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

4 mm(30)
OD

10 mm(6)

11 mm(6)

16 mm(1)

7 mm(6)

8 mm(5)

9 mm(6)
Width

2 mm(4)

2.5 mm(6)

3 mm(5)

4 mm(14)

5 mm(1)
Static Load

1025 N(1)

195 N(2)

217 N(2)

238 N(1)

264 N(1)

302 N(3)

336 N(2)

490 N(3)

544 N(3)

545 N(3)

604 N(3)

733 N(3)

814 N(3)

Part Number	Ring Material	ID	OD	Width	Shield Type	Dynamic Load	Static Load	Limited Speed(x1K rpm)
SMR84zz	440C Stainless Steel	4 mm	8 mm	3 mm	Shielded	302 N	102 N	50.4
SMR84 2rs	440C Stainless Steel	4 mm	8 mm	3 mm	Sealed	302 N	102 N	50.4
MR84 2rs	52100 Chrome Steel	4 mm	8 mm	3 mm	Sealed	336 N	113 N	56
MR84	52100 Chrome Steel	4 mm	8 mm	2 mm	Open	336 N	113 N	56
SMR84	440C Stainless Steel	4 mm	8 mm	2 mm	Open	302 N	102 N	50.4
SMR74zz	440C Stainless Steel	4 mm	7 mm	2.5 mm	Shielded	195 N	77 N	54
MR74zz	52100 Chrome Steel	4 mm	7 mm	2.5 mm	Shielded	217 N	86 N	60
SMR74 2rs	440C Stainless Steel	4 mm	7 mm	2.5 mm	Sealed	195 N	77 N	54
MR74 2rs	52100 Chrome Steel	4 mm	7 mm	2.5 mm	Sealed	217 N	86 N	60
MR74	52100 Chrome Steel	4 mm	7 mm	2 mm	Open	264 N	92 N	60
SMR74	440C Stainless Steel	4 mm	7 mm	2 mm	Open	238 N	83 N	54
MR104zz	52100 Chrome Steel	4 mm	10 mm	4 mm	Shielded	604 N	218 N	48
SMR104zz	440C Stainless Steel	4 mm	10 mm	4 mm	Shielded	544 N	196 N	43.2
SMR104 2rs	440C Stainless Steel	4 mm	10 mm	4 mm	Sealed	544 N	196 N	43.2
MR104 2rs	52100 Chrome Steel	4 mm	10 mm	4 mm	Sealed	604 N	218 N	48
MR104	52100 Chrome Steel	4 mm	10 mm	3 mm	Open	604 N	218 N	48
SMR104	440C Stainless Steel	4 mm	10 mm	3 mm	Open	544 N	196 N	43.2
S694zz	440C Stainless Steel	4 mm	11 mm	4 mm	Shielded	733 N	252 N	43.2
694zz	52100 Chrome Steel	4 mm	11 mm	4 mm	Shielded	814 N	280 N	48
694 2rs	52100 Chrome Steel	4 mm	11 mm	4 mm	Sealed	814 N	280 N	48
S694 2rs	440C Stainless Steel	4 mm	11 mm	4 mm	Sealed	733 N	252 N	43.2
694	52100 Chrome Steel	4 mm	11 mm	4 mm	Open	814 N	280 N	48
S694	440C Stainless Steel	4 mm	11 mm	4 mm	Open	733 N	252 N	43.2
684zz	52100 Chrome Steel	4 mm	9 mm	4 mm	Shielded	545 N	182 N	53
S684zz	440C Stainless Steel	4 mm	9 mm	4 mm	Shielded	490 N	164 N	47.7
684 2rs	52100 Chrome Steel	4 mm	9 mm	4 mm	Sealed	545 N	182 N	53
S684 2rs	440C Stainless Steel	4 mm	9 mm	4 mm	Sealed	490 N	164 N	47.7
684	52100 Chrome Steel	4 mm	9 mm	2.5 mm	Open	545 N	182 N	53
S684	440C Stainless Steel	4 mm	9 mm	2.5 mm	Open	490 N	164 N	47.7
S634zz	440C Stainless Steel	4 mm	16 mm	5 mm	Shielded	1025 N	376 N	32.4

Page Previous Next