• NSK FR Series Inch Flanged Miniature Ball Bearings
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NSK FR Series Inch Flanged Miniature Ball Bearings

NSK FR Series Inch Flanged Miniature Ball Bearings

NSK FR series inch flanged miniature ball bearings, bore 1.191-9.525 mm, in open and shielded (ZZ, ZZS) versions as listed per size.

Key features

  • Outer-ring flange for simple axial location
  • Inch boundary dimensions (values in mm)
  • Open and shielded designations as listed
  • Flange diameter D1 given per row

Specifications

Bearing type Inch flanged miniature ball bearing
Bore range 1.191-9.525 mm
Dimension system Inch (values in mm)
Flange Outer-ring flange, diameter D1
Load ratings Basic dynamic Cr / static C0r
Source NSK Rolling Bearings Catalogue (Korean ed.), p. B44-B45
FR0 d: 1.191 mm | D: 3.967 mm | D1 flange: 5.156 mm | B: 1.588 mm | Cr: 0.138 kN | C0r: 0.035 kN
FR0ZZS d: 1.191 mm | D: 3.967 mm | D1 flange: 5.156 mm | B: 2.38 mm | Cr: 0.138 kN | C0r: 0.035 kN
FR1 d: 1.397 mm | D: 4.762 mm | D1 flange: 5.944 mm | B: 1.984 mm | Cr: 0.231 kN | C0r: 0.066 kN
FR1ZZ d: 1.397 mm | D: 4.762 mm | D1 flange: 5.944 mm | B: 2.779 mm | Cr: 0.231 kN | C0r: 0.066 kN
FR1-4 d: 1.984 mm | D: 6.35 mm | D1 flange: 7.518 mm | B: 2.38 mm | Cr: 0.31 kN | C0r: 0.108 kN
FR1-4ZZS d: 1.984 mm | D: 6.35 mm | D1 flange: 7.518 mm | B: 3.571 mm | Cr: 0.31 kN | C0r: 0.108 kN
FR133 d: 2.38 mm | D: 4.762 mm | D1 flange: 5.944 mm | B: 1.588 mm | Cr: 0.188 kN | C0r: 0.06 kN
FR133ZZS d: 2.38 mm | D: 4.762 mm | D1 flange: 5.944 mm | B: 2.38 mm | Cr: 0.188 kN | C0r: 0.06 kN
FR1-5 d: 2.38 mm | D: 7.938 mm | D1 flange: 9.119 mm | B: 2.779 mm | Cr: 0.55 kN | C0r: 0.175 kN
FR1-5ZZS d: 2.38 mm | D: 7.938 mm | D1 flange: 9.119 mm | B: 3.571 mm | Cr: 0.55 kN | C0r: 0.175 kN
FR144 d: 3.175 mm | D: 6.35 mm | D1 flange: 7.518 mm | B: 2.38 mm | Cr: 0.283 kN | C0r: 0.095 kN
FR144ZZ d: 3.175 mm | D: 6.35 mm | D1 flange: 7.518 mm | B: 2.779 mm | Cr: 0.283 kN | C0r: 0.095 kN
FR2-5 d: 3.175 mm | D: 7.938 mm | D1 flange: 9.119 mm | B: 2.779 mm | Cr: 0.56 kN | C0r: 0.179 kN
FR2-5ZZ d: 3.175 mm | D: 7.938 mm | D1 flange: 9.119 mm | B: 3.571 mm | Cr: 0.56 kN | C0r: 0.179 kN
FR2-6 d: 3.175 mm | D: 9.525 mm | D1 flange: 10.719 mm | B: 2.779 mm | Cr: 0.64 kN | C0r: 0.225 kN
