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 W Series Stainless Steel Couplings > Item # W720-5mm-4mm  


Item # W720-5mm-4mm, Helical W Series Stainless Steel Couplings

  • Metric dimensions and fasteners
  • Available in 7075-T6 aluminum alloy or 17-4 PH corrosion- resistant steel
  • General purpose
If you are working in the metric world, the W Series is for you. It combines the best features of the A Series and the H Series, with the convenience of metric dimensions and fasteners for your metric based designs. The W Series can be used in a wide range of applications from driving components with light torque requirements, such as encoders and tachometers (aluminum), to lead screws and pumps requiring greater torque (stainless steel).



 Specifications 

Product Type
Coupling

Series
W7

Material
17-4 High Strength Stainless Steel

Finish
Natural

Outside Diameter Designator
20

Outside Diameter (D)
20 mm

Length (L)
20 mm

Bore Diameter
5.00 mm

Bore Designator
5 mm

Momentary Dynamic Torque
2.5 N·m

Torsional Rate
1.3 degree/N·m

Inertia
0.22 x 10-5 kg.cm.sec2

Screw Size
M3 x 0.5

Seating Torque
1.0 N·m

Center Line
2.5 mm

Min. Size
4.00 mm

Max. Size
6.35 mm

Max. Bore Diameter
14.00 mm

Bore Depth
4.85 mm

Features
  • Metric dimensions and fasteners
  • Available in 7075-T6 aluminum alloy or 17-4 PH corrosion-resistant steel
  • General purpose
If you are working in the metric world, the W Series is for you. It combines the best features of the A Series and the H Series, with the convenience of metric dimensions and fasteners for your metric based designs. The W-Series can be used in a wide range of applications from driving components with light torque requirements, such as encoders and tachometers (aluminum), to lead screws and pumps requiring greater torque (stainless steel).

Note
  1. Shaft misalignments:
    Angular 5 degrees
    Parallel Offset 25 mm. (0.50 mm T.I.R)
    Axial Motion ±0.25 mm.
  2. Manufacturing dimensional tolerances unless otherwise specified are:
    x ± 0.5 mm
    x.x ± 0.25 mm
  3. keyways available on the 40 mm and 50 mm OD only.



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