Metric 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

7 mm (0.2756 in)(29)

8 mm (0.3150 in)(1)
OD

11 mm (0.4331 in)(6)

13 mm (0.5118 in)(6)

14 mm (0.5512 in)(6)

17 mm (0.6693 in)(6)

19 mm (0.7480 in)(1)

22 mm (0.8661 in)(1)

26 mm (1.0236 in)(4)
Width

2.5 mm (0.0984 in)(2)

3 mm (0.1181 in)(6)

3.5 mm (0.1378 in)(2)

4 mm (0.1575 in)(4)

5 mm (0.1969 in)(10)

6 mm (0.2362 in)(1)

7 mm (0.2756 in)(1)

9 mm (0.3543 in)(4)
Static Load

1228 N(3)

1364 N(3)

1787 N(1)

2519 N(1)

348 N(3)

3491 N(2)

387 N(3)

3879 N(2)

414 N(3)

460 N(3)

897 N(3)

997 N(3)

Part Number	Ring Material	ID	OD	Width	Shield Type	Dynamic Load	Static Load	Limited Speed(x1K rpm)
S607zz	440C Stainless Steel	7 mm (0.2756 in)	19 mm (0.7480 in)	6 mm (0.2362 in)	Shielded	1787 N	645 N	32.4
S687zz	440C Stainless Steel	7 mm (0.2756 in)	14 mm (0.5512 in)	5 mm (0.1969 in)	Shielded	897 N	369 N	36
687zz	52100 Chrome Steel	7 mm (0.2756 in)	14 mm (0.5512 in)	5 mm (0.1969 in)	Shielded	997 N	410 N	40
S687 2rs	440C Stainless Steel	7 mm (0.2756 in)	14 mm (0.5512 in)	5 mm (0.1969 in)	Sealed	897 N	369 N	36
687 2rs	52100 Chrome Steel	7 mm (0.2756 in)	14 mm (0.5512 in)	5 mm (0.1969 in)	Sealed	997 N	410 N	40
S687	440C Stainless Steel	7 mm (0.2756 in)	14 mm (0.5512 in)	3.5 mm (0.1378 in)	Open	897 N	369 N	36
687	52100 Chrome Steel	7 mm (0.2756 in)	14 mm (0.5512 in)	3.5 mm (0.1378 in)	Open	997 N	410 N	40
S637zz	440C Stainless Steel	7 mm (0.2756 in)	26 mm (1.0236 in)	9 mm (0.3543 in)	Shielded	3491 N	1427 N	25.2
637zz	52100 Chrome Steel	7 mm (0.2756 in)	26 mm (1.0236 in)	9 mm (0.3543 in)	Shielded	3879 N	1586 N	28
S637 2rs	440C Stainless Steel	7 mm (0.2756 in)	26 mm (1.0236 in)	9 mm (0.3543 in)	Sealed	3491 N	1427 N	25.2
637 2rs	52100 Chrome Steel	7 mm (0.2756 in)	26 mm (1.0236 in)	9 mm (0.3543 in)	Sealed	3879 N	1586 N	28
SMR117	440C Stainless Steel	7 mm (0.2756 in)	11 mm (0.4331 in)	2.5 mm (0.0984 in)	Open	348 N	146 N	38.7
MR117 2rs	52100 Chrome Steel	7 mm (0.2756 in)	11 mm (0.4331 in)	3 mm (0.1181 in)	Sealed	387 N	162 N	43
MR117	52100 Chrome Steel	7 mm (0.2756 in)	11 mm (0.4331 in)	2.5 mm (0.0984 in)	Open	387 N	162 N	43
S697zz	440C Stainless Steel	7 mm (0.2756 in)	17 mm (0.6693 in)	5 mm (0.1969 in)	Shielded	1228 N	518 N	32.4
697zz	52100 Chrome Steel	7 mm (0.2756 in)	17 mm (0.6693 in)	5 mm (0.1969 in)	Shielded	1364 N	575 N	36
S697 2rs	440C Stainless Steel	7 mm (0.2756 in)	17 mm (0.6693 in)	5 mm (0.1969 in)	Sealed	1228 N	518 N	32.4
697 2rs	52100 Chrome Steel	7 mm (0.2756 in)	17 mm (0.6693 in)	5 mm (0.1969 in)	Sealed	1364 N	575 N	36
697	52100 Chrome Steel	7 mm (0.2756 in)	17 mm (0.6693 in)	5 mm (0.1969 in)	Open	1364 N	575 N	36
S697	440C Stainless Steel	7 mm (0.2756 in)	17 mm (0.6693 in)	5 mm (0.1969 in)	Open	1228 N	518 N	32.4
S608	440C Stainless Steel	8 mm (0.3150 in)	22 mm (0.8661 in)	7 mm (0.2756 in)	Open	2519 N	993 N	30.6
SMR137zz	440C Stainless Steel	7 mm (0.2756 in)	13 mm (0.5118 in)	4 mm (0.1575 in)	Shielded	414 N	199 N	36
MR137zz	52100 Chrome Steel	7 mm (0.2756 in)	13 mm (0.5118 in)	4 mm (0.1575 in)	Shielded	460 N	221 N	40
SMR137 2rs	440C Stainless Steel	7 mm (0.2756 in)	13 mm (0.5118 in)	4 mm (0.1575 in)	Sealed	414 N	199 N	36
MR137 2rs	52100 Chrome Steel	7 mm (0.2756 in)	13 mm (0.5118 in)	4 mm (0.1575 in)	Sealed	460 N	221 N	40
SMR137	440C Stainless Steel	7 mm (0.2756 in)	13 mm (0.5118 in)	3 mm (0.1181 in)	Open	414 N	199 N	36
MR137	52100 Chrome Steel	7 mm (0.2756 in)	13 mm (0.5118 in)	3 mm (0.1181 in)	Open	460 N	221 N	40
SMR117zz	440C Stainless Steel	7 mm (0.2756 in)	11 mm (0.4331 in)	3 mm (0.1181 in)	Shielded	348 N	146 N	38.7
MR117zz	52100 Chrome Steel	7 mm (0.2756 in)	11 mm (0.4331 in)	3 mm (0.1181 in)	Shielded	387 N	162 N	43
SMR117 2rs	440C Stainless Steel	7 mm (0.2756 in)	11 mm (0.4331 in)	3 mm (0.1181 in)	Sealed	348 N	146 N	38.7

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