Airframe ball bearing KP47B

Product Features

W80 pct. Full of mil-g-81322, heat treat rings and balls to rockwell c 60 to 66 and stabilized for operation at 250 deg. F, radial and lateral eccentricity, inner ring 0.0010 in. Outer ring 0.0016 in., 0.0003-0.0010 in.Radial clearance

Manufacturer Specification

Bore Diameter
2.9380 inches
Overall Outside Diameter
3.8750 inches
Lubrication Material
Outer Ring Width
0.4690 inches
Inner Ring Width
0.5310 inches
Seal Quantity
Bearing Seal Type
Load Direction
Standard Tolerance Designation
Afbma standard tolerance for airframe ball bearings
Lubrication Material Specification
Mil-g-81322 military specification single material response
Material Specification
66 federal standard all material responses ball
Material Specification
66 federal standard single material response inner ring
Material Specification
66 federal standard single material response outer ring
Material Specification
Ams 3652 assn standard single material response seal or ams 3666 assn standard single material response seal
Surface Treatment Specification
Qq-p-416, type 1, cl 2 federal specification single treatment response exposed surfaces as mounted
Style Designator
Single row inner ring extended both sides

Product Details

Steel corrosion resisting retainer material, cadmium exposed surfaces as mounted surface treatment.

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Last Availability

This product was available in the following quantities and conditions when checked on 02/09/2021.

  • NS Stock: 8
  • NE Stock: 429
  • AR Stock: 1
  • SV Stock: 1
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last updated on 12/10/2023