Japanese Products Corp.
120 Fiske St., Fairfield, CT 06825-5524 US
Phone:203.334.7537 • Fax:203.334.7792
E-Mail: info@e-jpc.com • Web site: www.e-jpc.com
All Categories > Motor Accessories > Flexible Couplings > Helical H Series Stainless Steel Couplings > Item # HR125-12-12  


Item # HR125-12-12, Helical H Series Stainless Steel Couplings

  • High torque capacity
  • High fatigue resistance
  • Corrosion resistant steel (CRES)
The H Series coupling is ideal when high strength, excellent fatigue resistance and high torsional stiff ness is called for in your application. The H Series' premium performance capability is designed for applications requiring a heavy-duty coupling, such as drive systems, small pumps and gear boxes.

  • No maintenance
  • Shaft sizes from 3/32 to 3/4
An array of options, in a variety of diameter sizes, allows you to tailor the A or H Series to your specific applications. A and H Series options include set screw or integral clamp attachments and inch or metric bores.



 Specifications 

Product Type
Coupling

Series
HR

Type
Set Screw Attachment

Material
17-4 PH High Strength Stainless Steel

Finish
Natural

Outside Diameter Designator
125

Outside Diameter (D)
1 1/4 in

Length (L)
1.25 in

Size (+0.002 in/-0.000 in)
0.375 in
9.53 mm

Bore Designator
12

Momentary Dynamic Torque
94 lb·in

Torsional Rate
0.041 degree/lb·in

Inertia
19.4 lb.in.sec2

Screw Size1
1/4 - 28

Seating Torque
65 lb·in

Center Line
0.16 in

Min. Size
0.313 in
7.94 mm

Max. Size
0.625 in
15.88 mm

Max. Bore Diameter
0.669 in
17.00 mm

Bore Depth
0.51 in
12.95 mm

Note
  1. Shaft misalignments:
    Angular 5 degrees
    Parallel Offset 0.030 in. (0.060 in. T.I.R)
    Axial Motion ±0.010 in.
  2. Manufacturing dimensional tolerances unless otherwise specified are:
    fraction ± 1/64
    x.xx ± .01 in.
1 Metric Fasteners available on request



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