• NMB Inch Series Extended Inner Ring Miniature Bearings (EE, ZZEE)
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NMB Inch Series Extended Inner Ring Miniature Bearings (EE, ZZEE)

NMB Inch Series Extended Inner Ring Miniature Bearings (EE, ZZEE)

NMB inch series radial bearings with inner ring extended on both sides (EE), flanged and unflanged, open or double shielded.

Key features

  • Inner ring extended both sides (EE) for spacing without separate shims
  • Unflanged (DDRI/DDR) and flanged (DDRIF/DDRF) versions
  • Open (EE) and double-shielded (ZZEE) versions
  • 400 series martensitic stainless steel
  • ABEC 1, 3, 5 and 7 tolerances apply

Specifications

Brand NMB
Ring material 400 series martensitic stainless steel (DD prefix)
Tolerance classes ABEC 1, 3, 5, 7
Series Inch extended inner ring
Units d, D, B (inner), C (outer width) in inches; N
Source NMB Miniature & Small Precision Ball Bearings catalog, p. 2.6-2.7
DDRI-2EE d: .0400 in | D: .1250 in | B: .0781 in | C: .0469 in | Cr: 106 N | Cor: 28 N
DDRIF-2EE d: .0400 in | D: .1250 in | B: .0781 in | C: .0469 in | Cr: 106 N | Cor: 28 N
DDRI-2 1/2EE d: .0469 in | D: .1562 in | B: .0937 in | C: .0625 in | Cr: 158 N | Cor: 44 N
DDRIF-2 1/2EE d: .0469 in | D: .1562 in | B: .0937 in | C: .0625 in | Cr: 158 N | Cor: 44 N
DDRI-3EE d: .0550 in | D: .1875 in | B: .1094 in | C: .0781 in | Cr: 264 N | Cor: 71 N
DDRIF-3EE d: .0550 in | D: .1875 in | B: .1094 in | C: .0781 in | Cr: 264 N | Cor: 71 N
DDRI-4EE d: .0781 in | D: .2500 in | B: .1250 in | C: .0937 in | Cr: 330 N | Cor: 99 N
DDRIF-4EE d: .0781 in | D: .2500 in | B: .1250 in | C: .0937 in | Cr: 330 N | Cor: 99 N
DDRI-3332EE d: .0937 in | D: .1875 in | B: .0937 in | C: .0625 in | Cr: 187 N | Cor: 59 N
DDRIF-3332EE d: .0937 in | D: .1875 in | B: .0937 in | C: .0625 in | Cr: 187 N | Cor: 59 N
DDRI-418EE d: .1250 in | D: .2500 in | B: .1250 in | C: .0937 in | Cr: 285 N | Cor: 97 N
DDRIF-418EE d: .1250 in | D: .2500 in | B: .1250 in | C: .0937 in | Cr: 285 N | Cor: 97 N
DDRI-518EE d: .1250 in | D: .3125 in | B: .1406 in | C: .1094 in | Cr: 563 N | Cor: 183 N
DDRIF-518EE d: .1250 in | D: .3125 in | B: .1406 in | C: .1094 in | Cr: 563 N | Cor: 183 N
DDRI-618EE d: .1250 in | D: .3750 in | B: .1406 in | C: .1094 in | Cr: 563 N | Cor: 183 N
