Model: 3TWF21-28P

Annular Ball Bearing

Special Features:

Holding ring, steel, fed 66, aisi 430/sae 51430

Properties:

Bore Diameter
Between 1.3122 inches and 1.3128 inches
Overall Outside Diameter
Between 1.7495 inches and 1.7500 inches
Lubrication Material
Oil
Outer Ring Width
Between 0.2450 inches and 0.2500 inches
Inner Ring Width
Between 0.2760 inches and 0.2810 inches
Surface Finish
Ground
Load Direction
Radial
Bore Shape
Straight
Internal Fit-up Designation
Standard
Features Provided
Aligning ring
Lubrication Material
Oil
Lubrication Material Specification
Mil-l-6085 military specification single material response
Material
Steel comp 440c ball
Material
Steel comp 440c inner ring
Material
Steel comp 440c outer ring
Material Specification
66 federal standard single material response ball
Material Specification
66 federal standard single material response inner ring
Material Specification
66 federal standard single material response outer ring
Style Designator
Non-loading groove, non-separable
NSN
3110-00-146-5624
Part Number
3TWF21-28P
Description
Bearing,ball,annular
CAGE
78118

A cylindrical device in which the inner or outer ring turns upon a single or double row of hardened balls which roll easily between the two rings, thus minimizing friction. For items with faces specially ground for duplex mounting see bearing, ball, duplex. Excludes bearing, ball, airframe.

Part 3TWF21-28P NSN 3110-00-146-5624

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
00014
FIIG:
A044A0
Concept No.:
App. Key:
C
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:
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:
Z
ACC:
Equipment for Aircraft

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Schedule B and Export
  • Schedule B: 8482105028
  • SITC: 74610
  • End Use: Industrial machines, other
  • NAICS: 332991
  • USDA: 1

Freight Class: Angular contact ball bearings, nesoi

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