Model: 3TAR12-19UDB20-30

Duplex Ball Bearing

Properties:

Overall Width
0.5000 inches
Bore Diameter
Between 0.7498 inches and 0.7500 inches
Overall Outside Diameter
Between 1.1871 inches and 1.1875 inches
Lubrication Material
Grease
Surface Finish
Ground
Retainer Fabrication Method
Machined
Load Direction
Angular
Bearing Preload Designation
Medium
Internal Clearance
0.0002 inches radial and 0.0008 inches radial
Lubrication Material Specification
Mil-g-81322 military specification single material response
Material
Plastic phenolic retainer
Material
Steel comp 440c ball
Material
Steel comp 440c inner ring
Material
Steel comp 440c outer ring
Material Specification
Qq-s-763, class 440c federal specification single material response inner ring
Material Specification
Qq-s-763, class 440c federal specification single material response outer ring
Material Specification
Qq-s-763, class 440c federal specification single material response ball
Style Designator
92b counterbored outer rings, non-separable, back to back mounting
Style Designator
Counterbored outer rings, non-separable, back to back mounting
NSN
3110-00-495-0081
Part Number
3TAR12-19UDB20-30
Description
Bearing,ball,duplex
CAGE
78118

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 3TAR12-19UDB20-30 NSN 3110-00-495-0081

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:
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:
Construction Materials

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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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