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Tech Specifications

SKU: ES-78-S02

Series: ES

Ring Type: External

Units: Metric

Ring Style: Spirolox (Spiral)

Shaft Diameter: 78.00 mm

Groove Yield: 46,730 N

Ring Shear: 109,910 N

Groove Diameter: 75.55 mm

Groove Width: 1.73 mm

Material: 302 Stainless Steel

Rating: Light Medium Duty

Number of Turns: 2

Ring Radial Wall: 4.27 mm

Ring Thickness: 1.55 mm

Free Inside Diameter: 74.84 mm


The ES Series metric retaining rings are Smalley's standard Spiral Retaining Rings produced to Metric Aerospace specifications. They fit grooves specifically designed for 2-turn spiral retaining rings and accommodate light to medium duty applications.