Elinco International JPC, Inc.Japanese Products Corp.
Elinco International JPC, Inc. – Corporate Headquarters
1525 Kings Highway East
Fairfield, CT 06824
Phone: 203.334.7537
Fax: 203.334.7792
Email: info@e-jpc.com
Website: www.e-jpc.com
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  • 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).
Helical W Series Aluminum Couplings
Unit of Measure
1 

Item #

Outside Diameter Designator

Bore Designator

Momentary Dynamic Torque

Torsional Rate

Set Screw

WAC15-3mm-3mm N/A 15 N/A 3 mm N/A 0.71 N·m N/A 5.1 degree/N·m N/A M2 x 0.4
WAC15-4mm-3mm N/A 15 N/A 4 mm N/A 0.66 N·m N/A 7.2 degree/N·m N/A M2 x 0.4
WAC15-4mm-4mm N/A 15 N/A 4 mm N/A 0.66 N·m N/A 7.2 degree/N·m N/A M2 x 0.4
WAC15-5mm-3mm N/A 15 N/A 5 mm N/A 0.59 N·m N/A 10.0 degree/N·m N/A M2 x 0.4
WAC15-5mm-4mm N/A 15 N/A 5 mm N/A 0.59 N·m N/A 10.0 degree/N·m N/A M2 x 0.4
WAC15-5mm-5mm N/A 15 N/A 5 mm N/A 0.59 N·m N/A 10.0 degree/N·m N/A M2 x 0.4
WAC20-4mm-4mm N/A 20 N/A 4 mm N/A 1.3 N·m N/A 2.7 degree/N·m N/A M3 x 0.5
WAC20-5mm-4mm N/A 20 N/A 5 mm N/A 1.2 N·m N/A 3.5 degree/N·m N/A M3 x 0.5
WAC20-5mm-5mm N/A 20 N/A 5 mm N/A 1.2 N·m N/A 3.5 degree/N·m N/A M3 x 0.5
WAC20-6mm-4mm N/A 20 N/A 6 mm N/A 1.1 N·m N/A 4.5 degree/N·m N/A M3 x 0.5
WAC20-6mm-5mm N/A 20 N/A 6 mm N/A 1.1 N·m N/A 4.5 degree/N·m N/A M3 x 0.5
WAC20-6mm-6mm N/A 20 N/A 6 mm N/A 1.1 N·m N/A 4.5 degree/N·m N/A M3 x 0.5
WAC25-6mm-6mm N/A 25 N/A 6 mm N/A 2.9 N·m N/A 1.5 degree/N·m N/A M3 x 0.5
WAC25-7mm-6mm N/A 25 N/A 7 mm N/A 2.8 N·m N/A 1.8 degree/N·m N/A M3 x 0.5
WAC25-7mm-7mm N/A 25 N/A 7 mm N/A 2.8 N·m N/A 1.8 degree/N·m N/A M3 x 0.5
WAC25-8mm-6mm N/A 25 N/A 8 mm N/A 2.6 N·m N/A 2.2 degree/N·m N/A M3 x 0.5
WAC25-8mm-7mm N/A 25 N/A 8 mm N/A 2.6 N·m N/A 2.2 degree/N·m N/A M3 x 0.5
WAC25-8mm-8mm N/A 25 N/A 8 mm N/A 2.6 N·m N/A 2.2 degree/N·m N/A M3 x 0.5
WAC25-9mm-6mm N/A 25 N/A 9 mm N/A 2.4 N·m N/A 2.8 degree/N·m N/A M3 x 0.5
WAC25-9mm-7mm N/A 25 N/A 9 mm N/A 2.4 N·m N/A 2.8 degree/N·m N/A M3 x 0.5
WAC25-9mm-8mm N/A 25 N/A 9 mm N/A 2.4 N·m N/A 2.8 degree/N·m N/A M3 x 0.5
WAC25-9mm-9mm N/A 25 N/A 9 mm N/A 2.4 N·m N/A 2.8 degree/N·m N/A M3 x 0.5