DDRIF-618EE d: .1250 in | D: .3750 in | B: .1406 in | C: .1094 in | Cr: 563 N | Cor: 183 N
DDR-2EE d: .1250 in | D: .3750 in | B: .1875 in | C: .1562 in | Cr: 641 N | Cor: 226 N
DDRF-2EE d: .1250 in | D: .3750 in | B: .1875 in | C: .1562 in | Cr: 641 N | Cor: 226 N
DDRI-5532EE d: .1562 in | D: .3125 in | B: .1406 in | C: .1094 in | Cr: 391 N | Cor: 142 N
DDRIF-5532EE d: .1562 in | D: .3125 in | B: .1406 in | C: .1094 in | Cr: 391 N | Cor: 142 N
DDRI-5632EE d: .1875 in | D: .3125 in | B: .1406 in | C: .1094 in | Cr: 391 N | Cor: 142 N
DDRIF-5632EE d: .1875 in | D: .3125 in | B: .1406 in | C: .1094 in | Cr: 391 N | Cor: 142 N
DDRI-6632EE d: .1875 in | D: .3750 in | B: .1562 in | C: .1250 in | Cr: 712 N | Cor: 271 N
DDRIF-6632EE d: .1875 in | D: .3750 in | B: .1562 in | C: .1250 in | Cr: 712 N | Cor: 271 N
DDRI-614EE d: .2500 in | D: .3750 in | B: .1562 in | C: .1250 in | Cr: 417 N | Cor: 205 N
DDRIF-614EE d: .2500 in | D: .3750 in | B: .1562 in | C: .1250 in | Cr: 417 N | Cor: 205 N
DDRI-814EE d: .2500 in | D: .5000 in | B: .1562 in | C: .1250 in | Cr: 828 N | Cor: 374 N
DDRIF-814EE d: .2500 in | D: .5000 in | B: .1562 in | C: .1250 in | Cr: 828 N | Cor: 374 N
DDRI-8516EE d: .3125 in | D: .5000 in | B: .1875 in | C: .1562 in | Cr: 878 N | Cor: 419 N
DDRIF-8516EE d: .3125 in | D: .5000 in | B: .1875 in | C: .1562 in | Cr: 878 N | Cor: 419 N
DDRI-2 1/2ZZEE d: .0469 in | D: .1562 in | B: .1250 in | C: .0937 in | Cr: 158 N | Cor: 44 N
DDRIF-2 1/2ZZEE d: .0469 in | D: .1562 in | B: .1250 in | C: .0937 in | Cr: 158 N | Cor: 44 N
DDRI-3ZZEE d: .0550 in | D: .1875 in | B: .1406 in | C: .1094 in | Cr: 264 N | Cor: 71 N
DDRIF-3ZZEE d: .0550 in | D: .1875 in | B: .1406 in | C: .1094 in | Cr: 264 N | Cor: 71 N
DDRI-4ZZEE d: .0781 in | D: .2500 in | B: .1719 in | C: .1406 in | Cr: 330 N | Cor: 99 N
DDRIF-4ZZEE d: .0781 in | D: .2500 in | B: .1719 in | C: .1406 in | Cr: 330 N | Cor: 99 N
DDRI-3332ZZEE d: .0937 in | D: .1875 in | B: .1250 in | C: .0937 in | Cr: 187 N | Cor: 59 N
DDRIF-3332ZZEE d: .0937 in | D: .1875 in | B: .1250 in | C: .0937 in | Cr: 187 N | Cor: 59 N
DDRI-418ZZEE d: .1250 in | D: .2500 in | B: .1406 in | C: .1094 in | Cr: 285 N | Cor: 97 N
DDRIF-418ZZEE d: .1250 in | D: .2500 in | B: .1406 in | C: .1094 in | Cr: 285 N | Cor: 97 N
