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RR-121
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Ring Specs
(D) Free Diameter: 32.46 +0.38 / -0.00 mm.
(t) Thickness: 1.09 +0.05 / -0.05 mm.
(b) Radial Wall: 2.16 +0.08 / -0.13 mm.
Groove Specs:
(B) Application Diameter: 30.9 mm.
(G) Groove Diameter: 32.16 +0.10 / -0.10 mm.
(W) Groove Width: 1.22 +0.10 / -0.00 mm.
Groove Depth: 0.61 mm.
Other Specs
Approximate Weight per 1000:
(m) Material Thickness:0.53mm.
(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
    = [ (30.94 mm.) * (0.61 mm.) * (310 MPa) * 3.14 ] / 2		9,185N
(Pr) Theoretical Thrust Load Capacity - Ring Shear:
Notes: Ring Material: Carbon Spring Steel (SAE 1070-1090). Shear Strength of Ring Material (Ss): 952 MPa. Calculated using a safety factor (K) of 3

Equation:
Pr = [ B * t * Ss * pi ] / K
    = [ (30.94 mm.) * (1.09 mm.) * (952 MPa) * 3.14 ] / 3		33,645N
Industry Equivalent Part Number(s):
RR-121, KM-121, WH-121