Model: 31J57

Ball Bearing Unit
Description:

0.4062 inches mounting slot width, 0.5625 inches mounting slot length, 1.0000 inches bore diameter, 4.0000 inches center to center distance between mounting holes along width.

Properties:

Mounting Slot Width
0.4062 inches
Mounting Slot Length
0.5625 inches
Bore Diameter
1.0000 inches
Base Thickness
0.3750 inches
Center To Center Distance Between Mounting Holes Along Width
4.0000 inches
Housing Height
2.6562 inches
Housing Width
5.0000 inches
Base Length
1.2500 inches
Rolling Element Groove Quantity
1
Alignment Type
Self-aligning
Internal Fit-up Designation
Standard
Assemblylength
1.2188 inches
Seal Type
Labyrinth
Block Type
Fixed
Shaft End Type
Open
Seal Location
Both ends
Load Capability Type
Radial and thrust
Height From Bottom Of Base To Bore Centerline
1.4375 inches
Features Provided
Ground rolling element groove
Rotating Element Locking Method
Direct
Mounting Hole Type
Slotted
Lubrication Material
Grease
Material
Iron malleable housing
Material
Steel bearing surface
Style Designator
Pillow block, solid
NSN
3130-00-055-1596
Part Number
31J57
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 31J57 NSN 3130-00-055-1596

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

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.5000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
M
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
E
LVL_B:
Q

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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