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Tech Specifications

SKU: WSM-137

Series: WSM

Ring Type: External

Units: Imperial

Ring Style: Spirolox (Spiral)

Shaft Diameter: 1.375 in

Groove Yield: 4,080 lb

Ring Shear: 9,070 lb

Groove Diameter: 1.291 in

Groove Width: 0.056 in

Material: Carbon Steel

Rating: Heavy Duty

Number of Turns: 2

Ring Radial Wall: 0.118 in

Ring Thickness: 0.050 in

Alternative Ring Groove: Truarc (5100 & 5108), Eaton EN, Industrial RR (3100 & 4100), Anderton N1400

Free Inside Diameter: 1.277 in


The WSM Series Spirolox Retaining Ring is designed for the toughest retaining ring jobs. WHM & WSM series retaining rings use standard industry groove dimensions and are interchangeable with many stamped retaining rings. This series should be specified for thrust loads that demand deep groove, heavy section capacity.