Model: A3990/61757

Annular Ball Bearing

Special Features:

Electro-deposition plated corrosion resistance

Properties:

Overall Width
0.2500 inches
Bore Diameter
4.4998 inches
Overall Outside Diameter
5.0003 inches
Surface Finish
Ground
Retainer Fabrication Method
Pressed
Load Direction
Radial
Bore Shape
Straight
Internal Fit-up Designation
Standard
Standard Tolerance Designation
Abec no.1
Functional Description
Combination of radial, trust and movement loading
Material
Copper alloy 260 retainer
Material
Steel comp e52100 ball
Material
Steel comp e52100 inner ring
Material
Steel comp e52100 outer ring
Material Specification
Astm a295 assn standard single material response ball or 66 federal standard single material response ball
Material Specification
Astm a295 assn standard single material response outer ring or 66 federal standard single material response outer ring
Material Specification
Astm a295 assn standard single material response inner ring or 66 federal standard single material response inner ring
Material Specification
Sae ca260 assn standard single material response retainer or qq-b-613 federal specification single material response retainer
Style Designator
40a 4 point ball contact, solid inner and outer rings, non-separable
NSN
3110-01-235-2874
Part Number
A3990/61757
Description
Bearing,ball,annular
CAGE
K0662

A cylindrical device in which the inner or outer ring turns upon a single or double row of hardened balls which roll easily between the two rings, thus minimizing friction. For items with faces specially ground for duplex mounting see bearing, ball, duplex. Excludes bearing, ball, airframe.

Part A3990/61757 NSN 3110-01-235-2874

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
00014
FIIG:
A044A0
Concept No.:
App. Key:
C
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
U
ESD:
ESD:
MMAC:
CRITL:
X

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Schedule B and Export
  • Schedule B: 8482105028
  • SITC: 74610
  • End Use: Industrial machines, other
  • NAICS: 332991
  • USDA: 1

Freight Class: Angular contact ball bearings, nesoi

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