Model: 1221E31

Inner Bearing Ring

Properties:

Overall Width
0.9920 inches
Bore Diameter
0.9370 inches
Overall Outside Diameter
1.2480 inches
Surface Finish
Ground
Bore Shape
Straight
Standard Tolerance Designation
Afbma standard tolerances for journal bearings
Material
Steel
Style Designator
Solid inner race, journal and needle
NSN
3110-00-183-9756
Part Number
1221E31
Description
Ring,bearing,inner
CAGE
78500

The inner component of a ball or roller bearing which provides a contact surface for the rolling elements of an antifriction bearing.

Part 1221E31 NSN 3110-00-183-9756

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
00028
FIIG:
A044A0
Concept No.:
App. Key:
V
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

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
114820
UFC:
58860
LTL:
77.5
LCL:
77.5
WCC:
742
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 8482991010
  • SITC: 74699
  • End Use: Industrial machines, other
  • NAICS: 332991
  • USDA: 1

Freight Class: Inner and outer races for ball bearings (including ball bearings with integral shafts)

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