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

0.125" (3.1750 mm)(4)
OD

0.375" (9.5250 mm)(1)

0.5" (12.7000 mm)(3)
Width

0.1562" (3.9675 mm)(1)

0.1719" (4.3663 mm)(3)
Static Load

110 lbf(2)

121 lbf(1)

122 lbf(1)

Part Number	Ring Material	ID	OD	Width	Shield Type	Dynamic Load	Static Load	Limited Speed(x1K rpm)
SR2A 2rs	440C Stainless Steel	0.125" (3.1750 mm)	0.5" (12.7000 mm)	0.1719" (4.3663 mm)	Sealed	110 lbf	37 lbf	47.7
R2Azz	52100 Chrome Steel	0.125" (3.1750 mm)	0.5" (12.7000 mm)	0.1719" (4.3663 mm)	Shielded	122 lbf	41 lbf	53
SR2Azz	440C Stainless Steel	0.125" (3.1750 mm)	0.5" (12.7000 mm)	0.1719" (4.3663 mm)	Shielded	110 lbf	37 lbf	47.7
R2zz	52100 Chrome Steel	0.125" (3.1750 mm)	0.375" (9.5250 mm)	0.1562" (3.9675 mm)	Shielded	121 lbf	39 lbf	56

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