FLANGE MINIATURE RADIAL BALL BEARING
Single Row Radial Conrad. Open, Shielded or Sealed

FR SERIES
INCH SIZES


Flanged Miniature Ball Bearing

Inner
Diameter

d

Outer Diameter

D

Flange Diameter
Df
Flange Width
Bf

Radius

r (min.)

Width

B

OPEN

Width

B

ZZ\2RS

Bearing Number

Basic load Ratings

(kgf)

Limiting speeds

x1000RPM

Mounting Dim.

(INCH)

Ball Complement
(INCH)
Dynamic Static
mm inch

mm

inch inch mm inch mm

mm

inch

mm

inch

mm

inch

Open

shield/Sealed

Cr

Cor

Grease

Oil

Li

Lo

Qty

Dim

2.38 0.0937

4.762

0.1875 0.234 5.944 0.018 0.457

0.1

0.0039

2.38

0.0937

2.38

0.0937 FR133 FR133ZZ\2RS

17

5.5

80

95

-

0.1654

7

0.03125
3.175 0.125

6.35

0.25 0.296 7.158 0.023 0.584

0.1

0.0039

2.38

0.0937

2.779

0.1094 FR144 FR144ZZ\2RS

29

10

67

80

0.154

0.226

7

0.03937

7.938

0.3125 0.359 9.119 0.023 0.584

0.1

0.0039

2.78

0.1094

3.571

0.1406 FR2-5 FR2-5ZZ\2RS

57

18

60

67

0.172

0.279

7

0.0625
9.525 0.375 0.422 10.719 0.023 0.584 0.15 0.0059 2.779 0.1094 3.571 0.1406 FR2-6 FR2-6ZZ\2RS 65 24 54 62 0.181 0.3228 7 0.0625
9.525 0.375 0.44 11.176 0.03 0.762 0.3 0.0018 3.967 0.1562 3.967 0.1562 FR2 FR2ZZ\2RS 64 22 56 67 0.19 0.3142 7 0.0625
3.967 0.1562

7.938

0.3125 0.359 9.119 0.023 0.584

0.1

0.0039

2.779

0.1094

3.175

0.125 FR155 FR155Z\2RS

37

15

53

64

0.2177

0.2756

7

0.0394
4.7642 0.1875

7.938

0.3125 0.359 9.119 0.023 0.584

0.1

0.0039

2.779

0.1094

3.175

0.125 FR156 FR156ZZ\2RS

37

15

53

64

0.2177

0.2756

7

0.0394

9.525

0.375 0.422 10.719 0.023 0.584

0.1

0.0039

3.175

0.125

3.175

0.125 FR166 FR166ZZ\2RS

72

28

50

60

0.2343

0.3228

8

0.0625

12.7

0.50 0.565 14.35 0.042 1.067

0.3

0.0018

3.967

0.1562

4.978

0.1960 FR3 FR3ZZ\2RS

133

50

43

53

0.2559

0.4390

7

0.0937
6.35 0.25

9.525

0.375 0.422 10.719 0.023 0.584

0.1

0.0039

3.175

0.125

3.175

0.125 FR168 FR168ZZ\2RS

38

18

48

56

0.2787

0.3369

13

0.0394

12.7

0.50 0.547 13.894 0.023 0.584

0.15

0.0059

3.175

0.125

4.762

0.1875 FR188 FR188ZZ\2RS

110

45

40

50

0.2920

0.443

10

0.0625
15.87 0.625 0.69 17.526 0.042 1.067 0.3 0.0018 4.978 0.1960 4.978 0.1960 FR4 FR4ZZ\2RS 151 63 38 45 0.3681 0.3307 8 0.09375
7.938 0.3125 12.7 0.50 0.5470 13.894 0.031 0.787 0.15 0.0059 3.967 0.1562 3.967 0.1562 FR1810 FR1810ZZ\2RS 55 28 40 48 0.3681 0.4390 11 0.0625
9.525 0.375 22.23 0.875 0.969 24.613 0.062 1.575 0.4 0.0157 5.558 0.2188 7.142 0.2812 FR6 FR6ZZ\2RS 340 145 32 38 0.4685 0.7835 7 0.15625
12.70 0.50 28.575 1.125 1.2252 31.12 0.062 1.575 0.4 0.0157 6.35 0.25 7.938 0.3125 FR8 FR8ZZ\2RS 521 246 27 32 0.6993 0.9291 8 0.18750

Materials:

Standard Chrome Steel SAE-52100

SS Stainless Steel AISI-440

For Stainless Steel AISI-440 add "SS" or "S" in prefix numbering; Example SSFR6-ZZ, SFR4-ZZ, SFR166-2RS or SFR3-2RS etc.

PLEASE NOTE: Stainless Steel Miniature Ball Bearing Dimensions will be same as stated in this catalog.

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