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SCHATZ Precision Ball Bearings & Specialty Ball Bearings

R Series

precision

Inch Boundary Precision Ball Bearings

  • Inch boundary dimensions
  • Single row radial ball bearing
  • Deep groove ball bearing
  • Non-filling slot bearings

Tolerances shown below are ABEC 1. Also available in ABEC 3, ABEC 5, and ABEC 7.

(Click on Bearing Part Number to get 2D/3D CAD files from VirtualCAD)
Bearing
Part
Number
Bore
Outside Diameter
Width C (in.)
Tolerance
+.000 to -.005
Corner Radius
Balls
Basic Dynamic Radial Load Rating

Cr
(lbs) †

d
(in.)
Tolerance +.0000 to Minus
D
(in.)
Tolerance +.0000 to Minus
Open
Shielded or Sealed
R*
(in.)
No.
Size
R2
0.1250
0.0003
0.3750
0.0004
0.1562
0.1562
0.012
7
1/16
140
R2A
0.1250
0.0003
0.5000
0.0004
0.1719
0.1719
0.012
7
1/16
140
R3
0.1875
0.0003
0.5000
0.0004
0.1562
0.1960
0.012
7
3/32
290
R4
0.2500
0.0003
0.6250
0.0004
0.1960
0.1960
0.012
7
1/8
480
R4A
0.2500
0.0003
0.7500
0.0004
0.2188
0.2812
0.016
6
5/32
630
R6
0.3750
0.0003
0.8750
0.0004
0.2188
0.2812
0.016
7
5/32
820
R8
0.5000
0.0003
1.1250
0.0004
0.2500
0.3125
0.016
8
3/16
1140
R10
0.6250
0.0003
1.3750
0.0005
0.2812
0.3438
0.031
8
7/32
1520
R12
0.7500
0.0004
1.6250
0.0005
0.3125
0.4375
0.031
9
1/4
2090
R14
0.8750
0.0004
1.8750
0.0005
0.3750
0.5000
0.031
9
9/32
2590
R16
1.0000
0.0004
2.0000
0.0005
0.3750
0.5000
0.031
10
9/32
2780
R18
1.1250
0.0004
2.1250
0.0005
0.3750
0.5000
0.031
11
9/32
2960
R20
1.2500
0.0005
2.2500
0.0005
0.3750
0.5000
0.031
12
9/32
3120
R22
1.3750
0.0005
2.5000
0.0005
0.4375
0.5625
0.031
11
5/16
3560
R24
1.5000
0.0005
2.6250
0.0005
0.4375
0.5625
0.031
12
5/16
3750
(Click on Bearing Part Number to get 2D/3D CAD files from VirtualCAD)
Bearing
Part
Number
Bore Outside Diameter Width C (in.)
Tolerance
+.000 to -.005
Corner Radius Balls Basic Dynamic Radial Load Rating

Cr
(lbs) †

d
(in.)
Tolerance +.0000 to Minus D
(in.)
Tolerance +.0000 to Minus Open Shielded or Sealed R*
(in.)
No. Size
R2 0.1250 0.0003 0.3750 0.0004 0.1562 0.1562 0.012 7 1/16 140
R2A 0.1250 0.0003 0.5000 0.0004 0.1719 0.1719 0.012 7 1/16 140
R3 0.1875 0.0003 0.5000 0.0004 0.1562 0.1960 0.012 7 3/32 290
R4 0.2500 0.0003 0.6250 0.0004 0.1960 0.1960 0.012 7 1/8 480
R4A 0.2500 0.0003 0.7500 0.0004 0.2188 0.2812 0.016 6 5/32 630
R6 0.3750 0.0003 0.8750 0.0004 0.2188 0.2812 0.016 7 5/32 820
R8 0.5000 0.0003 1.1250 0.0004 0.2500 0.3125 0.016 8 3/16 1140
R10 0.6250 0.0003 1.3750 0.0005 0.2812 0.3438 0.031 8 7/32 1520
R12 0.7500 0.0004 1.6250 0.0005 0.3125 0.4375 0.031 9 1/4 2090
R14 0.8750 0.0004 1.8750 0.0005 0.3750 0.5000 0.031 9 9/32 2590
R16 1.0000 0.0004 2.0000 0.0005 0.3750 0.5000 0.031 10 9/32 2780
R18 1.1250 0.0004 2.1250 0.0005 0.3750 0.5000 0.031 11 9/32 2960
R20 1.2500 0.0005 2.2500 0.0005 0.3750 0.5000 0.031 12 9/32 3120
R22 1.3750 0.0005 2.5000 0.0005 0.4375 0.5625 0.031 11 5/16 3560
R24 1.5000 0.0005 2.6250 0.0005 0.4375 0.5625 0.031 12 5/16 3750

† Refer to the Technical Info section for Bearing Life Calculations.

* Maximum shaft or housing fillet which bearing corner will clear.

Notes:

  1. Available with shields or seals.
  2. Contact Schatz Bearing Corporation’s Engineering Department for further technical information.
  3. Check with Schatz Bearing Corporation’s Sales Department for price and availability.


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