Inch Single Row Radial Ball Bearing Return
  Bore O.D. Width r Basic Load Rating(Kg) Weight
Type Fraction Inches mm Fraction Inches mm Fraction Inches mm Inches Dynamic Static (Kg)
77R- 3/99R- 3 3/16 0.1875 4.763 1/2 0.5000 12.700   0.1960 4.978 0.012 133 50 0.005
R- 3 OPEN 3/16 0.1875 4.763 1/2 0.5000 12.700 5/32 0.1562 3.967 0.012 133 50 0.004
77R- 4/99R- 4 1/4 0.2500 6.350 5/8 0.6250 15.875   0.1960 4.978 0.012 151 57 0.007
77R- 4A/99R- 4A 1/4 0.2500 6.350 3/4 0.7500 19.050 9/32 0.2812 7.142 0.016 287 118 0.008
77R- 6/99R- 6 3/8 0.3750 9.525 7/8 0.8750 22.225 9/32 0.2812 7.142 0.016 339 138 0.011
77R- 8/99R- 8 1/2 0.5000 12.700 1 1/8 1.1250 28.575 5/16 0.3125 7.938 0.016 521 227 0.022
77R-10/99R-10 5/8 0.6250 15.875 1 3/8 1.3750 34.925 11/32 0.3438 8.733 0.031 612 284 0.036
77R-12/99R-12 3/4 0.7500 19.050 1 5/8 1.6250 41.275 7/16 0.4375 11.113 0.031 957 454 0.055
77R-14/99R-14 7/8 0.8750 22.225 1 7/8 1.8750 47.625 1/2 0.5000 12.700 0.031 1027 504 0.088
77R-16/99R-16 1 1.0000 25.400 2 2.0000 50.800 1/2 0.5000 12.700 0.031 1024 504 0.096
77R-18/99R-18 1 1/8 1.1250 28.575 2 1/8 2.1250 53.975 1/2 0.5000 12.700 0.031 1349 702 0.100
77R-20/99R-20 1 1/4 1.2500 31.750 2 1/4 2.2500 57.150 1/2 0.5000 12.700 0.031 1427 766 0.116
77R-24/99R-24 1 1/2 1.5000 38.100 2 5/8 2.6250 66.675 9/16 0.5625 14.288 0.039 1709 945 0.170
EE- 2 1/4 0.2500 6.350 3/4 0.7500 19.050 7/32 0.2188 5.556 0.016 287 118 0.007
EE- 3 3/8 0.3750 9.525 7/8 0.8750 22.225 7/32 0.2188 5.556 0.016 339 138 0.009
EE- 4 1/2 0.5000 12.700 1 1/8 1.1250 28.575 1/4 0.2500 6.350 0.016 521 227 0.018
EE- 5 5/8 0.6250 15.875 1 3/8 1.3750 34.925 9/32 0.2813 7.144 0.031 612 284 0.030
EE- 6 3/4 0.7500 19.050 1 5/8 1.6250 41.275 5/16 0.3125 7.938 0.031 957 454 0.046
EE- 7 3/4 0.7500 19.050 1 3/4 1.7500 44.450 3/8 0.3750 9.525 0.031 957 454 0.068
EE- 8 7/8 0.8750 22.225 1 7/8 1.8750 47.625 3/8 0.3750 9.525 0.031 1027 504 0.073
EE- 9 1 1.0000 25.400 2 2.0000 50.800 3/8 0.3750 9.525 0.031 1024 504 0.080
EE-10 1 1/8 1.1250 28.575 2 1/8 2.1250 53.975 3/8 0.3750 9.525 0.031 1349 702 0.084
EE-11 1 1/4 1.2500 31.750 2 1/4 2.2500 57.150 3/8 0.3750 9.525 0.031 1427 766 0.097
RLS- 4 1/2 0.5000 12.700 1 5/16 1.3125 33.338 3/8 0.3750 9.525 0.031 693 310 0.040
RLS- 5 5/8 0.6250 15.875 1 9/16 1.5625 39.688 7/16 0.4375 11.1125 0.031 975 455 0.062
RLS- 6 3/4 0.7500 19.050 1 7/8 1.8750 47.625 9/16 0.5625 14.2875 0.059 1309 630 0.114
RLS- 7 7/8 0.8750 22.225 2 2.0000 50.800 9/16 0.5625 14.2875 0.059 1322 630 0.140
RLS- 8 1 1.0000 25.400 2 1/4 2.2500 57.150 5/8 0.6250 15.875 0.059 1349 702 0.182
RLS- 9 1 1/8 1.1250 28.575 2 1/2 2.5000 63.500 5/8 0.6250 15.875 0.059 1986 1021 0.218
RLS-10 1 1/4 1.2500 31.750 2 3/4 2.7500 69.850 11/16 0.6875 17.4625 0.059 1987 1021 0.294
RLS-11 1 3/8 1.3750 34.925 3 3.0000 76.200 11/16 0.6875 17.4625 0.079 2619 1389 0.361
RLS-12 1 1/2 1.5000 38.100 3 1/4 3.2500 82.550 3/4 0.7500 19.05 0.098 2969 1595 0.451