WAC25-10mm-6mm N/A 25 N/A 10 mm N/A 2.2 N·m N/A 3.5 degree/N·m N/A M3 x 0.5
WAC25-10mm-7mm N/A 25 N/A 10 mm N/A 2.2 N·m N/A 3.5 degree/N·m N/A M3 x 0.5
WAC25-10mm-8mm N/A 25 N/A 10 mm N/A 2.2 N·m N/A 3.5 degree/N·m N/A M3 x 0.5
WAC25-10mm-9mm N/A 25 N/A 10 mm N/A 2.2 N·m N/A 3.5 degree/N·m N/A M3 x 0.5
WAC25-10mm-10mm N/A 25 N/A 10 mm N/A 2.2 N·m N/A 3.5 degree/N·m N/A M3 x 0.5
WAC30-9mm-9mm N/A 30 N/A 9 mm N/A 4.9 N·m N/A 1.1 degree/N·m N/A M4 x 0.7
WAC30-10mm-9mm N/A 30 N/A 10 mm N/A 4.6 N·m N/A 1.3 degree/N·m N/A M4 x 0.7
WAC30-10mm-10mm N/A 30 N/A 10 mm N/A 4.6 N·m N/A 1.3 degree/N·m N/A M4 x 0.7
WAC30-11mm-9mm N/A 30 N/A 11 mm N/A 4.3 N·m N/A 1.6 degree/N·m N/A M4 x 0.7
WAC30-11mm-10mm N/A 30 N/A 11 mm N/A 4.3 N·m N/A 1.6 degree/N·m N/A M4 x 0.7
WAC30-11mm-11mm N/A 30 N/A 11 mm N/A 4.3 N·m N/A 1.6 degree/N·m N/A M4 x 0.7
WAC30-12mm-9mm N/A 30 N/A 12 mm N/A 4.0 N·m N/A 1.9 degree/N·m N/A M4 x 0.7
WAC30-12mm-10mm N/A 30 N/A 12 mm N/A 4.0 N·m N/A 1.9 degree/N·m N/A M4 x 0.7
WAC30-12mm-11mm N/A 30 N/A 12 mm N/A 4.0 N·m N/A 1.9 degree/N·m N/A M4 x 0.7
WAC30-12mm-12mm N/A 30 N/A 12 mm N/A 4.0 N·m N/A 1.9 degree/N·m N/A M4 x 0.7
WAC40-12mm-12mm N/A 40 N/A 12 mm N/A 12 N·m N/A 0.45 degree/N·m N/A M5 x 0.8
WAC40-13mm-12mm N/A 40 N/A 13 mm N/A 11 N·m N/A 0.51 degree/N·m N/A M5 x 0.8
WAC40-13mm-13mm N/A 40 N/A 13 mm N/A 11 N·m N/A 0.51 degree/N·m N/A M5 x 0.8
WAC40-14mm-12mm N/A 40 N/A 14 mm N/A 11 N·m N/A 0.59 degree/N·m N/A M5 x 0.8
WAC40-14mm-13mm N/A 40 N/A 14 mm N/A 11 N·m N/A 0.59 degree/N·m N/A M5 x 0.8
WAC40-14mm-14mm N/A 40 N/A 14 mm N/A 11 N·m N/A 0.59 degree/N·m N/A M5 x 0.8
WAC40-15mm-12mm N/A 40 N/A 15 mm N/A 10 N·m N/A 0.67 degree/N·m N/A M5 x 0.8
WAC40-15mm-13mm N/A 40 N/A 15 mm N/A 10 N·m N/A 0.67 degree/N·m N/A M5 x 0.8
WAC40-15mm-14mm N/A 40 N/A 15 mm N/A 10 N·m N/A 0.67 degree/N·m N/A M5 x 0.8
WAC40-15mm-15mm N/A 40 N/A 15 mm N/A 10 N·m N/A 0.67 degree/N·m N/A M5 x 0.8
WAC40-16mm-12mm N/A 40 N/A 16 mm N/A 9.7 N·m N/A 0.78 degree/N·m N/A M5 x 0.8
WAC40-16mm-13mm N/A 40 N/A 16 mm N/A 9.7 N·m N/A 0.78 degree/N·m N/A M5 x 0.8
WAC40-16mm-14mm N/A 40 N/A 16 mm N/A 9.7 N·m N/A 0.78 degree/N·m N/A M5 x 0.8
