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DIN471-027 Retaining Ring Spec Sheet

Part Number: DIN471-027

DIN471 Series - Metric Ext. Ring With Lugs

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Display Units: inches  |  metric
Ring Specs

(D) Free Diameter: 24.90 +0.21 / -0.42 mm.
(t) Thickness: 1.20 +0.00 / -0.06 mm.
(b) Radial Wall:
Groove Specs:

(B) Application Diameter: 27.0 mm.
(G) Groove Diameter: 25.60 +0.00 / -0.21 mm.
(W) Groove Width: 1.30 +0.14 / -0.00 mm.
Groove Depth: 0.70 mm.
Other Specs

Approximate Weight per 1000: 1.886 kg.
(C) Clearance Diameter When Sprung onto Shaft:37.21mm.
(C1) Clearance Diameter When Sprung into Groove:34.80mm.
(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) * (27.00 mm.) * (0.70 mm.) * (310 MPa) * 3.14 ] / 2
11,222N
(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) * (27.00 mm.) * (1.20 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.
31,398N
Industry Equivalent Part Number(s):
DIN471-027