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RS-550
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Ring Specs
(D) Free Diameter: 134.82 +0.00 / -1.27 mm.
(t) Thickness: 1.83 +0.10 / -0.10 mm.
(b) Radial Wall: 6.35 +0.10 / -0.15 mm.
Groove Specs:
(B) Application Diameter: 139.7 mm.
(G) Groove Diameter: 135.97 +0.18 / -0.18 mm.
(W) Groove Width: 2.01 +0.13 / -0.00 mm.
Groove Depth: 1.87 mm.
Other Specs
Approximate Weight per 1000:
(m) Material Thickness:0.89mm.
(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
    = [ (139.70 mm.) * (1.87 mm.) * (310 MPa) * 3.14 ] / 2		126,168N
(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
    = [ (139.70 mm.) * (1.83 mm.) * (869 MPa) * 3.14 ] / 3		232,292N
Industry Equivalent Part Number(s):
RS-550, CM-550, WS-550