Inch Flanged Extended

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

0.15625" (3.9688 mm)(4)

0.1875" (4.7625 mm)(5)

0.25" (6.3500 mm)(4)

0.3125" (7.9375 mm)(4)

0.375" (9.5250 mm)(5)

0.5" (12.7000 mm)(8)
OD

0.04688" (1.1908 mm)(4)

0.05556" (1.4112 mm)(4)

0.07813" (1.9845 mm)(4)

0.09375" (2.3813 mm)(5)

0.1875" (4.7625 mm)(7)

0.25" (6.3500 mm)(6)
Width

0.0625" (1.5875 mm)(3)

0.0781" (1.9837 mm)(2)

0.0937" (2.3800 mm)(4)

0.1094" (2.7788 mm)(4)

0.125" (3.1750 mm)(6)

0.1406" (3.5712 mm)(4)

0.1562" (3.9675 mm)(2)

0.1875" (4.7625 mm)(1)

0.196" (4.9784 mm)(2)

0.2273" (5.7734 mm)(2)
Static Load

0.013" (0.3302 mm)(2)

0.018" (0.4572 mm)(1)

0.023" (0.5842 mm)(9)

0.031" (0.7874 mm)(9)

0.035" (0.8890 mm)(3)

0.042" (1.0668 mm)(6)

