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DIN471-078
Display Units: inches |  metric
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Ring Specs
(D) Free Diameter: 2.894 +0.018 / -0.043 in.
(t) Thickness: 0.098 +0.000 / -0.002 in.
(b) Radial Wall:
Groove Specs:
(B) Application Diameter: 3.071 in.
(G) Groove Diameter: 2.953 +0.000 / -0.012 in.
(W) Groove Width: 0.104 +0.005 / -0.000 in.
Groove Depth: 0.059 in.
Other Specs
Approximate Weight per 1000: 61.820 lbs.
(C) Clearance Diameter When Sprung onto Shaft:3.787in.
(C1) Clearance Diameter When Sprung into Groove:3.630in.
(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 Material: 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		42,525lbs.
Industry Equivalent Part Number(s):
DIN471-078, A78, D1400-780, DSH-78, DIN471-78