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DIN471-078
Display Units: inches  |  metric
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Ring Specs
(D) Free Diameter: 73.50 +0.46 / -1.10 mm.
(t) Thickness: 2.50 +0.00 / -0.06 mm.
(b) Radial Wall:
Groove Specs:
(B) Application Diameter: 78.0 mm.
(G) Groove Diameter: 75.00 +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: 28.042 kg.
(C) Clearance Diameter When Sprung onto Shaft:96.19mm.
(C1) Clearance Diameter When Sprung into Groove:92.20mm.
(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) * (78.00 mm.) * (1.50 mm.) * (310 MPa) * 3.14 ] / 2		68,326N
(Pr) Theoretical Thrust Load Capacity - Ring Shear:
Notes: Ring Material: 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) * (78.00 mm.) * (2.50 mm.) * (1,034 MPa) * 3.14 ] / 4		189,151N
Industry Equivalent Part Number(s):
DIN471-078, A78, D1400-780, DSH-78, DIN471-78