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RR-218
Display Units: inches  |  metric
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Ring Specs
(D) Free Diameter: 58.01 +0.64 / -0.00 mm.
(t) Thickness: 1.24 +0.08 / -0.08 mm.
(b) Radial Wall: 3.51 +0.08 / -0.13 mm.
Groove Specs:
(B) Application Diameter: 55.6 mm.
(G) Groove Diameter: 57.45 +0.15 / -0.15 mm.
(W) Groove Width: 1.42 +0.10 / -0.00 mm.
Groove Depth: 0.94 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
    = [ (55.58 mm.) * (0.94 mm.) * (310 MPa) * 3.14 ] / 2		25,438N
(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
    = [ (55.58 mm.) * (1.24 mm.) * (869 MPa) * 3.14 ] / 3		62,890N
Industry Equivalent Part Number(s):
RR-218, KM-218, WH-218