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HELICAL W Series, Aluminum, Technical Data

Basic Model Number

Dimensional Information

Standard Bore Diameters

Performance Data

Inertia

Screw Size

Seating Torque

Center Line

Integral Clamp Attachment

Set Screw Attachment

Outside Diameter Designator

D
Outside Diameter
(mm)

L
Length
(mm)

(+0.05mm/-0.00mm)
Note 5

Momentary Dynamic
Torque
Note 2
(Nm)

Torsional Rate
(degree/Nm)

x.10-4
(kgcmsec2)
Note 6

Integral Clamp

Set Screw

(Nm)

(mm)

Size
(mm)

 Bore Designator

WAC

 

15

15mm

22

  3.00
  4.00
  5.00

3 mm
4 mm
5 mm

0.71
0.66
0.59

5.1
7.2
10.0

0.028

M2x.4

 

0.5

2.5

 

WA

20

0.025

 

M3x.5

1.0

2.5

WAC

 

20

20mm

28

  4.00
  5.00
  6.00

4 mm
5 mm
6 mm

1.3
1.2
1.1

2.7
3.5
4.5

0.11

M3x.5

 

2.0

3.8

 

WA

20

0.079

 

M3x.5

1.0

2.5

WAC

 

25

25mm

30

  6.00
  7.00
  8.00
  9.00
10.00

6 mm
7 mm
8 mm
9 mm
10 mm

2.9
2.8
2.6
2.4
2.2

1.5
1.8
2.2
2.8
3.5

0.30

M3x.5

 

2.0

3.8

 

WA

24

0.24

 

M4x.7

2.1

3.0

WAC

 

30

30mm

38

  9.00
10.00
11.00
12.00

9 mm
10 mm
11 mm
12 mm

4.9
4.6
4.3
4.0

1.1
1.3
1.6
1.9

0.78

M4x.7

 

4.7

5.0

 

WA

30

0.60

 

M5x.8

4.7

3.5

WAC

 

40

40mm

50

12.00
13.00
14.00
15.00
16.00

12 mm
13 mm
14 mm
15 mm
16 mm

12
11
11
10
9.7

0.45
0.51
0.59
0.67
0.78

3.3

M5x.8

 

9.5

5.8

 

WA

50

3.3

 

M6x1

7.7

6.7

WAC

 

50

50mm

54

14.00
16.00
18.00
19.00
20.00

14 mm
16 mm
18 mm
19 mm
20 mm

19
18
17
16
15

0.25
0.31
0.39
0.43
0.49

7.6

M6x1

 

16

6.7

 

WA

54

7.6

 

M6x1

7.7

7.5

HELICAL W Series, Stainless Steel, Technical Data


Basic Mode Number


Dimensional
Information


Standard Bore
Diameters


Performance Data


Inertia


Screw Size

Seating Torque

Center
Line

Integral Clamp Attachment

Set Screw Attachment

Outside Diameter Designator

 

D
Outside Diameter
(mm)

L
Length
(mm)

(+0.05mm/-0.00mm)
Note 5

Momentary Dynamic Torque
Note 2
(Nm)

Torsional Rate
(degree/Nm)

x.10-4
(kgcmsec2)
Note 6

Integral Clamp

Set Screw

(Nm)

(mm)

Size
(mm) 

Bore Designator

W7C

 

15

15mm

22

 3.00
 4.00
 5.00

3 mm
4 mm
5 mm

1.4
1.3
1.2

1.9
2.6
3.7

0.078

M2x.4

 

0.5

2.5

 

W7

20

0.070

 

M3x.5

1.0

2.5

W7C

 

20

20mm

28

 4.00
 5.00
 6.00

4 mm
5 mm
6 mm

2.6
2.5
2.3

0.99
1.3
1.6

0.32

M3x.5

 

2.0

3.8

 

W7

20

0.22

 

M3x.5

1.0

2.5

W7C

 

25

25mm

30

 6.00
 7.00
 8.00
 9.00
10.00

6 mm
7 mm
8 mm
9 mm
10 mm

5.7
5.5
5.1
4.7
4.3

0.54
0.66
0.82
1.0
1.3

0.84

M3x.5

 

2.0

3.8

 

W7

24

0.66

 

M4x.7

2.1

3.0

W7C

 

30

30mm

38

 9.00
10.00
11.00
12.00

9 mm
10 mm
11 mm
12 mm

9.5
8.9
8.3
7.7

0.40
0.48
0.58
0.70

2.2

M4x.7

 

4.7

5.0

 

W7

30

1.7

 

M5x.8

4.7

3.5

W7C

 

40

40mm

50

12.00
13.00
14.00
15.00
16.00

12 mm
13 mm
14 mm
15 mm
16 mm

23
22
21
20
19

0.16
0.19
0.21
0.24
0.28

9.2

M5x.8

 

9.5

5.8

 

W7

50

9.2

 

M6x1

7.7

6.7

W7C

 

50

50mm

54

14.00
16.00
18.00
19.00
20.00

14 mm
16 mm
18 mm
19 mm
20 mm

37
35
33
31
30

0.092
0.11
0.14
0.16
0.18

21

M6x1

 

16

6.7

 

W7

54

21

 

M6x1

7.7

7.5

Notes

1. Shaft misalignments:
    Angular 5 degrees
    Parallel offset 0.25 mm (0.50 mm T.I.R.)
    Axial motion + .25 mm.

2. Dynamic torque ratings are momentary values. For non-reversing applications, divide by 2. Divide by 4 for
    reversing applications. Should the torque ratings be marginal for your application, contact us for analysis.

3. Material : 7075-T6 aluminum alloy
    Finish: clear anodize

or   Material: 17-4PH high-strength stainless steel.

    Finish: natural

4. Manufacturing dimensional tolerances unless otherwise specified are:
    x + .5 mm
    x.x + .25 mm

5. Click Here for other available bore dimensions.

6. Inertia is based on smallest standard bore diameter.

7. Keyways available on the 40mm and 50mm OD only.