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DIN471-077 Retaining Ring Spec Sheet

Part Number: DIN471-077

DIN471 Series - Metric Ext. Ring With Lugs

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Display Units: inches  |  metric
Ring Specs

(D) Free Diameter: 72.50 +0.46 / -1.10 mm.
(t) Thickness: 2.50 +0.00 / -0.06 mm.
(b) Radial Wall:
Groove Specs:

(B) Application Diameter: 77.0 mm.
(G) Groove Diameter: 74.00 +0.00 / -0.30 mm.
(W) Groove Width: 2.65 +0.14 / -0.00 mm.
Groove Depth: 1.50 mm.
Other Specs

Approximate Weight per 1000: 24.210 kg.
(C) Clearance Diameter When Sprung onto Shaft:95.00mm.
(C1) Clearance Diameter When Sprung into Groove:91.01mm.
(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 = [ Cf * B * d * Ys * pi ] / K
    = [ (1.2) * (77.00 mm.) * (1.50 mm.) * (310 MPa) * 3.14 ] / 2
67,458N
(Pr) Theoretical Thrust Load Capacity - Ring Shear:
Notes: Ring Material1: Carbon Spring Steel (SAE 1060-1090). Shear Strength of Ring Material (Ss): 1,034 MPa. Calculated using a safety factor (K) of 4

Equation:
Pr = [ Cf * B * t * Ss * pi ] / K
    = [ (1.2) * (77.00 mm.) * (2.50 mm.) * (1,034 MPa) * 3.14 ] / 4

1Calculation assumes Carbon Steel for ring material, but Carbon Steel not necessarily available for all parts or sizes.
186,749N
Industry Equivalent Part Number(s):
DIN471-077