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Inch Flanged

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
    XZBRG Inch Flanged bearing dimension diagram
    0.125" (3.1750 mm)(22)
    0.15625" (3.9688 mm)(6)
    0.1875" (4.7625 mm)(2)
  • OD
    0.25" (6.3500 mm)(4)
    0.3125" (7.9375 mm)(14)
    0.375" (9.5250 mm)(12)
  • Width
    0.1094" (2.7788 mm)(12)
    0.125" (3.1750 mm)(4)
    0.1406" (3.5712 mm)(8)
    0.1562" (3.9675 mm)(6)
  • Static Load
    0.023" (0.5842 mm)(8)
    0.030" (0.7620 mm)(6)
    0.031" (0.7874 mm)(12)
    0.036" (0.9144 mm)(4)
Part NumberRing MaterialIDODWidthFlange ODFlange WidthSeal TypeDynamic Load
FR144 2rs 52100 Chrome Steel 0.125" (3.1750 mm) 0.25" (6.3500 mm) 0.1094" (2.7788 mm) 0.296" (7.5184 mm) 0.031" (0.7874 mm) Sealed 54 lbf
SFR144 2rs 440C Stainless Steel 0.125" (3.1750 mm) 0.25" (6.3500 mm) 0.1094" (2.7788 mm) 0.296" (7.5184 mm) 0.031" (0.7874 mm) Sealed 49 lbf
FR144zz 52100 Chrome Steel 0.125" (3.1750 mm) 0.25" (6.3500 mm) 0.1094" (2.7788 mm) 0.296" (7.5184 mm) 0.031" (0.7874 mm) Shielded 54 lbf
SFR144zz 440C Stainless Steel 0.125" (3.1750 mm) 0.25" (6.3500 mm) 0.1094" (2.7788 mm) 0.296" (7.5184 mm) 0.031" (0.7874 mm) Shielded 49 lbf
FR2 52100 Chrome Steel 0.125" (3.1750 mm) 0.375" (9.5250 mm) 0.1562" (3.9675 mm) 0.44" (11.1760 mm) 0.030" (0.7620 mm) Open 121 lbf
SFR2 440C Stainless Steel 0.125" (3.1750 mm) 0.375" (9.5250 mm) 0.1562" (3.9675 mm) 0.44" (11.1760 mm) 0.030" (0.7620 mm) Open 109 lbf
FR2 2rs 52100 Chrome Steel 0.125" (3.1750 mm) 0.375" (9.5250 mm) 0.1562" (3.9675 mm) 0.44" (11.1760 mm) 0.030" (0.7620 mm) Sealed 121 lbf
SFR2 2rs 440C Stainless Steel 0.125" (3.1750 mm) 0.375" (9.5250 mm) 0.1562" (3.9675 mm) 0.44" (11.1760 mm) 0.030" (0.7620 mm) Sealed 109 lbf
FR2-5 52100 Chrome Steel 0.125" (3.1750 mm) 0.3125" (7.9375 mm) 0.1094" (2.7788 mm) 0.359" (9.1186 mm) 0.023" (0.5842 mm) Open 107 lbf
SFR2-5 440C Stainless Steel 0.125" (3.1750 mm) 0.3125" (7.9375 mm) 0.1094" (2.7788 mm) 0.359" (9.1186 mm) 0.023" (0.5842 mm) Open 96 lbf
FR2-5 2rs 52100 Chrome Steel 0.125" (3.1750 mm) 0.3125" (7.9375 mm) 0.1406" (3.5712 mm) 0.359" (9.1186 mm) 0.031" (0.7874 mm) Sealed 107 lbf
SFR2-5 2rs 440C Stainless Steel 0.125" (3.1750 mm) 0.3125" (7.9375 mm) 0.1406" (3.5712 mm) 0.359" (9.1186 mm) 0.031" (0.7874 mm) Sealed 96 lbf
FR2-5zz 52100 Chrome Steel 0.125" (3.1750 mm) 0.3125" (7.9375 mm) 0.1406" (3.5712 mm) 0.359" (9.1186 mm) 0.031" (0.7874 mm) Shielded 107 lbf