FR2-6ZZS d: 3.175 mm | D: 9.525 mm | D1 flange: 10.719 mm | B: 3.571 mm | Cr: 0.64 kN | C0r: 0.225 kN
FR2 d: 3.175 mm | D: 9.525 mm | D1 flange: 11.176 mm | B: 3.967 mm | Cr: 0.63 kN | C0r: 0.218 kN
FR2ZZ d: 3.175 mm | D: 9.525 mm | D1 flange: 11.176 mm | B: 3.967 mm | Cr: 0.63 kN | C0r: 0.218 kN
FR155 d: 3.967 mm | D: 7.938 mm | D1 flange: 9.119 mm | B: 2.779 mm | Cr: 0.36 kN | C0r: 0.149 kN
FR155ZZS d: 3.967 mm | D: 7.938 mm | D1 flange: 9.119 mm | B: 3.175 mm | Cr: 0.36 kN | C0r: 0.149 kN
FR156 d: 4.762 mm | D: 7.938 mm | D1 flange: 9.119 mm | B: 2.779 mm | Cr: 0.36 kN | C0r: 0.149 kN
FR156ZZS d: 4.762 mm | D: 7.938 mm | D1 flange: 9.119 mm | B: 3.175 mm | Cr: 0.36 kN | C0r: 0.149 kN
FR166 d: 4.762 mm | D: 9.525 mm | D1 flange: 10.719 mm | B: 3.175 mm | Cr: 0.71 kN | C0r: 0.27 kN
FR166ZZ d: 4.762 mm | D: 9.525 mm | D1 flange: 10.719 mm | B: 3.175 mm | Cr: 0.71 kN | C0r: 0.27 kN
FR3 d: 4.762 mm | D: 12.7 mm | D1 flange: 14.351 mm | B: 4.978 mm | Cr: 1.3 kN | C0r: 0.485 kN
FR3ZZ d: 4.762 mm | D: 12.7 mm | D1 flange: 14.351 mm | B: 4.978 mm | Cr: 1.3 kN | C0r: 0.485 kN
FR168 d: 6.35 mm | D: 9.525 mm | D1 flange: 10.719 mm | B: 3.175 mm | Cr: 0.375 kN | C0r: 0.173 kN
FR168ZZ d: 6.35 mm | D: 9.525 mm | D1 flange: 10.719 mm | B: 3.175 mm | Cr: 0.375 kN | C0r: 0.173 kN
FR188 d: 6.35 mm | D: 12.7 mm | D1 flange: 13.894 mm | B: 3.175 mm | Cr: 1.08 kN | C0r: 0.44 kN
FR188ZZ d: 6.35 mm | D: 12.7 mm | D1 flange: 13.894 mm | B: 4.762 mm | Cr: 1.08 kN | C0r: 0.44 kN
FR4B d: 6.35 mm | D: 15.875 mm | D1 flange: 17.526 mm | B: 4.978 mm | Cr: 1.61 kN | C0r: 0.66 kN
FR4BZZ d: 6.35 mm | D: 15.875 mm | D1 flange: 17.526 mm | B: 4.978 mm | Cr: 1.61 kN | C0r: 0.66 kN
FR1810 d: 7.938 mm | D: 12.7 mm | D1 flange: 13.894 mm | B: 3.967 mm | Cr: 0.54 kN | C0r: 0.276 kN
FR1810ZZ d: 7.938 mm | D: 12.7 mm | D1 flange: 13.894 mm | B: 3.967 mm | Cr: 0.54 kN | C0r: 0.276 kN
FR6 d: 9.525 mm | D: 22.225 mm | D1 flange: 24.613 mm | B: 5.558 mm | Cr: 3.35 kN | C0r: 1.41 kN
FR6ZZ d: 9.525 mm | D: 22.225 mm | D1 flange: 24.613 mm | B: 7.142 mm | Cr: 3.35 kN | C0r: 1.41 kN
Miniature BearingsNSK
36 product codes available in this family
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NSK FR Series Inch Flanged Miniature Ball Bearings