WAC40-16mm-15mm N/A 40 N/A 16 mm N/A 9.7 N·m N/A 0.78 degree/N·m N/A M5 x 0.8
WAC40-16mm-16mm N/A 40 N/A 16 mm N/A 9.7 N·m N/A 0.78 degree/N·m N/A M5 x 0.8
WAC50-14mm-14mm N/A 50 N/A 14 mm N/A 19 N·m N/A 0.25 degree/N·m N/A M6 x 1
WAC50-16mm-14mm N/A 50 N/A 16 mm N/A 18 N·m N/A 0.31 degree/N·m N/A M6 x 1
WAC50-16mm-16mm N/A 50 N/A 16 mm N/A 18 N·m N/A 0.31 degree/N·m N/A M6 x 1
WAC50-18mm-14mm N/A 50 N/A 18 mm N/A 17 N·m N/A 0.39 degree/N·m N/A M6 x 1
WAC50-18mm-16mm N/A 50 N/A 18 mm N/A 17 N·m N/A 0.39 degree/N·m N/A M6 x 1
WAC50-18mm-18mm N/A 50 N/A 18 mm N/A 17 N·m N/A 0.39 degree/N·m N/A M6 x 1
WAC50-19mm-14mm N/A 50 N/A 19 mm N/A 16 N·m N/A 0.43 degree/N·m N/A M6 x 1
WAC50-19mm-16mm N/A 50 N/A 19 mm N/A 16 N·m N/A 0.43 degree/N·m N/A M6 x 1
WAC50-19mm-18mm N/A 50 N/A 19 mm N/A 16 N·m N/A 0.43 degree/N·m N/A M6 x 1
WAC50-19mm-19mm N/A 50 N/A 19 mm N/A 16 N·m N/A 0.43 degree/N·m N/A M6 x 1
WAC50-20mm-14mm N/A 50 N/A 20 mm N/A 15 N·m N/A 0.49 degree/N·m N/A M6 x 1
WAC50-20mm-16mm N/A 50 N/A 20 mm N/A 15 N·m N/A 0.49 degree/N·m N/A M6 x 1
WAC50-20mm-18mm N/A 50 N/A 20 mm N/A 15 N·m N/A 0.49 degree/N·m N/A M6 x 1
WAC50-20mm-19mm N/A 50 N/A 20 mm N/A 15 N·m N/A 0.49 degree/N·m N/A M6 x 1
WAC50-20mm-20mm N/A 50 N/A 20 mm N/A 15 N·m N/A 0.49 degree/N·m N/A M6 x 1
WA15-3mm-3mm N/A 15 N/A 3 mm N/A 0.71 N·m N/A 5.1 degree/N·m N/A M3 x 0.5
WA15-4mm-3mm N/A 15 N/A 4 mm N/A 0.66 N·m N/A 7.2 degree/N·m N/A M3 x 0.5
WA15-4mm-4mm N/A 15 N/A 4 mm N/A 0.66 N·m N/A 7.2 degree/N·m N/A M3 x 0.5
WA15-5mm-3mm N/A 15 N/A 5 mm N/A 0.59 N·m N/A 10.0 degree/N·m N/A M3 x 0.5
WA15-5mm-4mm N/A 15 N/A 5 mm N/A 0.59 N·m N/A 10.0 degree/N·m N/A M3 x 0.5
WA15-5mm-5mm N/A 15 N/A 5 mm N/A 0.59 N·m N/A 10.0 degree/N·m N/A M3 x 0.5
WA20-4mm-4mm N/A 20 N/A 4 mm N/A 1.3 N·m N/A 2.7 degree/N·m N/A M3 x 0.5
WA20-5mm-4mm N/A 20 N/A 5 mm N/A 1.2 N·m N/A 3.5 degree/N·m N/A M3 x 0.5
WA20-5mm-5mm N/A 20 N/A 5 mm N/A 1.2 N·m N/A 3.5 degree/N·m N/A M3 x 0.5
WA20-6mm-4mm N/A 20 N/A 6 mm N/A 1.1 N·m N/A 4.5 degree/N·m N/A M3 x 0.5
WA20-6mm-5mm N/A 20 N/A 6 mm N/A 1.1 N·m N/A 4.5 degree/N·m N/A M3 x 0.5
WA20-6mm-6mm N/A 20 N/A 6 mm N/A 1.1 N·m N/A 4.5 degree/N·m N/A M3 x 0.5
