Model: 31J53

Ball Bearing Unit

Properties:

Pilot Diameter
Between 6.7450 inches and 6.7500 inches
Bolt Circle Diameter
7.5000 inches
Mounting Hole Diameter
0.5312 inches
Bore Diameter
2.0000 inches
Housing Diameter
8.6250 inches
Housing Length
2.0625 inches
Lubrication Fitting Type
Pipe plug
Rolling Element Groove Quantity
1
Alignment Type
Self-aligning
Internal Fit-up Designation
Standard
Assemblylength
2.6875 inches
Seal Type
Labyrinth
Block Type
Fixed
Shaft End Type
Open
Seal Location
Both ends
Load Capability Type
Radial and thrust
Features Provided
Ground rolling element groove
Lubrication Fitting Angle From Horizontal Centerline
90.0 degrees
Rotating Element Locking Method
Direct
Mounting Hole Type
Round, unthreaded
Lubrication Material
Grease
Material
Iron malleable housing
Material
Steel bearing
Material
Steel seal
Style Designator
Flange cartridge block
NSN
3130-01-037-6276
Part Number
31J53
Description
Bearing Unit,ball
CAGE
0MKW7

An assembled unit, composed of a housing incorporating a single or multiple row ball bearing(s), designed to meet various or specific conditions of mounting.

Part 31J53 NSN 3130-01-037-6276

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
30556
FIIG:
A093A0
Concept No.:
App. Key:
A
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:
--
WCC:
742
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 8482991050
  • SITC: 74699
  • End Use: Industrial machines, other
  • NAICS: 332991
  • USDA: 1

Freight Class: Parts, except inner and outer races, for ball bearings, (including ball bearings with integral shafts)

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