Model: 39381-29

Airframe Roller Bearing

Special Features:

6000 to 8000 lbs radial preload; 8 lube holes; one lube groove in od of outer ring; operating temp range minus 65 degrees f to 500 degrees f; 1-1/2 degrees self alignment in either direstion

Properties:

Bore Diameter
Between 4.7490 inches and 4.7500 inches
Overall Outside Diameter
Between 6.3430 inches and 6.3440 inches
Lubrication Material
Grease
Outer Ring Width
Between 1.2450 inches and 1.2500 inches
Inner Ring Width
Between 1.3390 inches and 2.3440 inches
Retainer Fabrication Method
Machined
Seal Quantity
2
Shield Quantity
2
Bearing Seal Type
Contact
Lubrication Material Specification
Mil-g-81322 military specification single material response
Material
Copper alloy retainer
Material
Plastic phenolic seal and glass seal
Material
Steel comp e52100 inner ring
Material
Steel comp e52100 outer ring
Material
Steel comp e52100 roller
Material
Stainless steel shield
Material Specification
Mil-s-7420 military specification single material response outer ring
Material Specification
Mil-s-7420 military specification single material response inner ring
Material Specification
Mil-s-7420 military specification single material response roller
Material Specification
Qq-c-390 federal specification single material response retainer
Surface Treatment
Cadmium all external/exposed metal surfaces
Surface Treatment Specification
Qq-p-416, type 1, cl 2 federal specification single treatment response all external/exposed metal surfaces
Style Designator
Concave rollers, double closure, self aligning
NSN
3110-00-522-8952
Part Number
39381-29
Description
Bearing,roller,airframe
CAGE
77896

A cylindrical item in which the inner or outer ring turns upon row(s) of hardened roller, bearing which roll on a raceway, thus minimizing friction. These items are characterized by their noncorrosive qualities, lightness of weight, inch dimensions rather than metric, inner rings generally projecting beyond the faces of the outer ring, or a very narrow width inner ring having an outside diameter slightly larger than the bore diameter. Designed primarily for use in aircraft assemblies, such as control systems and surfaces of aircraft. Excludes bearing, roller, cylindrical.

Part 39381-29 NSN 3110-00-522-8952

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
00046
FIIG:
A044A0
Concept No.:
App. Key:
U
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:
4.5000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
M
SPI No.:
SPI Rev.:
SPC Mkg:
ZZ
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: 8482800080
  • SITC: 74680
  • End Use: Industrial machines, other
  • NAICS: 332991
  • USDA: 1

Freight Class: Other ball or roller bearings, including combined ball/roller bearings, nesoi

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