american ring true manufacturing solutions

ND-218 Retaining Ring Spec Sheet

Part Number: ND-218

ND Series - Housing Rings for Needle Bearings

View as a PDF


Display Units: inches  |  metric
Ring Specs

(D) Free Diameter: 58.47 +1.57 / -0.00 mm.
(t) Thickness: 1.07 +0.05 / -0.05 mm.
(b) Radial Wall: 3.96 +0.13 / -0.13 mm.
Groove Specs:

(B) Application Diameter: 55.5 mm.
(G) Groove Diameter: 57.84 +0.15 / -0.15 mm.
(W) Groove Width: 1.17 +0.08 / -0.00 mm.
Groove Depth: 1.14 mm.
Other Specs

Approximate Weight per 1000:
(GAPmax) Maximum Gap:19.05mm.
(GAPmin) Minimum Gap:11.10mm.
(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
    = [ (55.55 mm.) * (1.14 mm.)* (310 MPa) * 3.14 ] / 4
15,461N
(Pr) Theoretical Thrust Load Capacity - Ring Shear:
Notes: Ring Material1: 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
    = [ (55.55 mm.) * (1.07 mm.) * (952 MPa) * 3.14 ] / 3

1Calculation assumes Carbon Steel for ring material, but Carbon Steel not necessarily available for all parts or sizes.
59,012N
Industry Equivalent Part Number(s):
ND-218