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

8 mm(1)

9 mm(29)
OD

14 mm(7)

17 mm(5)

24 mm(6)

26 mm(6)

30 mm(6)
Width

10 mm(6)

3 mm(2)

4 mm(3)

4.5 mm(4)

5 mm(3)

7 mm(6)

8 mm(6)
Static Load

1015 N(2)

1128 N(3)

2568 N(3)

2853 N(3)

3491 N(3)

3564 N(3)

3879 N(3)

3960 N(3)

626 N(1)

703 N(3)

781 N(3)

Part Number	Ring Material	ID	OD	Width	Shield Type	Dynamic Load	Static Load	Limited Speed(x1K rpm)
689zz	52100 Chrome Steel	9 mm	17 mm	5 mm	Shielded	1128 N	534 N	36
S689 2rs	440C Stainless Steel	9 mm	17 mm	5 mm	Sealed	1015 N	481 N	32.4
689 2rs	52100 Chrome Steel	9 mm	17 mm	5 mm	Sealed	1128 N	534 N	36
S689	440C Stainless Steel	9 mm	17 mm	4 mm	Open	1015 N	481 N	32.4
S679zz	440C Stainless Steel	9 mm	14 mm	4.5 mm	Shielded	703 N	337 N	32.4
689	52100 Chrome Steel	9 mm	17 mm	4 mm	Open	1128 N	534 N	36
679zz	52100 Chrome Steel	9 mm	14 mm	4.5 mm	Shielded	781 N	374 N	36
S679 2rs	440C Stainless Steel	9 mm	14 mm	4.5 mm	Sealed	703 N	337 N	32.4
679 2rs	52100 Chrome Steel	9 mm	14 mm	4.5 mm	Sealed	781 N	374 N	36
S679	440C Stainless Steel	9 mm	14 mm	3 mm	Open	703 N	337 N	32.4
679	52100 Chrome Steel	9 mm	14 mm	3 mm	Open	781 N	374 N	36
S639zz	440C Stainless Steel	9 mm	30 mm	10 mm	Shielded	3564 N	1498 N	21.6
639zz	52100 Chrome Steel	9 mm	30 mm	10 mm	Shielded	3960 N	1664 N	24
S639 2rs	440C Stainless Steel	9 mm	30 mm	10 mm	Sealed	3564 N	1498 N	21.6
S639	440C Stainless Steel	9 mm	30 mm	10 mm	Open	3564 N	1498 N	21.6
639 2rs	52100 Chrome Steel	9 mm	30 mm	10 mm	Sealed	3960 N	1664 N	24
639	52100 Chrome Steel	9 mm	30 mm	10 mm	Open	3960 N	1664 N	24
S629zz	440C Stainless Steel	9 mm	26 mm	8 mm	Shielded	3491 N	1427 N	25.2
629zz	52100 Chrome Steel	9 mm	26 mm	8 mm	Shielded	3879 N	1586 N	28
S629 2rs	440C Stainless Steel	9 mm	26 mm	8 mm	Sealed	3491 N	1427 N	25.2
629 2rs	52100 Chrome Steel	9 mm	26 mm	8 mm	Sealed	3879 N	1586 N	28
S629	440C Stainless Steel	9 mm	26 mm	8 mm	Open	3491 N	1427 N	25.2
629	52100 Chrome Steel	9 mm	26 mm	8 mm	Open	3879 N	1586 N	28
S609zz	440C Stainless Steel	9 mm	24 mm	7 mm	Shielded	2568 N	1040 N	28.8
609zz	52100 Chrome Steel	9 mm	24 mm	7 mm	Shielded	2853 N	1155 N	32
S609 2rs	440C Stainless Steel	9 mm	24 mm	7 mm	Sealed	2568 N	1040 N	28.8
609 2rs	52100 Chrome Steel	9 mm	24 mm	7 mm	Sealed	2853 N	1155 N	32
609	52100 Chrome Steel	9 mm	24 mm	7 mm	Open	2853 N	1155 N	32
S609	440C Stainless Steel	9 mm	24 mm	7 mm	Open	2568 N	1040 N	28.8
SMR148zz	440C Stainless Steel	8 mm	14 mm	4 mm	Shielded	626 N	278 N	34.2

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