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ND-725 Retaining Ring Spec Sheet

Part Number: ND-725

ND Series - Housing Rings for Needle Bearings

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Display Units: inches  |  metric
Ring Specs

(D) Free Diameter: 190.50 +4.75 / -0.00 mm.
(t) Thickness: 2.36 +0.05 / -0.05 mm.
(b) Radial Wall: 6.35 +0.13 / -0.13 mm.
Groove Specs:

(B) Application Diameter: 184.2 mm.
(G) Groove Diameter: 188.21 +0.20 / -0.20 mm.
(W) Groove Width: 2.62 +0.13 / -0.00 mm.
Groove Depth: 2.03 mm.
Other Specs

Approximate Weight per 1000:
(GAPmax) Maximum Gap:44.45mm.
(GAPmin) Minimum Gap:25.40mm.
(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
    = [ (184.15 mm.) * (2.03 mm.)* (310 MPa) * 3.14 ] / 4
91,131N
(Pr) Theoretical Thrust Load Capacity - Ring Shear:
Notes: Ring Material1: Carbon Spring Steel (SAE 1060-1095). Shear Strength of Ring Material (Ss): 1,055 MPa. Calculated using a safety factor (K) of 3

Equation:
Pr = [ B * t * Ss * pi ] / K
    = [ (184.15 mm.) * (2.36 mm.) * (1,055 MPa) * 3.14 ] / 3

1Calculation assumes Carbon Steel for ring material, but Carbon Steel not necessarily available for all parts or sizes.
480,268N
Industry Equivalent Part Number(s):
ND-725