2 | 3 1/2 | .003 |
3 1/2 | 6 | .004 |