Model: 21-427-3
Duplex Ball BearingSpecial Features:
Hwith inner and outer ring spacer, radial runout assembled 0.0020 in. T.I.R., axial runout 0.0010 in. R.I.R., starting torque under radial load of 15000 lb equals 304 in. Lb, stating torque under thrust load of 8870 lb equals 240 in. Lb, all dimensions apply at 68 degrees f, dimension 2.6250 in. Make the width of inner race spacer such that each bearing of the match pair will be preloaded axiaaly 0.0005 in. When assembled in machine, over 25 degrees angularity
Properties:
Two single row annular ball bearings selected dimensionally to be a matched pair or set. The ring faces have been specially ground to specified offsets that will produce predetermined preload when mounted. May include a single row angular contact bearing with faces specially ground for duplex mounting.
Part 21-427-3 NSN 3110-00-723-9429
Material Classification
Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicatorsPackaging & Shipping
Freight Classification
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Schedule B and Export
- Schedule B: 8482105068
- SITC: 74610
- End Use: Industrial machines, other
- NAICS: 332991
- USDA: 1
Freight Class: Ball bearings, nesoi
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