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1258 Retaining Ring Spec Sheet

Part Number: 1258

BRGS - Rings to Retain Bearings on Shafts

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Display Units: inches |  metric
Ring Specs

(D) Free Diameter: 2.359 +0.000 / -0.062 in.
(t) Thickness: 0.125 +0.002 / -0.002 in.
(b) Radial Wall: 0.250 +0.005 / -0.005 in.
Groove Specs:

(B) Application Diameter: 2.559 in.
(G) Groove Diameter: 2.389 +0.006 / -0.006 in.
(W) Groove Width: 0.139 +0.006 / -0.000 in.
Groove Depth: 0.085 in.
Other Specs

Approximate Weight per 1000:
(Pg) Theoretical Thrust Load Capacity - Groove Yield:
Notes: Yield Strength of Groove Material (Ys): 45,000 psi. Calculated using a safety factor (K) of 4

Equation:
Pg = [ B * d * Ys * pi ] / K
    = [ (2.559 in.) * (0.085 in.)* (45,000 psi) * 3.14 ] / 4
7,683lbs.
(Pr) Theoretical Thrust Load Capacity - Ring Shear:
Notes: Ring Material1: Carbon Spring Steel (SAE 1060-1095). Shear Strength of Ring Material (Ss): 153,000 psi. Calculated using a safety factor (K) of 3

Equation:
Pr = [ B * t * Ss * pi ] / K
    = [ (2.559 in.) * (0.125 in.) * (153,000 psi) * 3.14 ] / 3

1Calculation assumes Carbon Steel for ring material, but Carbon Steel not necessarily available for all parts or sizes.
51,224lbs.
Industry Equivalent Part Number(s):
1258