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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
    XZBRG Metric Standard bearing dimension diagram
    6 mm (0.2362 in)(17)
    7 mm (0.2756 in)(13)
  • OD
    10 mm (0.3937 in)(6)
    12 mm (0.4724 in)(6)
    13 mm (0.5118 in)(1)
    15 mm (0.5906 in)(2)
    19 mm (0.7480 in)(5)
    22 mm (0.8661 in)(8)
    26 mm (1.0236 in)(2)
  • Width
    2.5 mm (0.0984 in)(2)
    3 mm (0.1181 in)(6)
    3.5 mm (0.1378 in)(1)
    4 mm (0.1575 in)(4)
    5 mm (0.1969 in)(2)
    6 mm (0.2362 in)(5)
    7 mm (0.2756 in)(8)
    9 mm (0.3543 in)(2)
  • Static Load
    1025 N(1)
    1139 N(1)
    1787 N(2)
    1986 N(3)
    2515 N(3)
    2550 N(1)
    2794 N(3)
    2833 N(1)
    3491 N(1)
    380 N(3)
    3879 N(1)
    422 N(3)
    548 N(3)
    609 N(3)
    920 N(1)
Part NumberRing MaterialIDODWidthShield TypeDynamic LoadStatic LoadLimited Speed(x1K rpm)
686 52100 Chrome Steel 6 mm (0.2362 in) 13 mm (0.5118 in) 3.5 mm (0.1378 in) Open 920 N 354 N 40
S636zz 440C Stainless Steel 6 mm (0.2362 in) 22 mm (0.8661 in) 7 mm (0.2756 in) Shielded 2550 N 1024 N 27
636zz 52100 Chrome Steel 6 mm (0.2362 in) 22 mm (0.8661 in) 7 mm (0.2756 in) Shielded 2833 N 1138 N 30
SMR126 440C Stainless Steel 6 mm (0.2362 in) 12 mm (0.4724 in) 3 mm (0.1181 in) Open 548 N 212 N 38.7
MR126 52100 Chrome Steel 6 mm (0.2362 in) 12 mm (0.4724 in) 3 mm (0.1181 in) Open 609 N 236 N 43
SMR106zz 440C Stainless Steel 6 mm (0.2362 in) 10 mm (0.3937 in) 3 mm (0.1181 in) Shielded 380 N 157 N 40.5
SMR106 2rs 440C Stainless Steel 6 mm (0.2362 in) 10 mm (0.3937 in) 3 mm (0.1181 in) Sealed 380 N 157 N 40.5
MR106zz 52100 Chrome Steel 6 mm (0.2362 in) 10 mm (0.3937 in) 3 mm (0.1181 in) Shielded 422 N 174 N 45
MR106 2rs 52100 Chrome Steel 6 mm (0.2362 in) 10 mm (0.3937 in) 3 mm (0.1181 in) Sealed 422 N 174 N 45
SMR106 440C Stainless Steel 6 mm (0.2362 in) 10 mm (0.3937 in) 2.5 mm (0.0984 in) Open 380 N 157 N 40.5
MR106 52100 Chrome Steel 6 mm (0.2362 in) 10 mm (0.3937 in) 2.5 mm (0.0984 in) Open 422 N 174 N 45
S696zz 440C Stainless Steel 6 mm (0.2362 in) 15 mm (0.5906 in) 5 mm (0.1969 in) Shielded 1025 N 376 N 36
696zz 52100 Chrome Steel 6 mm (0.2362 in) 15 mm (0.5906 in) 5 mm (0.1969 in) Shielded 1139 N 418 N 40
607zz 52100 Chrome Steel 7 mm (0.2756 in) 19 mm (0.7480 in) 6 mm (0.2362 in) Shielded 1986 N 717 N 36
S607 2rs 440C Stainless Steel 7 mm (0.2756 in) 19 mm (0.7480 in) 6 mm (0.2362 in) Sealed 1787 N 645 N 32.4
607 2rs 52100 Chrome Steel 7 mm (0.2756 in) 19 mm (0.7480 in) 6 mm (0.2362 in) Sealed 1986 N 717 N 36
607 52100 Chrome Steel 7 mm (0.2756 in) 19 mm (0.7480 in) 6 mm (0.2362 in) Open 1986 N 717 N 36
S607 440C Stainless Steel 7 mm (0.2756 in) 19 mm (0.7480 in) 6 mm (0.2362 in) Open 1787 N 645 N 32.4
SMR126zz 440C Stainless Steel 6 mm (0.2362 in) 12 mm (0.4724 in) 4 mm (0.1575 in) Shielded 548 N 212 N 38.7
MR126zz 52100 Chrome Steel 6 mm (0.2362 in) 12 mm (0.4724 in) 4 mm (0.1575 in) Shielded 609 N 236 N 43
SMR126 2rs 440C Stainless Steel 6 mm (0.2362 in) 12 mm (0.4724 in) 4 mm (0.1575 in) Sealed 548 N 212 N 38.7
MR126 2rs 52100 Chrome Steel 6 mm (0.2362 in) 12 mm (0.4724 in) 4 mm (0.1575 in) Sealed 609 N 236 N 43
S637 440C Stainless Steel 7 mm (0.2756 in) 26 mm (1.0236 in) 9 mm (0.3543 in) Open 3491 N 1427 N 25.2
637 52100 Chrome Steel 7 mm (0.2756 in) 26 mm (1.0236 in) 9 mm (0.3543 in) Open 3879 N 1586 N 28
627zz 52100 Chrome Steel 7 mm (0.2756 in) 22 mm (0.8661 in) 7 mm (0.2756 in) Shielded 2794 N 1103 N 30
S627zz 440C Stainless Steel 7 mm (0.2756 in) 22 mm (0.8661 in) 7 mm (0.2756 in) Shielded 2515 N 993 N 27
S627 2rs 440C Stainless Steel 7 mm (0.2756 in) 22 mm (0.8661 in) 7 mm (0.2756 in) Sealed 2515 N 993 N 27
627 2rs 52100 Chrome Steel 7 mm (0.2756 in) 22 mm (0.8661 in) 7 mm (0.2756 in) Sealed 2794 N 1103 N 30
S627 440C Stainless Steel 7 mm (0.2756 in) 22 mm (0.8661 in) 7 mm (0.2756 in) Open 2515 N 993 N 27
627 52100 Chrome Steel 7 mm (0.2756 in) 22 mm (0.8661 in) 7 mm (0.2756 in) Open 2794 N 1103 N 30
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