Miniature ball bearing comparison

Single row radial deep groove ball bearings with wide inner ring

Inch dimensions

d D B Bf Designation Designation Bn Dc1 Bc2 Bcf2 Bnf Li Lo r max h min Balls n x Ø Load ratings [1]
mm mm mm mm open ball bearings closed ball bearings mm mm mm mm mm mm mm mm mm mm dynamic static
inch inch inch inch RU/ULU RKU/ULKU ULUZ ULKUZ inch inch inch inch inch inch inch inch inch inch C N Co N
1.191    3.969  1.588  ULU 1505X ULKU 1505X 2.381   5.156  0.330  1.93  3.18  0.13  0.4  6 x 0.794  85 16
  .0469      .1563    .0625   .0938      .0230    .0130    .0760    .1252    .005    .016    .03125
1.397    4.763  1.984  RU 1706X RKU 1706X 2.778   5.944 0.584 2.35 3.83 0.13 0.4 6 x 1.000 138 29
  .0550      .1875    .0781   .1094     .2340  0.230    .0925    .1508    .005    .016    .0394
2.381    4.763  1.588  ULU 3006X ULKU 3006X 2.381    5.944  0.457  2.86  4.14  0.13  0.4  7 x 0.794  101 22
  .0938      .1875    .0625   .0938      .2340    .0180    .1126    .1630      .005    .016    .03125
2.381    7.938  2.778  RU 3010X RKU 3010X 3.572    9.119  0.584  4.13  6.67  0.13  0.5  6 x 1.588 351 86
  .0938      .3125    .1094   .1406      .3590    .0230    .1626    .2626    .005    .020    .0625
3.175    6.350  2.381  2.778  ULU 4008X ULKU 4008X ULUZ 400X ULKUZ 4008X 3.175    7.518  0.584  0.787  3.572  3.95  5.53  0.13  0.5  8 x 1.000 184 47
  .1250     .2500   .0938   .1094   .1250      .2960    .0230    .0310    .1406    .1555    .2177    .005    .020    .0394
3.175   7.938 2.778 RU 4010X RKU 4010X 3.572    9.119  0.584  4.13  6.67  0.13  0.5  6 x  1.588 351 86
  .1250     .3125   .1094   .1406      .3590    .0230    .1626    .2626    .005    .020    .0625
4.763   7.938 3.175 ULUZ 6010X ULKUZ 6010X   9.119  0.914  3.969  5.57  7.10  0.13  0.5  9 x 1.000 198 58
  .1875     .3125     .1250     .3590    .0360    .1563    .2193    .2795    .005    .020    .0394
4.763   9.525 3.175 3.175 ULU 6012X ULKU 6012X ULUZ 6012X ULKUZ 6012X 3.969  10.719  0.584  0.787  3.969  5.95  8.35  0.13  0.6  8 x 1.588 450 130
  .1875     .3750   .1250   .1250   .1563      .4220    .0230    .0310    .1563    .2343    .3287    .005    .024    .0625
6.350 9.525 3.175 3.175 ULU 8012X ULKU 8012X ULUZ 8012X ULKUZ 8012X 3.969  10.719  0.584  0.914  3.969  7.22  8.77  0.13  0.6  11 x 1.000 220 74
  .2500     .3750   .1250   .1250   .1563      .4220    .0230    .0360    .1563    .2843    .3453    .005    .024    .0394
6.350 12.700 4.763 ULUZ 8016X ULKUZ 8016X 13.894  1.143  5.556  7.90  11.11  0.13  0.6  8 x 2.100 726 219
  .2500     .5000   .1875     .5470    .0450    .2187    .3110      .4374    .005    .024    .0827
1 Tolerance for Dc: 0 0
-125 μm -.005”
1 Tolerance for Bc and Bcf: 0 0
-50 μm -.002”
1] myonic bearings are designed as standard for high speeds and low-friction operation. Please contact us if your application requires higher load capacities: info@myonic.com