WA25-6mm-6mm N/A 25 N/A 6 mm N/A 2.9 N·m N/A 1.5 degree/N·m N/A M4 x 0.7
WA25-7mm-6mm N/A 25 N/A 7 mm N/A 2.8 N·m N/A 1.8 degree/N·m N/A M4 x 0.7
WA25-7mm-7mm N/A 25 N/A 7 mm N/A 2.8 N·m N/A 1.8 degree/N·m N/A M4 x 0.7
WAC25-7.94mm-7.94mm N/A 25 N/A N/A 0.35 N·m N/A N/A
WA25-8mm-6mm N/A 25 N/A 8 mm N/A 2.6 N·m N/A 2.2 degree/N·m N/A M4 x 0.7
WA25-8mm-7mm N/A 25 N/A 8 mm N/A 2.6 N·m N/A 2.2 degree/N·m N/A M4 x 0.7
WA25-8mm-8mm N/A 25 N/A 8 mm N/A 2.6 N·m N/A 2.2 degree/N·m N/A M4 x 0.7
WA25-9mm-6mm N/A 25 N/A 9 mm N/A 2.4 N·m N/A 2.8 degree/N·m N/A M4 x 0.7
WA25-9mm-7mm N/A 25 N/A 9 mm N/A 2.4 N·m N/A 2.8 degree/N·m N/A M4 x 0.7
WA25-9mm-8mm N/A 25 N/A 9 mm N/A 2.4 N·m N/A 2.8 degree/N·m N/A M4 x 0.7
WA25-9mm-9mm N/A 25 N/A 9 mm N/A 2.4 N·m N/A 2.8 degree/N·m N/A M4 x 0.7
WA25-10mm-6mm N/A 25 N/A 10 mm N/A 2.2 N·m N/A 3.5 degree/N·m N/A M4 x 0.7
WA25-10mm-7mm N/A 25 N/A 10 mm N/A 2.2 N·m N/A 3.5 degree/N·m N/A M4 x 0.7
WA25-10mm-8mm N/A 25 N/A 10 mm N/A 2.2 N·m N/A 3.5 degree/N·m N/A M4 x 0.7
WA25-10mm-9mm N/A 25 N/A 10 mm N/A 2.2 N·m N/A 3.5 degree/N·m N/A M4 x 0.7
WA25-10mm-10mm N/A 25 N/A 10 mm N/A 2.2 N·m N/A 3.5 degree/N·m N/A M4 x 0.7
WAC25-12-12 N/A 25 N/A N/A 1.19 N·m N/A N/A
WA30-9mm-9mm N/A 30 N/A 9 mm N/A 4.9 N·m N/A 1.1 degree/N·m N/A M5 x 0.8
WA30-10mm-9mm N/A 30 N/A 10 mm N/A 4.6 N·m N/A 1.3 degree/N·m N/A M5 x 0.8
WA30-10mm-10mm N/A 30 N/A 10 mm N/A 4.6 N·m N/A 1.3 degree/N·m N/A M5 x 0.8
WA30-11mm-9mm N/A 30 N/A 11 mm N/A 4.3 N·m N/A 1.6 degree/N·m N/A M5 x 0.8
WA30-11mm-10mm N/A 30 N/A 11 mm N/A 4.3 N·m N/A 1.6 degree/N·m N/A M5 x 0.8
WA30-11mm-11mm N/A 30 N/A 11 mm N/A 4.3 N·m N/A 1.6 degree/N·m N/A M5 x 0.8
WAC30-11.91mm-11.91mm N/A 30 N/A N/A 1.64 N·m N/A N/A
WA30-12mm-9mm N/A 30 N/A 12 mm N/A 4.0 N·m N/A 1.9 degree/N·m N/A M5 x 0.8
WA30-12mm-10mm N/A 30 N/A 12 mm N/A 4.0 N·m N/A 1.9 degree/N·m N/A M5 x 0.8
WA30-12mm-11mm N/A 30 N/A 12 mm N/A 4.0 N·m N/A 1.9 degree/N·m N/A M5 x 0.8
WA30-12mm-12mm N/A 30 N/A 12 mm N/A 4.0 N·m N/A 1.9 degree/N·m N/A M5 x 0.8
WA40-12mm-12mm N/A 40 N/A 12 mm N/A 12 N·m N/A 0.45 degree/N·m N/A M6 x 1