Brand NSK·Miniature Bearings

Available part numbers (36)

FR0, FR0ZZS, FR1, FR1ZZ, FR1-4, FR1-4ZZS, FR133, FR133ZZS, FR1-5, FR1-5ZZS + 26 more — see full table ↓

How to order

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Product codes & specifications
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Product codeSpec
FR0d: 1.191 mm | D: 3.967 mm | D1 flange: 5.156 mm | B: 1.588 mm | Cr: 0.138 kN | C0r: 0.035 kN
FR0ZZSd: 1.191 mm | D: 3.967 mm | D1 flange: 5.156 mm | B: 2.38 mm | Cr: 0.138 kN | C0r: 0.035 kN
FR1d: 1.397 mm | D: 4.762 mm | D1 flange: 5.944 mm | B: 1.984 mm | Cr: 0.231 kN | C0r: 0.066 kN
FR1ZZd: 1.397 mm | D: 4.762 mm | D1 flange: 5.944 mm | B: 2.779 mm | Cr: 0.231 kN | C0r: 0.066 kN
FR1-4d: 1.984 mm | D: 6.35 mm | D1 flange: 7.518 mm | B: 2.38 mm | Cr: 0.31 kN | C0r: 0.108 kN
FR1-4ZZSd: 1.984 mm | D: 6.35 mm | D1 flange: 7.518 mm | B: 3.571 mm | Cr: 0.31 kN | C0r: 0.108 kN
FR133d: 2.38 mm | D: 4.762 mm | D1 flange: 5.944 mm | B: 1.588 mm | Cr: 0.188 kN | C0r: 0.06 kN
FR133ZZSd: 2.38 mm | D: 4.762 mm | D1 flange: 5.944 mm | B: 2.38 mm | Cr: 0.188 kN | C0r: 0.06 kN
FR1-5d: 2.38 mm | D: 7.938 mm | D1 flange: 9.119 mm | B: 2.779 mm | Cr: 0.55 kN | C0r: 0.175 kN
FR1-5ZZSd: 2.38 mm | D: 7.938 mm | D1 flange: 9.119 mm | B: 3.571 mm | Cr: 0.55 kN | C0r: 0.175 kN
FR144d: 3.175 mm | D: 6.35 mm | D1 flange: 7.518 mm | B: 2.38 mm | Cr: 0.283 kN | C0r: 0.095 kN
FR144ZZd: 3.175 mm | D: 6.35 mm | D1 flange: 7.518 mm | B: 2.779 mm | Cr: 0.283 kN | C0r: 0.095 kN
FR2-5d: 3.175 mm | D: 7.938 mm | D1 flange: 9.119 mm | B: 2.779 mm | Cr: 0.56 kN | C0r: 0.179 kN
FR2-5ZZd: 3.175 mm | D: 7.938 mm | D1 flange: 9.119 mm | B: 3.571 mm | Cr: 0.56 kN | C0r: 0.179 kN
FR2-6d: 3.175 mm | D: 9.525 mm | D1 flange: 10.719 mm | B: 2.779 mm | Cr: 0.64 kN | C0r: 0.225 kN
FR2-6ZZSd: 3.175 mm | D: 9.525 mm | D1 flange: 10.719 mm | B: 3.571 mm | Cr: 0.64 kN | C0r: 0.225 kN
FR2d: 3.175 mm | D: 9.525 mm | D1 flange: 11.176 mm | B: 3.967 mm | Cr: 0.63 kN | C0r: 0.218 kN
FR2ZZd: 3.175 mm | D: 9.525 mm | D1 flange: 11.176 mm | B: 3.967 mm | Cr: 0.63 kN | C0r: 0.218 kN
FR155d: 3.967 mm | D: 7.938 mm | D1 flange: 9.119 mm | B: 2.779 mm | Cr: 0.36 kN | C0r: 0.149 kN
FR155ZZSd: 3.967 mm | D: 7.938 mm | D1 flange: 9.119 mm | B: 3.175 mm | Cr: 0.36 kN | C0r: 0.149 kN
FR156d: 4.762 mm | D: 7.938 mm | D1 flange: 9.119 mm | B: 2.779 mm | Cr: 0.36 kN | C0r: 0.149 kN
FR156ZZSd: 4.762 mm | D: 7.938 mm | D1 flange: 9.119 mm | B: 3.175 mm | Cr: 0.36 kN | C0r: 0.149 kN
FR166d: 4.762 mm | D: 9.525 mm | D1 flange: 10.719 mm | B: 3.175 mm | Cr: 0.71 kN | C0r: 0.27 kN
FR166ZZd: 4.762 mm | D: 9.525 mm | D1 flange: 10.719 mm | B: 3.175 mm | Cr: 0.71 kN | C0r: 0.27 kN
FR3d: 4.762 mm | D: 12.7 mm | D1 flange: 14.351 mm | B: 4.978 mm | Cr: 1.3 kN | C0r: 0.485 kN
FR3ZZd: 4.762 mm | D: 12.7 mm | D1 flange: 14.351 mm | B: 4.978 mm | Cr: 1.3 kN | C0r: 0.485 kN
FR168d: 6.35 mm | D: 9.525 mm | D1 flange: 10.719 mm | B: 3.175 mm | Cr: 0.375 kN | C0r: 0.173 kN
FR168ZZd: 6.35 mm | D: 9.525 mm | D1 flange: 10.719 mm | B: 3.175 mm | Cr: 0.375 kN | C0r: 0.173 kN
FR188d: 6.35 mm | D: 12.7 mm | D1 flange: 13.894 mm | B: 3.175 mm | Cr: 1.08 kN | C0r: 0.44 kN
FR188ZZd: 6.35 mm | D: 12.7 mm | D1 flange: 13.894 mm | B: 4.762 mm | Cr: 1.08 kN | C0r: 0.44 kN
FR4Bd: 6.35 mm | D: 15.875 mm | D1 flange: 17.526 mm | B: 4.978 mm | Cr: 1.61 kN | C0r: 0.66 kN
FR4BZZd: 6.35 mm | D: 15.875 mm | D1 flange: 17.526 mm | B: 4.978 mm | Cr: 1.61 kN | C0r: 0.66 kN
FR1810d: 7.938 mm | D: 12.7 mm | D1 flange: 13.894 mm | B: 3.967 mm | Cr: 0.54 kN | C0r: 0.276 kN
FR1810ZZd: 7.938 mm | D: 12.7 mm | D1 flange: 13.894 mm | B: 3.967 mm | Cr: 0.54 kN | C0r: 0.276 kN
FR6d: 9.525 mm | D: 22.225 mm | D1 flange: 24.613 mm | B: 5.558 mm | Cr: 3.35 kN | C0r: 1.41 kN
FR6ZZd: 9.525 mm | D: 22.225 mm | D1 flange: 24.613 mm | B: 7.142 mm | Cr: 3.35 kN | C0r: 1.41 kN

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