DDRI-518ZZEE d: .1250 in | D: .3125 in | B: .1719 in | C: .1406 in | Cr: 563 N | Cor: 183 N
DDRIF-518ZZEE d: .1250 in | D: .3125 in | B: .1719 in | C: .1406 in | Cr: 563 N | Cor: 183 N
DDRI-618ZZEE d: .1250 in | D: .3750 in | B: .1719 in | C: .1406 in | Cr: 563 N | Cor: 183 N
DDRIF-618ZZEE d: .1250 in | D: .3750 in | B: .1719 in | C: .1406 in | Cr: 563 N | Cor: 183 N
DDR-2ZZEE d: .1250 in | D: .3750 in | B: .1875 in | C: .1562 in | Cr: 641 N | Cor: 226 N
DDRF-2ZZEE d: .1250 in | D: .3750 in | B: .1875 in | C: .1562 in | Cr: 641 N | Cor: 226 N
DDRI-5532ZZEE d: .1562 in | D: .3125 in | B: .1562 in | C: .1250 in | Cr: 391 N | Cor: 142 N
DDRIF-5532ZZEE d: .1562 in | D: .3125 in | B: .1562 in | C: .1250 in | Cr: 391 N | Cor: 142 N
DDRI-5632ZZEE d: .1875 in | D: .3125 in | B: .1562 in | C: .1250 in | Cr: 391 N | Cor: 142 N
DDRIF-5632ZZEE d: .1875 in | D: .3125 in | B: .1562 in | C: .1250 in | Cr: 391 N | Cor: 142 N
DDRI-6632ZZEE d: .1875 in | D: .3750 in | B: .1562 in | C: .1250 in | Cr: 712 N | Cor: 271 N
DDRIF-6632ZZEE d: .1875 in | D: .3750 in | B: .1562 in | C: .1250 in | Cr: 712 N | Cor: 271 N
DDR-3ZZEE d: .1875 in | D: .5000 in | B: .2272 in | C: .1960 in | Cr: 1306 N | Cor: 487 N
DDRF-3ZZEE d: .1875 in | D: .5000 in | B: .2272 in | C: .1960 in | Cr: 1306 N | Cor: 487 N
DDRI-614ZZEE d: .2500 in | D: .3750 in | B: .1562 in | C: .1250 in | Cr: 417 N | Cor: 205 N
DDRIF-614ZZEE d: .2500 in | D: .3750 in | B: .1562 in | C: .1250 in | Cr: 417 N | Cor: 205 N
DDRI-814ZZEE d: .2500 in | D: .5000 in | B: .2188 in | C: .1875 in | Cr: 828 N | Cor: 374 N
DDRIF-814ZZEE d: .2500 in | D: .5000 in | B: .2188 in | C: .1875 in | Cr: 828 N | Cor: 374 N
DDR-4ZZEE d: .2500 in | D: .6250 in | B: .2260 in | C: .1960 in | Cr: 1470 N | Cor: 599 N
DDRF-4ZZEE d: .2500 in | D: .6250 in | B: .2260 in | C: .1960 in | Cr: 1470 N | Cor: 599 N
DDRI-8516ZZEE d: .3125 in | D: .5000 in | B: .1875 in | C: .1562 in | Cr: 878 N | Cor: 419 N
DDRIF-8516ZZEE d: .3125 in | D: .5000 in | B: .1875 in | C: .1562 in | Cr: 878 N | Cor: 419 N
Miniature BearingsNMB
62 product codes available in this family
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NMB Inch Series Extended Inner Ring Miniature Bearings (EE, ZZEE)