SFR2-5zz 440C Stainless Steel 0.125" (3.1750 mm) 0.3125" (7.9375 mm) 0.1406" (3.5712 mm) 0.359" (9.1186 mm) 0.031" (0.7874 mm) Shielded 96 lbf
FR2-6 52100 Chrome Steel 0.125" (3.1750 mm) 0.375" (9.5250 mm) 0.1094" (2.7788 mm) 0.422" (10.7188 mm) 0.023" (0.5842 mm) Open 122 lbf
SFR2-6 440C Stainless Steel 0.125" (3.1750 mm) 0.375" (9.5250 mm) 0.1094" (2.7788 mm) 0.422" (10.7188 mm) 0.023" (0.5842 mm) Open 110 lbf
FR2-6 2rs 52100 Chrome Steel 0.125" (3.1750 mm) 0.375" (9.5250 mm) 0.1406" (3.5712 mm) 0.422" (10.7188 mm) 0.031" (0.7874 mm) Sealed 122 lbf
SFR2-6 2rs 440C Stainless Steel 0.125" (3.1750 mm) 0.375" (9.5250 mm) 0.1406" (3.5712 mm) 0.422" (10.7188 mm) 0.031" (0.7874 mm) Sealed 110 lbf
FR2-6zz 52100 Chrome Steel 0.125" (3.1750 mm) 0.375" (9.5250 mm) 0.1406" (3.5712 mm) 0.422" (10.7188 mm) 0.031" (0.7874 mm) Shielded 122 lbf
SFR2-6zz 440C Stainless Steel 0.125" (3.1750 mm) 0.375" (9.5250 mm) 0.1406" (3.5712 mm) 0.422" (10.7188 mm) 0.031" (0.7874 mm) Shielded 110 lbf
FR2zz 52100 Chrome Steel 0.125" (3.1750 mm) 0.375" (9.5250 mm) 0.1562" (3.9675 mm) 0.44" (11.1760 mm) 0.030" (0.7620 mm) Shielded 121 lbf
SFR2zz 440C Stainless Steel 0.125" (3.1750 mm) 0.375" (9.5250 mm) 0.1562" (3.9675 mm) 0.44" (11.1760 mm) 0.030" (0.7620 mm) Shielded 109 lbf
FR155 52100 Chrome Steel 0.15625" (3.9688 mm) 0.3125" (7.9375 mm) 0.1094" (2.7788 mm) 0.359" (9.1186 mm) 0.023" (0.5842 mm) Open 69 lbf
SFR155 440C Stainless Steel 0.15625" (3.9688 mm) 0.3125" (7.9375 mm) 0.1094" (2.7788 mm) 0.359" (9.1186 mm) 0.023" (0.5842 mm) Open 62 lbf
FR155 2rs 52100 Chrome Steel 0.15625" (3.9688 mm) 0.3125" (7.9375 mm) 0.125" (3.1750 mm) 0.359" (9.1186 mm) 0.036" (0.9144 mm) Sealed 69 lbf
SFR155 2rs 440C Stainless Steel 0.15625" (3.9688 mm) 0.3125" (7.9375 mm) 0.125" (3.1750 mm) 0.359" (9.1186 mm) 0.036" (0.9144 mm) Sealed 62 lbf
FR155zz 52100 Chrome Steel 0.15625" (3.9688 mm) 0.3125" (7.9375 mm) 0.125" (3.1750 mm) 0.359" (9.1186 mm) 0.036" (0.9144 mm) Shielded 69 lbf
SFR155zz 440C Stainless Steel 0.15625" (3.9688 mm) 0.3125" (7.9375 mm) 0.125" (3.1750 mm) 0.359" (9.1186 mm) 0.036" (0.9144 mm) Shielded 62 lbf
FR156 52100 Chrome Steel 0.1875" (4.7625 mm) 0.3125" (7.9375 mm) 0.1094" (2.7788 mm) 0.359" (9.1186 mm) 0.023" (0.5842 mm) Open 69 lbf
SFR156 440C Stainless Steel 0.1875" (4.7625 mm) 0.3125" (7.9375 mm) 0.1094" (2.7788 mm) 0.359" (9.1186 mm) 0.023" (0.5842 mm) Open 62 lbf
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