Toothless Sprockets

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Toothless Sprockets

Part
Number
1 2 3 4 6
Type d
+0.0000
-0.0005
D
+0.000
-0.002
5
B
+.000
-.000
B1
+.000
-.010
D1
+.000
-.020
Bearing
Dynamic
Capacity
C [lbf]
74925 A 1.25 3.14 1.005 0.47 2.56 11100
SJ 74690 B 1.375 3.427 1.25 0.585 2.915 9400
SJ 74690 B 1.375 3.427 1.25 0.585 2.915 9400
SJ 74690 B 1.375 3.427 1.25 0.585 2.915 9300
SJ 74690 B 1.375 3.427 1.25 0.585 2.915 9300
74698-10 A 1.378 3.174 0.69 0.459 2.741 8200
74499-10 A 1.5748 4.057 0.906 0.575 3.493 11000
SJ 74839 B 1.75 4.305 1.5 0.692 3.641 15100
SJ 74839 SS B 1.75 4.305 1.5 0.692 3.641 13800
75060 A 1.75 3.755 1.13 0.595 3.135 16800
74990 A 1.7717 3.755 1.13 0.595 3.135 15200
74991 A 1.7717 4.005 1.13 0.72 3.135 15200
74809 A 1.7717 4.683 0.989 0.692 3.938 13900
74992 A 2.5 4.895 1.255 0.94 4.045 20000

All dimensions are in inches

For sizes not listed above, contact RBC.

  1. Part numbers SJ 74690 and SJ 74839 are without seal
  2. For part numbers SJ 74690, SJ 74690 RR, inner ring part number IR 7295C must be ordered separately.
  3. For Part number SJ 74839, inner ring part number IR 8406 H must be ordered separately.
  4. For Part number SJ 74839 SS, inner ring part number IR 7439 must be ordered separately.
  5. For part numbers SJ 74690, SJ 74690 RR, SJ 74839, and SJ 74839 SS, inner ring is 0.010 inches wider than outer ring.
  6. For part number 74992, inner ring width 1.125 inches.