Brand NMB·Miniature Bearings

Available part numbers (62)

DDRI-2EE, DDRIF-2EE, DDRI-2 1/2EE, DDRIF-2 1/2EE, DDRI-3EE, DDRIF-3EE, DDRI-4EE, DDRIF-4EE, DDRI-3332EE, DDRIF-3332EE + 52 more — see full table ↓

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Product codes & specifications
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Product codeSpec
DDRI-2EEd: .0400 in | D: .1250 in | B: .0781 in | C: .0469 in | Cr: 106 N | Cor: 28 N
DDRIF-2EEd: .0400 in | D: .1250 in | B: .0781 in | C: .0469 in | Cr: 106 N | Cor: 28 N
DDRI-2 1/2EEd: .0469 in | D: .1562 in | B: .0937 in | C: .0625 in | Cr: 158 N | Cor: 44 N
DDRIF-2 1/2EEd: .0469 in | D: .1562 in | B: .0937 in | C: .0625 in | Cr: 158 N | Cor: 44 N
DDRI-3EEd: .0550 in | D: .1875 in | B: .1094 in | C: .0781 in | Cr: 264 N | Cor: 71 N
DDRIF-3EEd: .0550 in | D: .1875 in | B: .1094 in | C: .0781 in | Cr: 264 N | Cor: 71 N
DDRI-4EEd: .0781 in | D: .2500 in | B: .1250 in | C: .0937 in | Cr: 330 N | Cor: 99 N
DDRIF-4EEd: .0781 in | D: .2500 in | B: .1250 in | C: .0937 in | Cr: 330 N | Cor: 99 N
DDRI-3332EEd: .0937 in | D: .1875 in | B: .0937 in | C: .0625 in | Cr: 187 N | Cor: 59 N
DDRIF-3332EEd: .0937 in | D: .1875 in | B: .0937 in | C: .0625 in | Cr: 187 N | Cor: 59 N
DDRI-418EEd: .1250 in | D: .2500 in | B: .1250 in | C: .0937 in | Cr: 285 N | Cor: 97 N
DDRIF-418EEd: .1250 in | D: .2500 in | B: .1250 in | C: .0937 in | Cr: 285 N | Cor: 97 N
DDRI-518EEd: .1250 in | D: .3125 in | B: .1406 in | C: .1094 in | Cr: 563 N | Cor: 183 N
DDRIF-518EEd: .1250 in | D: .3125 in | B: .1406 in | C: .1094 in | Cr: 563 N | Cor: 183 N
DDRI-618EEd: .1250 in | D: .3750 in | B: .1406 in | C: .1094 in | Cr: 563 N | Cor: 183 N
DDRIF-618EEd: .1250 in | D: .3750 in | B: .1406 in | C: .1094 in | Cr: 563 N | Cor: 183 N
DDR-2EEd: .1250 in | D: .3750 in | B: .1875 in | C: .1562 in | Cr: 641 N | Cor: 226 N
DDRF-2EEd: .1250 in | D: .3750 in | B: .1875 in | C: .1562 in | Cr: 641 N | Cor: 226 N
DDRI-5532EEd: .1562 in | D: .3125 in | B: .1406 in | C: .1094 in | Cr: 391 N | Cor: 142 N
DDRIF-5532EEd: .1562 in | D: .3125 in | B: .1406 in | C: .1094 in | Cr: 391 N | Cor: 142 N
DDRI-5632EEd: .1875 in | D: .3125 in | B: .1406 in | C: .1094 in | Cr: 391 N | Cor: 142 N
DDRIF-5632EEd: .1875 in | D: .3125 in | B: .1406 in | C: .1094 in | Cr: 391 N | Cor: 142 N
DDRI-6632EEd: .1875 in | D: .3750 in | B: .1562 in | C: .1250 in | Cr: 712 N | Cor: 271 N
DDRIF-6632EEd: .1875 in | D: .3750 in | B: .1562 in | C: .1250 in | Cr: 712 N | Cor: 271 N
DDRI-614EEd: .2500 in | D: .3750 in | B: .1562 in | C: .1250 in | Cr: 417 N | Cor: 205 N
DDRIF-614EEd: .2500 in | D: .3750 in | B: .1562 in | C: .1250 in | Cr: 417 N | Cor: 205 N
DDRI-814EEd: .2500 in | D: .5000 in | B: .1562 in | C: .1250 in | Cr: 828 N | Cor: 374 N
DDRIF-814EEd: .2500 in | D: .5000 in | B: .1562 in | C: .1250 in | Cr: 828 N | Cor: 374 N
DDRI-8516EEd: .3125 in | D: .5000 in | B: .1875 in | C: .1562 in | Cr: 878 N | Cor: 419 N
DDRIF-8516EEd: .3125 in | D: .5000 in | B: .1875 in | C: .1562 in | Cr: 878 N | Cor: 419 N
