american ring true manufacturing solutions

RTW-078 Retaining Ring Spec Sheet

Part Number: RTW-078

RTW - Internal JIS B 2804 Retaining Rings

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Display Units: inches |  metric
Ring Specs

(D) Free Diameter: 3.248 +0.022 / -0.022 in.
(t) Thickness: 0.098 +0.003 / -0.003 in.
(b) Radial Wall:
Groove Specs:

(B) Application Diameter: 3.071 in.
(G) Groove Diameter: 3.189 +0.014 / -0.000 in.
(W) Groove Width: 0.106 +0.006 / -0.000 in.
Groove Depth: 0.059 in.
Other Specs

Approximate Weight per 1000:
(Pg) Theoretical Thrust Load Capacity - Groove Yield:
Notes: Yield Strength of Groove Material (Ys): 45,000 psi. Calculated using a safety factor (K) of 2

Equation:
Pg = [ Cf * B * d * Ys * pi ] / K
    = [ (1.2) * (3.071 in.) * (0.059 in.) * (45,000 psi) * 3.14 ] / 2
15,361lbs.
(Pr) Theoretical Thrust Load Capacity - Ring Shear:
Notes: Ring Material1: Carbon Spring Steel (SAE 1060-1090). Shear Strength of Ring Material (Ss): 150,000 psi. Calculated using a safety factor (K) of 4

Equation:
Pr = [ Cf * B * t * Ss * pi ] / K
    = [ (1.2) * (3.071 in.) * (0.098 in.) * (150,000 psi) * 3.14 ] / 4

1Calculation assumes Carbon Steel for ring material, but Carbon Steel not necessarily available for all parts or sizes.
42,525lbs.