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Since 1958
Helical Products Company, Inc.

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We manufacture single piece Flexible Couplings,  U-Joints, Machined Springs, and Power Transmission Couplings utilizing HELI-CAL® Flexure technology

 

 

HELICAL DS SERIES, Aluminum, Technical Data

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Basic Model Number

Dimensional Information

Standard Bore Diameters

Performance Data

Inertia

Screw Size

Seating Torque

Center Line

Integral Clamp Attachment

Outside Diameter Designator

D
Outside Diameter (in.)

L Length (in.)

(+.002in/-.000in) Note 6  

Momentary Dynamic Torque Note 2 (lbin)

Torsional Rate (degree/lbin)

x.10-4 (lbinsec2) Note 7

Integral Clamp
Note 4

(lbin)

(in)

Size
   in.& (mm)

Bore Designator (1/32nd in)

DSAC

075

¾

1.25

 0.188       (4.78)
 0.250       (6.35)

6
8

14
12

0.30
0.40

0.091

4-40

10

.12

DSAC

100

1

1.50

  0.250       (6.35)
  0.313       (7.95)
  0.375       (9.53)

8
10
12

31
29
25

0.13
0.16
0.19

0.35

6-32

19

.15

DSAC

125

1¼

1.75

  0.313       (7.95)
  0.375       (9.53)
  0.500     (12.70)
  0.625     (15.88)

10
12
  16*
  20*

61
58
47
35

0.062
0.080
0.12
0.19

0.98

10-24

50

.22

DSAC

150

1½

2.25

  0.375       (9.53)
  0.500     (12.70)
  0.625     (15.88)

12
16
20

130
115
94

0.030
0.042
0.062

2.7

10-24

50

.22

DSAC

200

2

2.50

  0.500     (12.70)
  0.625     (15.88)
  0.750     (19.05)

16
20
24

234
215
190

0.016
0.020
0.026

9.5

1/4–20

120

.26

*Refer to note 8
Notes

1. Shaft misalignments:
    Angular 3 degrees
    Parallel offset .010 in. (.020 in. T.I.R.)
    Axial Motion + .008 in.

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.

4. Metric fasteners available on request.

5. Manufacturing dimensional tolerances unless otherwise specified are:
    fraction +1/64
    x.xx +.01

6. Click here for other available bore dimensions.

7. Inertia is based on smallest standard bore diameter.

8. This bore size requires an operating clearance diameter greater than coupling outside diameter.

Special Bore Configurations ·  DS Series Flexible Couplings  · Standard Coupling Guide · Home 

 

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 901 W. McCoy Lane · P.O. Box 1069 · Santa Maria, CA 93456-1069
Phone: 805-928-3851 · Fax: 805-928-2369
 sales@heli-cal.com · engineering@heli-cal.com

Copyright © 1997-2007 Helical Products Company, Inc. -- All rights reserved.