DDRI-2 1/2ZZEEd: .0469 in | D: .1562 in | B: .1250 in | C: .0937 in | Cr: 158 N | Cor: 44 N
DDRIF-2 1/2ZZEEd: .0469 in | D: .1562 in | B: .1250 in | C: .0937 in | Cr: 158 N | Cor: 44 N
DDRI-3ZZEEd: .0550 in | D: .1875 in | B: .1406 in | C: .1094 in | Cr: 264 N | Cor: 71 N
DDRIF-3ZZEEd: .0550 in | D: .1875 in | B: .1406 in | C: .1094 in | Cr: 264 N | Cor: 71 N
DDRI-4ZZEEd: .0781 in | D: .2500 in | B: .1719 in | C: .1406 in | Cr: 330 N | Cor: 99 N
DDRIF-4ZZEEd: .0781 in | D: .2500 in | B: .1719 in | C: .1406 in | Cr: 330 N | Cor: 99 N
DDRI-3332ZZEEd: .0937 in | D: .1875 in | B: .1250 in | C: .0937 in | Cr: 187 N | Cor: 59 N
DDRIF-3332ZZEEd: .0937 in | D: .1875 in | B: .1250 in | C: .0937 in | Cr: 187 N | Cor: 59 N
DDRI-418ZZEEd: .1250 in | D: .2500 in | B: .1406 in | C: .1094 in | Cr: 285 N | Cor: 97 N
DDRIF-418ZZEEd: .1250 in | D: .2500 in | B: .1406 in | C: .1094 in | Cr: 285 N | Cor: 97 N
DDRI-518ZZEEd: .1250 in | D: .3125 in | B: .1719 in | C: .1406 in | Cr: 563 N | Cor: 183 N
DDRIF-518ZZEEd: .1250 in | D: .3125 in | B: .1719 in | C: .1406 in | Cr: 563 N | Cor: 183 N
DDRI-618ZZEEd: .1250 in | D: .3750 in | B: .1719 in | C: .1406 in | Cr: 563 N | Cor: 183 N
DDRIF-618ZZEEd: .1250 in | D: .3750 in | B: .1719 in | C: .1406 in | Cr: 563 N | Cor: 183 N
DDR-2ZZEEd: .1250 in | D: .3750 in | B: .1875 in | C: .1562 in | Cr: 641 N | Cor: 226 N
DDRF-2ZZEEd: .1250 in | D: .3750 in | B: .1875 in | C: .1562 in | Cr: 641 N | Cor: 226 N
DDRI-5532ZZEEd: .1562 in | D: .3125 in | B: .1562 in | C: .1250 in | Cr: 391 N | Cor: 142 N
DDRIF-5532ZZEEd: .1562 in | D: .3125 in | B: .1562 in | C: .1250 in | Cr: 391 N | Cor: 142 N
DDRI-5632ZZEEd: .1875 in | D: .3125 in | B: .1562 in | C: .1250 in | Cr: 391 N | Cor: 142 N
DDRIF-5632ZZEEd: .1875 in | D: .3125 in | B: .1562 in | C: .1250 in | Cr: 391 N | Cor: 142 N
DDRI-6632ZZEEd: .1875 in | D: .3750 in | B: .1562 in | C: .1250 in | Cr: 712 N | Cor: 271 N
DDRIF-6632ZZEEd: .1875 in | D: .3750 in | B: .1562 in | C: .1250 in | Cr: 712 N | Cor: 271 N
DDR-3ZZEEd: .1875 in | D: .5000 in | B: .2272 in | C: .1960 in | Cr: 1306 N | Cor: 487 N
DDRF-3ZZEEd: .1875 in | D: .5000 in | B: .2272 in | C: .1960 in | Cr: 1306 N | Cor: 487 N
DDRI-614ZZEEd: .2500 in | D: .3750 in | B: .1562 in | C: .1250 in | Cr: 417 N | Cor: 205 N
DDRIF-614ZZEEd: .2500 in | D: .3750 in | B: .1562 in | C: .1250 in | Cr: 417 N | Cor: 205 N
DDRI-814ZZEEd: .2500 in | D: .5000 in | B: .2188 in | C: .1875 in | Cr: 828 N | Cor: 374 N
DDRIF-814ZZEEd: .2500 in | D: .5000 in | B: .2188 in | C: .1875 in | Cr: 828 N | Cor: 374 N
DDR-4ZZEEd: .2500 in | D: .6250 in | B: .2260 in | C: .1960 in | Cr: 1470 N | Cor: 599 N
DDRF-4ZZEEd: .2500 in | D: .6250 in | B: .2260 in | C: .1960 in | Cr: 1470 N | Cor: 599 N
DDRI-8516ZZEEd: .3125 in | D: .5000 in | B: .1875 in | C: .1562 in | Cr: 878 N | Cor: 419 N
DDRIF-8516ZZEEd: .3125 in | D: .5000 in | B: .1875 in | C: .1562 in | Cr: 878 N | Cor: 419 N

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