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Tech Specifications

SKU: WH-418-S16

Series: WH

Ring Type: Internal

Units: Imperial

Ring Style: Spirolox (Spiral)

Housing Diameter: 4.188 in

Groove Yield: 18,350 lb

Ring Shear: 33,710 lb

Groove Diameter: 4.311 in

Groove Width: 0.068 in

Material: 316 Stainless Steel

Rating: Medium Duty

Number of Turns: 2

Ring Radial Wall: 0.218 in

Ring Thickness: 0.061 in

Free Outside Ring Diameter: 4.347 in


The WH Series Spirolox Retaining Ring is Smalley's most popular retaining ring series. Smalley engineers have developed the greatest number of standard retaining ring sizes in this series, allowing customers to easily select and order parts for their applications. WH & WS spiral rings easily handle thrust loads imposed by light or medium series bearings.