R-Lube® Self-Lubricating Bearings

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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. You’ll 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.

R Lube Bearings

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