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NAN-077
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Ring Specs
(D) Free Diameter: 21.01 +0.64 / -0.00 mm.
(t) Thickness: 1.07 +0.05 / -0.05 mm.
(b) Radial Wall: 1.57 +0.08 / -0.08 mm.
Groove Specs:
(B) Application Diameter: 19.7 mm.
(G) Groove Diameter: 20.65 +0.08 / -0.08 mm.
(W) Groove Width: 1.17 +0.08 / -0.00 mm.
Groove Depth: 0.46 mm.
Other Specs
Approximate Weight per 1000:
(Gap Max) Maximum Free Gap:8.74mm.
(Gap Min) Minimum Free Gap:4.75mm.
(Pg) Theoretical Thrust Load Capacity - Groove Yield:
Notes: Yield Strength of Groove Material (Ys): 310 MPa. Calculated using a safety factor (K) of 4

Equation:
Pg = [ B * d * Ys * pi ] / K
    = [ (19.74 mm.) * (0.46 mm.) * (310 MPa) * 3.14 ] / 4		2,197N
(Pr) Theoretical Thrust Load Capacity - Ring Shear:
Notes: Ring Material: Carbon Spring Steel (SAE 1060-1095). Shear Strength of Ring Material (Ss): 952 MPa. Calculated using a safety factor (K) of 3

Equation:
Pr = [ B * t * Ss * pi ] / K
    = [ (19.74 mm.) * (1.07 mm.) * (952 MPa) * 3.14 ] / 3		20,963N
Industry Equivalent Part Number(s):
NAN-077, NAN-77