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FAFNIR SUPERPRECISION BEARINGS

Tolerance

Tolerance

+.0000"

+.0000"

+.0mm

+.0mm

to minus

to minus

Extra-Light High Speed 2MMV99100WN & 3MMV99100WN Series

Super High Precision MMV (HG): Superprecision bearings are manufactured to a HG tolerance class, with running accuracy and performance meeting ABEC-9 (ISO P2) while maintaining noncritical features at ABEC-7 (ISO P4) ie. Bore, OD and width.

WN Construction: This design incorporates a low shoulder on the non-thrust side of both the inner and outer rings. The maximum complement of balls is separated by a one-piece cage which is piloted against the ground thrust shoulder land of the outer ring.

To specify a ceramic hybrid bearing, add “C” to the part number, after the prefix that specifies precision type.

  • m

5 6 6 6 6

7 7 7 7 7

8 8 8 8 8

Bearing

Outside

Number

Bore

Diameter

99106WN

1.1811

30

2.0

5

2.1654

55

3.0

99107WN

1.3780

35

2.5

6

2.4409

62

3.0

99108WN

1.5748

40

2.5

6

2.6772

68

3.0

99109WN

1.7717

45

2.5

6

2.9528

75

3.0

99110WN

1.9685

50

2.5

6

3.1496

80

3.0

DIMENSIONS – TOLERANCES All Inch tolerance in .0001 units

3.0 3.0 3.0 3.0 3.0

3MMV

in.

mm

in.

m

in.

mm

99101WN

0.4724

12

1.5

4

1.1024

28

99102WN

0.5906

15

1.5

4

1.2598

32

99103WN

0.6693

17

1.5

4

1.3780

35

99104WN

0.7874

20

2.0

5

1.6535

42

99105WN

0.9843

25

2.0

5

1.8504

47

99111WN

2.1654

55

3.0

7

3.5433

90

99112WN

2.3622

60

3.0

7

3.7402

95

99113WN

2.5591

65

3.0

7

3.9370

100

99114WN

2.7559

70

3.0

7

4.3307

110

99115WN

2.9528

75

3.0

7

4.5276

115

in.

2.0 2.5 2.5 2.5 2.5

2MMV &

  • *

    Refer to page E4 for width tolerance of preloaded bearings.

** ABMA std. 20 (ras max

).

d

D

C

0.3150

8

31

80

0.012

0.3

9

3 16

0.3543

9

31

80

0.012

0.3

11

3 16

0.3937

10

31

80

0.012

0.3

13

3 16

0.4724

12

47

120

0.024

0.6

11

1 4

0.4724

12

47

120

0.024

0.6

13

1 4

0.5118

13

47

120

0.039

1.0

16

1 4

0.5512

14

47

120

0.039

1.0

21

7 32

0.5906

15

47

120

0.039

1.0

24

7 32

0.6299

16

47

120

0.039

1.0

23

1 4

0.6299

16

47

120

0.039

1.0

25

1 4

in.

0.7087

18

59

150

0.039

1.0

25

9 32

0.7087

18

59

150

0.039

1.0

26

9 32

0.7087

18

59

150

0.039

1.0

28

9 32

0.7874

20

59

150

0.039

1.0

28

5 16

0.7874

20

59

150

0.039

1.0

30

5 16

mm

in.

  • m

in.

mm

Qty.

(Dia.) in.

Width *

Tolerance +.0000" +.0mm to minus

Bearing Corner Bearing Corner will Clear **

Maximum

Ball

Fillet Radius

Complement

24

102800

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