WA40-13mm-12mm N/A 40 N/A 13 mm N/A 11 N·m N/A 0.51 degree/N·m N/A M6 x 1
WA40-13mm-13mm N/A 40 N/A 13 mm N/A 11 N·m N/A 0.51 degree/N·m N/A M6 x 1
WA40-14mm-12mm N/A 40 N/A 14 mm N/A 11 N·m N/A 0.59 degree/N·m N/A M6 x 1
WA40-14mm-13mm N/A 40 N/A 14 mm N/A 11 N·m N/A 0.59 degree/N·m N/A M6 x 1
WA40-14mm-14mm N/A 40 N/A 14 mm N/A 11 N·m N/A 0.59 degree/N·m N/A M6 x 1
WA40-15mm-12mm N/A 40 N/A 15 mm N/A 10 N·m N/A 0.67 degree/N·m N/A M6 x 1
WA40-15mm-13mm N/A 40 N/A 15 mm N/A 10 N·m N/A 0.67 degree/N·m N/A M6 x 1
WA40-15mm-14mm N/A 40 N/A 15 mm N/A 10 N·m N/A 0.67 degree/N·m N/A M6 x 1
WA40-15mm-15mm N/A 40 N/A 15 mm N/A 10 N·m N/A 0.67 degree/N·m N/A M6 x 1
WA40-16mm-12mm N/A 40 N/A 16 mm N/A 9.7 N·m N/A 0.78 degree/N·m N/A M6 x 1
WA40-16mm-13mm N/A 40 N/A 16 mm N/A 9.7 N·m N/A 0.78 degree/N·m N/A M6 x 1
WA40-16mm-14mm N/A 40 N/A 16 mm N/A 9.7 N·m N/A 0.78 degree/N·m N/A M6 x 1
WA40-16mm-15mm N/A 40 N/A 16 mm N/A 9.7 N·m N/A 0.78 degree/N·m N/A M6 x 1
WA40-16mm-16mm N/A 40 N/A 16 mm N/A 9.7 N·m N/A 0.78 degree/N·m N/A M6 x 1
WA50-14mm-14mm N/A 50 N/A 14 mm N/A 19 N·m N/A 0.25 degree/N·m N/A M6 x 1
WA50-16mm-14mm N/A 50 N/A 16 mm N/A 18 N·m N/A 0.31 degree/N·m N/A M6 x 1
WA50-16mm-16mm N/A 50 N/A 16 mm N/A 18 N·m N/A 0.31 degree/N·m N/A M6 x 1
WA50-18mm-14mm N/A 50 N/A 18 mm N/A 17 N·m N/A 0.39 degree/N·m N/A M6 x 1
WA50-18mm-16mm N/A 50 N/A 18 mm N/A 17 N·m N/A 0.39 degree/N·m N/A M6 x 1
WA50-18mm-18mm N/A 50 N/A 18 mm N/A 17 N·m N/A 0.39 degree/N·m N/A M6 x 1
WA50-19mm-14mm N/A 50 N/A 19 mm N/A 16 N·m N/A 0.43 degree/N·m N/A M6 x 1
WA50-19mm-16mm N/A 50 N/A 19 mm N/A 16 N·m N/A 0.43 degree/N·m N/A M6 x 1
WA50-19mm-18mm N/A 50 N/A 19 mm N/A 16 N·m N/A 0.43 degree/N·m N/A M6 x 1
WA50-19mm-19mm N/A 50 N/A 19 mm N/A 16 N·m N/A 0.43 degree/N·m N/A M6 x 1
WA50-20mm-14mm N/A 50 N/A 20 mm N/A 15 N·m N/A 0.49 degree/N·m N/A M6 x 1
WA50-20mm-16mm N/A 50 N/A 20 mm N/A 15 N·m N/A 0.49 degree/N·m N/A M6 x 1
WA50-20mm-18mm N/A 50 N/A 20 mm N/A 15 N·m N/A 0.49 degree/N·m N/A M6 x 1
WA50-20mm-19mm N/A 50 N/A 20 mm N/A 15 N·m N/A 0.49 degree/N·m N/A M6 x 1
WA50-20mm-20mm N/A 50 N/A 20 mm N/A 15 N·m N/A 0.49 degree/N·m N/A M6 x 1
Unit of Measure
1