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Inch Standard

Miniature bearings are sometimes referred to as instrument bearings and are used in applications as varied as gyros, anemometers, flow meters, miniature gearboxes, small motors and radio controlled models. Miniature ball bearings can be open or shielded, which helps prevent dirt from entering and lubricant from leaking out, and unflanged or flanged for easier plate mounting. Some miniature ball bearing options feature extended inner rings to help fit certain locking devices when a press fit is not possible

FILTERS
  • ID
    0.09375"(1)
    0.125"(29)
  • OD
    0.1875"(1)
    0.25"(6)
    0.3125"(6)
    0.375"(11)
    0.5"(6)
  • Width
    0.0937"(3)
    0.1094"(8)
    0.1406"(8)
    0.1562"(5)
    0.1719"(6)
  • Static Load
    107 lbf(3)
    109 lbf(2)
    110 lbf(6)
    121 lbf(3)
    122 lbf(6)
    25 lbf(1)
    49 lbf(3)
    54 lbf(3)
    96 lbf(3)
Part NumberRing MaterialIDODWidthShield TypeDynamic LoadStatic LoadLimited Speed(x1K rpm)
R2zz 52100 Chrome Steel 0.125" 0.375" 0.1562" Shielded 121 lbf 39 lbf 56
SR2Azz 440C Stainless Steel 0.125" 0.5" 0.1719" Shielded 110 lbf 37 lbf 47.7
R2Azz 52100 Chrome Steel 0.125" 0.5" 0.1719" Shielded 122 lbf 41 lbf 53
SR2A 2rs 440C Stainless Steel 0.125" 0.5" 0.1719" Sealed 110 lbf 37 lbf 47.7
R2A 2rs 52100 Chrome Steel 0.125" 0.5" 0.1719" Sealed 122 lbf 41 lbf 53
SR2A 440C Stainless Steel 0.125" 0.5" 0.1719" Open 110 lbf 37 lbf 47.7
R2A 52100 Chrome Steel 0.125" 0.5" 0.1719" Open 122 lbf 41 lbf 53
SR2-6zz 440C Stainless Steel 0.125" 0.375" 0.1406" Shielded 110 lbf 37 lbf 47.7
R2-6zz 52100 Chrome Steel 0.125" 0.375" 0.1406" Shielded 122 lbf 41 lbf 53
SR2-6 2rs 440C Stainless Steel 0.125" 0.375" 0.1406" Sealed 110 lbf 37 lbf 47.7
R2-6 2rs 52100 Chrome Steel 0.125" 0.375" 0.1406" Sealed 122 lbf 41 lbf 53
SR2-6 440C Stainless Steel 0.125" 0.375" 0.1094" Open 110 lbf 37 lbf 47.7
R2-6 52100 Chrome Steel 0.125" 0.375" 0.1094" Open 122 lbf 41 lbf 53
SR2-5zz 440C Stainless Steel 0.125" 0.3125" 0.1406" Shielded 96 lbf 29 lbf 54
R2-5zz 52100 Chrome Steel 0.125" 0.3125" 0.1406" Shielded 107 lbf 32 lbf 60
SR2-5 2rs 440C Stainless Steel 0.125" 0.3125" 0.1406" Sealed 96 lbf 29 lbf 54
R2-5 2rs 52100 Chrome Steel 0.125" 0.3125" 0.1406" Sealed 107 lbf 32 lbf 60
SR2-5 440C Stainless Steel 0.125" 0.3125" 0.1094" Open 96 lbf 29 lbf 54
R2-5 52100 Chrome Steel 0.125" 0.3125" 0.1094" Open 107 lbf 32 lbf 60
SR2 2rs 440C Stainless Steel 0.125" 0.375" 0.1562" Sealed 109 lbf 35 lbf 50.4
R2 2rs 52100 Chrome Steel 0.125" 0.375" 0.1562" Sealed 121 lbf 39 lbf 56
SR2 440C Stainless Steel 0.125" 0.375" 0.1562" Open 109 lbf 35 lbf 50.4
R2 52100 Chrome Steel 0.125" 0.375" 0.1562" Open 121 lbf 39 lbf 56
SR144zz 440C Stainless Steel 0.125" 0.25" 0.1094" Shielded 49 lbf 15 lbf 60.3
R144zz 52100 Chrome Steel 0.125" 0.25" 0.1094" Shielded 54 lbf 17 lbf 67
SR144 2rs 440C Stainless Steel 0.125" 0.25" 0.1094" Sealed 49 lbf 15 lbf 60.3
R144 2rs 52100 Chrome Steel 0.125" 0.25" 0.1094" Sealed 54 lbf 17 lbf 67
SR144 440C Stainless Steel 0.125" 0.25" 0.0937" Open 49 lbf 15 lbf 60.3
R144 52100 Chrome Steel 0.125" 0.25" 0.0937" Open 54 lbf 17 lbf 67
SR133zz 440C Stainless Steel 0.09375" 0.1875" 0.0937" Shielded 25 lbf 9 lbf 72
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