Part Number	Ring Material	OD	ID	Width	Flanged OD	Flanged Width	Inner Race OD	Inner Race Width
SFRW133	440C Stainless Steel	0.1875" (4.7625 mm)	0.09375" (2.3813 mm)	0.0625" (1.5875 mm)	0.234" (5.9436 mm)	0.018" (0.4572 mm)	0.118" (2.9972 mm)	0.0937" (2.3800 mm)
SFRW1-5zz	440C Stainless Steel	0.3125" (7.9375 mm)	0.09375" (2.3813 mm)	0.1406" (3.5712 mm)	0.359" (9.1186 mm)	0.031" (0.7874 mm)	0.173" (4.3942 mm)	0.1719" (4.3663 mm)
FRW1-5zz	52100 Chrome Steel	0.3125" (7.9375 mm)	0.09375" (2.3813 mm)	0.1406" (3.5712 mm)	0.359" (9.1186 mm)	0.031" (0.7874 mm)	0.173" (4.3942 mm)	0.1719" (4.3663 mm)
SFRW1-5	440C Stainless Steel	0.3125" (7.9375 mm)	0.09375" (2.3813 mm)	0.1094" (2.7788 mm)	0.359" (9.1186 mm)	0.023" (0.5842 mm)	0.173" (4.3942 mm)	0.1406" (3.5712 mm)
FRW1-5	52100 Chrome Steel	0.3125" (7.9375 mm)	0.09375" (2.3813 mm)	0.1094" (2.7788 mm)	0.359" (9.1186 mm)	0.023" (0.5842 mm)	0.173" (4.3942 mm)	0.1406" (3.5712 mm)
SFRW1-4zz	440C Stainless Steel	0.25" (6.3500 mm)	0.07813" (1.9845 mm)	0.1406" (3.5712 mm)	0.296" (7.5184 mm)	0.031" (0.7874 mm)	0.122" (3.0988 mm)	0.1719" (4.3663 mm)
FRW1-4zz	52100 Chrome Steel	0.25" (6.3500 mm)	0.07813" (1.9845 mm)	0.1406" (3.5712 mm)	0.296" (7.5184 mm)	0.031" (0.7874 mm)	0.122" (3.0988 mm)	0.1719" (4.3663 mm)
SFRW1-4	440C Stainless Steel	0.25" (6.3500 mm)	0.07813" (1.9845 mm)	0.0937" (2.3800 mm)	0.296" (7.5184 mm)	0.023" (0.5842 mm)	0.122" (3.0988 mm)	0.125" (3.1750 mm)
FRW1-4	52100 Chrome Steel	0.25" (6.3500 mm)	0.07813" (1.9845 mm)	0.0937" (2.3800 mm)	0.296" (7.5184 mm)	0.023" (0.5842 mm)	0.122" (3.0988 mm)	0.125" (3.1750 mm)
SFRW1	440C Stainless Steel	0.1875" (4.7625 mm)	0.05556" (1.4112 mm)	0.0781" (1.9837 mm)	0.234" (5.9436 mm)	0.023" (0.5842 mm)	0.093" (2.3622 mm)	0.1094" (2.7788 mm)
FRW1zz	52100 Chrome Steel	0.1875" (4.7625 mm)	0.05556" (1.4112 mm)	0.1094" (2.7788 mm)	0.234" (5.9436 mm)	0.031" (0.7874 mm)	0.093" (2.3622 mm)	0.1406" (3.5712 mm)
SFRW1zz	440C Stainless Steel	0.1875" (4.7625 mm)	0.05556" (1.4112 mm)	0.1094" (2.7788 mm)	0.234" (5.9436 mm)	0.031" (0.7874 mm)	0.093" (2.3622 mm)	0.1406" (3.5712 mm)
FRW1	52100 Chrome Steel	0.1875" (4.7625 mm)	0.05556" (1.4112 mm)	0.0781" (1.9837 mm)	0.234" (5.9436 mm)	0.023" (0.5842 mm)	0.093" (2.3622 mm)	0.1094" (2.7788 mm)
SFRW0zz	440C Stainless Steel	0.15625" (3.9688 mm)	0.04688" (1.1908 mm)	0.0937" (2.3800 mm)	0.203" (5.1562 mm)	0.031" (0.7874 mm)	0.081" (2.0574 mm)	0.1249" (3.1725 mm)
SFRW188zz	440C Stainless Steel	0.5" (12.7000 mm)	0.25" (6.3500 mm)	0.1875" (4.7625 mm)	0.547" (13.8938 mm)	0.035" (0.8890 mm)	0.33" (8.3820 mm)	0.2188" (5.5575 mm)
FRW0zz	52100 Chrome Steel	0.15625" (3.9688 mm)	0.04688" (1.1908 mm)	0.0937" (2.3800 mm)	0.203" (5.1562 mm)	0.031" (0.7874 mm)	0.081" (2.0574 mm)	0.1249" (3.1725 mm)
SFRW0	440C Stainless Steel	0.15625" (3.9688 mm)	0.04688" (1.1908 mm)	0.0625" (1.5875 mm)	0.203" (5.1562 mm)	0.013" (0.3302 mm)	0.081" (2.0574 mm)	0.0937" (2.3800 mm)
FRW0	52100 Chrome Steel	0.15625" (3.9688 mm)	0.04688" (1.1908 mm)	0.0625" (1.5875 mm)	0.203" (5.1562 mm)	0.013" (0.3302 mm)	0.081" (2.0574 mm)	0.0937" (2.3800 mm)
FRW3	52100 Chrome Steel	0.5" (12.7000 mm)	0.1875" (4.7625 mm)	0.1562" (3.9675 mm)	0.565" (14.3510 mm)	0.042" (1.0668 mm)	0.276" (7.0104 mm)	0.1875" (4.7625 mm)
FRW3 W19	52100 Chrome Steel	0.5" (12.7000 mm)	0.1875" (4.7625 mm)	0.2273" (5.7734 mm)	0.565" (14.3510 mm)	0.042" (1.0668 mm)	0.285" (7.2390 mm)	0.2273" (5.7734 mm)
SFRW166zz	440C Stainless Steel	0.375" (9.5250 mm)	0.1875" (4.7625 mm)	0.125" (3.1750 mm)	0.422" (10.7188 mm)	0.031" (0.7874 mm)	0.235" (5.9690 mm)	0.1562" (3.9675 mm)
SFRW3	440C Stainless Steel	0.5" (12.7000 mm)	0.1875" (4.7625 mm)	0.1562" (3.9675 mm)	0.565" (14.3510 mm)	0.042" (1.0668 mm)	0.276" (7.0104 mm)	0.1875" (4.7625 mm)
SFRW3 W19	440C Stainless Steel	0.5" (12.7000 mm)	0.1875" (4.7625 mm)	0.2273" (5.7734 mm)	0.565" (14.3510 mm)	0.042" (1.0668 mm)	0.285" (7.2390 mm)	0.2273" (5.7734 mm)
FRW3zz	52100 Chrome Steel	0.5" (12.7000 mm)	0.1875" (4.7625 mm)	0.196" (4.9784 mm)	0.565" (14.3510 mm)	0.042" (1.0668 mm)	0.221" (5.6134 mm)	0.2273" (5.7734 mm)
FRW168	52100 Chrome Steel	0.375" (9.5250 mm)	0.25" (6.3500 mm)	0.125" (3.1750 mm)	0.422" (10.7188 mm)	0.023" (0.5842 mm)	0.33" (8.3820 mm)	0.1562" (3.9675 mm)
SFRW3zz	440C Stainless Steel	0.5" (12.7000 mm)	0.1875" (4.7625 mm)	0.196" (4.9784 mm)	0.565" (14.3510 mm)	0.042" (1.0668 mm)	0.221" (5.6134 mm)	0.2273" (5.7734 mm)
SFRW168	440C Stainless Steel	0.375" (9.5250 mm)	0.25" (6.3500 mm)	0.125" (3.1750 mm)	0.422" (10.7188 mm)	0.023" (0.5842 mm)	0.33" (8.3820 mm)	0.1562" (3.9675 mm)
FRW168zz	52100 Chrome Steel	0.375" (9.5250 mm)	0.25" (6.3500 mm)	0.125" (3.1750 mm)	0.422" (10.7188 mm)	0.035" (0.8890 mm)	0.285" (7.2390 mm)	0.1562" (3.9675 mm)
FRW188	52100 Chrome Steel	0.5" (12.7000 mm)	0.25" (6.3500 mm)	0.125" (3.1750 mm)	0.547" (13.8938 mm)	0.023" (0.5842 mm)	0.364" (9.2456 mm)	0.1562" (3.9675 mm)
SFRW168zz	440C Stainless Steel	0.375" (9.5250 mm)	0.25" (6.3500 mm)	0.125" (3.1750 mm)	0.422" (10.7188 mm)	0.035" (0.8890 mm)	0.285" (7.2390 mm)	0.1562" (3.9675 mm)

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