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R-Lube® Self-Lubricating Bearings

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R-Lube® (SAE 841) powdered metal bearings are ideal for applications that call for wear-resistant components. Self-lubricating powdered metal 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 in temperatures ranging from 10º F to 220º F. All R-Lube® bearings conform to ASTM standards. Reliable Bronze has an extensive inventory of over 1400 sizes.

R-Lube® Sleeve Bearing Maintenance Kit

Reliable Bronze & Mfg., Inc. offers an R-Lube® sleeve bearing maintenance kit. This handy 45-piece assortment includes thirteen of the most popular bearing sizes. 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.
Chemical Composition
Copper
86.3 - 90.5%
Iron
1%
Tin
9.5 - 10.5%
Carbon
1.7%
Other elements
5%

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

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 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

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