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Precision lock nut with prevailing torque type TWIN FU-NUT-TFU02SC
Precision lock nut with prevailing torque type TWIN FU-NUT-Fuji Precision Co., Ltd.

Precision lock nut with prevailing torque type TWIN FU-NUT
Fuji Precision Co., Ltd.


About This Product

■Features

・Improved locking performance of FINE U-NUT ・Connection is completed by simply tightening the nut. ・Reusable ・Thread accuracy ISO4H ・The surface run-out accuracy of the seat surface against the screw is on the order of 1,000 minutes (mm)

■General name

Precision bearing nut Adapter nut Grooved round nut Precision lock nut

■Supported markets

・Specially equipped vehicles, construction machinery ・Agricultural equipment ・Transportation machine ・Machine tools ・Industrial equipment ・Electrical equipment

■Structure and action

"TWIN FU-NUT" has two friction rings and a spacer arranged and fixed to the top of the nut. These two friction rings are arranged so that force P and force P' generated by the spring action act equally in the symmetrical direction of the male screw axis, and the structure is such that the bearing can be fastened with an even surface load F. Masu.

■Comparison of TWIN FU-NUT and conventional products

・There are 3 basic parts. ・Simply insert and tighten.

■Steel friction ring

270° ring

■Thread accuracy

ISO4H screws and seat are processed at the same time.

■Size

M15~M50 (Available up to M110) *Pitch: Fine thread *Other special sizes

■Shape

slotted round nut

■Material

・Nut body...S45C (tempered) ・Friction ring spacer...SUS301

■Surface treatment

Zinc phosphate film

  • Product

    Precision lock nut with prevailing torque type TWIN FU-NUT

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9 Models of Precision lock nut with prevailing torque type TWIN FU-NUT

Click on the part number for more information about each product

Image Part Number Price (excluding tax) Allowable axial static load (kN) Groove depth (h1) Groove width tolerance (b) Groove width standard dimension (b) Groove width tolerance (g) Groove width across standard dimensions (g) Seat diameter tolerance (φd1) Seat diameter standard dimension (φd1) Outer diameter tolerance (φd2) Outer diameter standard dimension (φd2) Unit weight (g) approx. Overall height tolerance (h) Overall height standard dimensions (h) Thread height (m) approx. Extra length of male thread ℓmin D×p
Precision lock nut with prevailing torque type TWIN FU-NUT-Part Number-TFU02SC

TFU02SC

Available upon quote

34.1

1.8

±0.2

4

0~0.5

21.4

0~0.3

Twenty one

0~0.5

Twenty five

19

±0.5

9.9

7

10.5

M15 × 1

Precision lock nut with prevailing torque type TWIN FU-NUT-Part Number-TFU03SC

TFU03SC

Available upon quote

38.6

2

±0.2

4

0~0.5

Twenty four

0~0.3

23.5

0~0.5

28

Twenty four

±0.5

10.1

7

10.5

M17 × 1

Precision lock nut with prevailing torque type TWIN FU-NUT-Part Number-TFU04SC

TFU04SC

Available upon quote

59.4

2

±0.2

4

0~0.5

28

0~0.3

27

0~0.5

32

38

±0.5

12.3

9

12.5

M20 × 1

Precision lock nut with prevailing torque type TWIN FU-NUT-Part Number-TFU05SC

TFU05SC

Available upon quote

80.8

2

±0.2

5

0~0.5

34

0~0.3

33

0~0.5

38

59

±0.5

14.2

10

15.3

M25 × 1.5

Precision lock nut with prevailing torque type TWIN FU-NUT-Part Number-TFU06SC

TFU06SC

Available upon quote

97

2

±0.2

5

0~0.5

41

0~0.3

40

0~0.5

45

82

±0.5

14.3

10

15.3

M30×1.5

Precision lock nut with prevailing torque type TWIN FU-NUT-Part Number-TFU07SC

TFU07SC

Available upon quote

137.8

2

±0.2

5

0~0.5

48

0~0.3

47

0~0.5

52

125

±0.5

16.5

12

17.3

M35 × 1.5

Precision lock nut with prevailing torque type TWIN FU-NUT-Part Number-TFU08SC

TFU08SC

Available upon quote

171.4

2.5

±0.2

6

0~0.5

53

0~0.3

52

0~0.5

58

150

±0.5

17.6

13

18.3

M40×1.5

Precision lock nut with prevailing torque type TWIN FU-NUT-Part Number-TFU09SC

TFU09SC

Available upon quote

224.5

2.5

±0.2

6

0~0.5

60

0~0.3

59

0~0.5

65

210

±0.5

19.7

15

20.3

M45 × 1.5

Precision lock nut with prevailing torque type TWIN FU-NUT-Part Number-TFU10SC

TFU10SC

Available upon quote

266.8

2.5

±0.2

6

0~0.5

65

0~0.3

64

0~0.5

70

255

±0.5

20.8

16

21.3

M50×1.5

Click on the part number for more information about each product

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