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ZST-072 Retaining Ring Spec Sheet

Part Number: ZST-072

ZST Series - Med./Heav. Duty Spiral Retaining Ring

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Display Units: inches  |  metric
Ring Specs

(D) Free Diameter: 68.20 +0.00 / -0.76 mm.
(t) Thickness: 2.36 +0.08 / -0.08 mm.
(b) Radial Wall: 4.78 +0.10 / -0.15 mm.
Groove Specs:

(B) Application Diameter: 72.0 mm.
(G) Groove Diameter: 68.71 +0.15 / -0.15 mm.
(W) Groove Width: 2.62 +0.13 / -0.00 mm.
Groove Depth: 1.65 mm.
Other Specs

Approximate Weight per 1000:
(m) Material Thickness:1.14mm.
(N) Ring Number of Turns:2.000
(Pg) Theoretical Thrust Load Capacity - Groove Yield:
Notes: Yield Strength of Groove Material (Ys): 310 MPa. Calculated using a safety factor (K) of 2

Equation:
Pg = [ B * d * Ys * pi ] / K
    = [ (72.01 mm.) * (1.65 mm.)* (310 MPa) * 3.14 ] / 2
57,909N
(Pr) Theoretical Thrust Load Capacity - Ring Shear:
Notes: Ring Material1: Carbon Spring Steel (SAE 1070-1090). Shear Strength of Ring Material (Ss): 827 MPa. Calculated using a safety factor (K) of 3

Equation:
Pr = [ B * t * Ss * pi ] / K
    = [ (72.01 mm.) * (2.36 mm.) * (827 MPa) * 3.14 ] / 3

1Calculation assumes Carbon Steel for ring material, but Carbon Steel not necessarily available for all parts or sizes.
147,296N
Industry Equivalent Part Number(s):
ZST-072