Model: M17931-A040

Duplex Ball Bearing

Properties:

Overall Width
Between 1.7667 inches and 1.7717 inches
Bore Diameter
Between 3.7399 inches and 3.7402 inches
Overall Outside Diameter
Between 7.8737 inches and 7.8740 inches
Lubrication Material
Grease
Surface Finish
Ground
Retainer Fabrication Method
Pressed
Load Direction
Angular
Internal Fit-up Designation
Standard
Lubrication Material Specification
Mil-g-18709 military specification single material response
Material
Steel comp e52100
Material Specification
Fed standard 66 federal standard single material response
Style Designator
90a universal ground faces, counterbored outer ring, non-separable
Nondefinitive Specification/std Data
134 type and 2 class
NSN
3110-00-987-3712
Part Number
M17931-A040
Description
Bearing,ball,duplex
CAGE
81349

Two single row annular ball bearings selected dimensionally to be a matched pair or set. The ring faces have been specially ground to specified offsets that will produce predetermined preload when mounted. May include a single row angular contact bearing with faces specially ground for duplex mounting.

Part M17931-A040 NSN 3110-00-987-3712

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
30213
FIIG:
A044A0
Concept No.:
App. Key:
E
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:
A
ESD:
ESD:
MMAC:
CRITL:
N

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
9.0 X 9.0 X 3.0
Paclk Weight:
16.5000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
M
SPI No.:
SPI Rev.:
SPC Mkg:
99
LVL_A:
E
LVL_B:
Q

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: 8482105068
  • SITC: 74610
  • End Use: Industrial machines, other
  • NAICS: 332991
  • USDA: 1

Freight Class: Ball bearings, nesoi

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