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RR-287
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Ring Specs
(D) Free Diameter: 76.07 +0.64 / -0.00 mm.
(t) Thickness: 1.24 +0.08 / -0.08 mm.
(b) Radial Wall: 4.27 +0.10 / -0.15 mm.
Groove Specs:
(B) Application Diameter: 73.0 mm.
(G) Groove Diameter: 75.41 +0.15 / -0.15 mm.
(W) Groove Width: 1.42 +0.10 / -0.00 mm.
Groove Depth: 1.19 mm.
Other Specs
Approximate Weight per 1000:
(m) Material Thickness:0.61mm.
(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
    = [ (73.03 mm.) * (1.19 mm.) * (310 MPa) * 3.14 ] / 2		42,461N
(Pr) Theoretical Thrust Load Capacity - Ring Shear:
Notes: Ring Material: Carbon Spring Steel (SAE 1070-1090). Shear Strength of Ring Material (Ss): 869 MPa. Calculated using a safety factor (K) of 3

Equation:
Pr = [ B * t * Ss * pi ] / K
    = [ (73.03 mm.) * (1.24 mm.) * (869 MPa) * 3.14 ] / 3		82,635N
Industry Equivalent Part Number(s):
RR-287, KM-287, WH-287