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

5 mm (0.1969 in)(30)
OD

10 mm (0.3937 in)(6)

11 mm (0.4331 in)(8)

13 mm (0.5118 in)(6)

19 mm (0.7480 in)(3)

8 mm (0.3150 in)(4)

9 mm (0.3543 in)(3)
Width

2.5 mm (0.0984 in)(6)

3 mm (0.1181 in)(3)

4 mm (0.1575 in)(16)

5 mm (0.1969 in)(2)

6 mm (0.2362 in)(3)
Static Load

166 N(2)

1787 N(2)

185 N(2)

1986 N(1)

329 N(4)

366 N(5)

548 N(4)

609 N(4)

824 N(3)

916 N(3)

Part Number	Ring Material	ID	OD	Width	Shield Type	Dynamic Load	Static Load	Limited Speed(x1K rpm)
S635 2rs	440C Stainless Steel	5 mm (0.1969 in)	19 mm (0.7480 in)	6 mm (0.2362 in)	Sealed	1787 N	645 N	28.8
635 2rs	52100 Chrome Steel	5 mm (0.1969 in)	19 mm (0.7480 in)	6 mm (0.2362 in)	Sealed	1986 N	717 N	32
S635	440C Stainless Steel	5 mm (0.1969 in)	19 mm (0.7480 in)	6 mm (0.2362 in)	Open	1787 N	645 N	28.8
SMR105	440C Stainless Steel	5 mm (0.1969 in)	10 mm (0.3937 in)	3 mm (0.1181 in)	Open	329 N	122 N	45
MR105	52100 Chrome Steel	5 mm (0.1969 in)	10 mm (0.3937 in)	3 mm (0.1181 in)	Open	366 N	135 N	50
S695zz	440C Stainless Steel	5 mm (0.1969 in)	13 mm (0.5118 in)	4 mm (0.1575 in)	Shielded	824 N	311 N	38.7
695zz	52100 Chrome Steel	5 mm (0.1969 in)	13 mm (0.5118 in)	4 mm (0.1575 in)	Shielded	916 N	346 N	43
S695 2rs	440C Stainless Steel	5 mm (0.1969 in)	13 mm (0.5118 in)	4 mm (0.1575 in)	Sealed	824 N	311 N	38.7
695 2rs	52100 Chrome Steel	5 mm (0.1969 in)	13 mm (0.5118 in)	4 mm (0.1575 in)	Sealed	916 N	346 N	43
S695	440C Stainless Steel	5 mm (0.1969 in)	13 mm (0.5118 in)	4 mm (0.1575 in)	Open	824 N	311 N	38.7
695	52100 Chrome Steel	5 mm (0.1969 in)	13 mm (0.5118 in)	4 mm (0.1575 in)	Open	916 N	346 N	43
685zz	52100 Chrome Steel	5 mm (0.1969 in)	11 mm (0.4331 in)	5 mm (0.1969 in)	Shielded	609 N	226 N	45
S685zz	440C Stainless Steel	5 mm (0.1969 in)	11 mm (0.4331 in)	5 mm (0.1969 in)	Shielded	548 N	203 N	40.5
SMR115zz	440C Stainless Steel	5 mm (0.1969 in)	11 mm (0.4331 in)	4 mm (0.1575 in)	Shielded	548 N	203 N	40.5
SMR115 2rs	440C Stainless Steel	5 mm (0.1969 in)	11 mm (0.4331 in)	4 mm (0.1575 in)	Sealed	548 N	203 N	40.5
MR115 2rs	52100 Chrome Steel	5 mm (0.1969 in)	11 mm (0.4331 in)	4 mm (0.1575 in)	Sealed	609 N	226 N	45
SMR115	440C Stainless Steel	5 mm (0.1969 in)	11 mm (0.4331 in)	4 mm (0.1575 in)	Open	548 N	203 N	40.5
MR115	52100 Chrome Steel	5 mm (0.1969 in)	11 mm (0.4331 in)	4 mm (0.1575 in)	Open	609 N	226 N	45
SMR105zz	440C Stainless Steel	5 mm (0.1969 in)	10 mm (0.3937 in)	4 mm (0.1575 in)	Shielded	329 N	122 N	45
MR105zz	52100 Chrome Steel	5 mm (0.1969 in)	10 mm (0.3937 in)	4 mm (0.1575 in)	Shielded	366 N	135 N	50
MR105 2rs	52100 Chrome Steel	5 mm (0.1969 in)	10 mm (0.3937 in)	4 mm (0.1575 in)	Sealed	366 N	135 N	50
SMR105 2rs	440C Stainless Steel	5 mm (0.1969 in)	10 mm (0.3937 in)	4 mm (0.1575 in)	Sealed	329 N	122 N	45
MR115zz	52100 Chrome Steel	5 mm (0.1969 in)	11 mm (0.4331 in)	4 mm (0.1575 in)	Shielded	609 N	226 N	45
MR95 2rs	52100 Chrome Steel	5 mm (0.1969 in)	9 mm (0.3543 in)	3 mm (0.1181 in)	Sealed	366 N	135 N	50
SMR95	440C Stainless Steel	5 mm (0.1969 in)	9 mm (0.3543 in)	2.5 mm (0.0984 in)	Open	329 N	122 N	45
MR95	52100 Chrome Steel	5 mm (0.1969 in)	9 mm (0.3543 in)	2.5 mm (0.0984 in)	Open	366 N	135 N	50
SMR85zz	440C Stainless Steel	5 mm (0.1969 in)	8 mm (0.3150 in)	2.5 mm (0.0984 in)	Shielded	166 N	65 N	47.7
MR85zz	52100 Chrome Steel	5 mm (0.1969 in)	8 mm (0.3150 in)	2.5 mm (0.0984 in)	Shielded	185 N	72 N	53
SMR85 2rs	440C Stainless Steel	5 mm (0.1969 in)	8 mm (0.3150 in)	2.5 mm (0.0984 in)	Sealed	166 N	65 N	47.7
MR85 2rs	52100 Chrome Steel	5 mm (0.1969 in)	8 mm (0.3150 in)	2.5 mm (0.0984 in)	Sealed	185 N	72 N	53

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