american ring true manufacturing solutions

M2742640180B Retaining Ring Spec Sheet

Part Number: M2742640180B

M27426/4 - Internal Medium Duty Retaining Ring

View as a PDF


Display Units: inches |  metric
Ring Specs

(D) Free Diameter: 7.366 +0.055 / -0.000 in.
(t) Thickness: 0.156 +0.005 / -0.005 in.
(b) Radial Wall: 0.380 +0.004 / -0.008 in.
Groove Specs:

(B) Application Diameter: 7.000 in.
(G) Groove Diameter: 7.315 +0.008 / -0.008 in.
(W) Groove Width: 0.174 +0.008 / -0.000 in.
Groove Depth: 0.158 in.
Other Specs

Approximate Weight per 1000:
(m) Material Thickness:0.077in.
(N) Ring Number of Turns:2.000
(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 = [ B * d * Ys * pi ] / K
    = [ (7.000 in.) * (0.158 in.)* (45,000 psi) * 3.14 ] / 2
78,138lbs.
(Pr) Theoretical Thrust Load Capacity - Ring Shear:
Notes: Ring Material1: Carbon Spring Steel (SAE 1070-1090). Shear Strength of Ring Material (Ss): 120,000 psi. Calculated using a safety factor (K) of 3

Equation:
Pr = [ B * t * Ss * pi ] / K
    = [ (7.000 in.) * (0.156 in.) * (120,000 psi) * 3.14 ] / 3

1Calculation assumes Carbon Steel for ring material, but Carbon Steel not necessarily available for all parts or sizes.
137,155lbs.