Model: B544ZZ7

Airframe Ball Bearing

Special Features:

40 pct to 50 pct full of specified lubricant, 0.0040 in. Max internal clearance, 0.0070 in. Max end play

Properties:

Bore Diameter
Between 1.8120 inches and 1.8125 inches
Overall Outside Diameter
Between 2.2495 inches and 2.2500 inches
Lubrication Material
Grease
Outer Ring Width
Between 0.2450 inches and 0.2500 inches
Inner Ring Width
Between 0.2785 inches and 0.2810 inches
Seal Quantity
2
Bearing Seal Type
Contact
Load Direction
Radial
Lubrication Material Specification
Mil-g-23827 military specification single material response
Material
Steel ball
Material
Rubber synthetic seal
Material
Steel inner ring
Material
Steel outer ring
Surface Treatment
Cadmium all external/exposed metal surfaces
Style Designator
Single row, torque tube type, w/or w/o closure
NSN
3110-00-985-3652
Part Number
B544ZZ7
Description
Bearing,ball,airframe
CAGE
38443

A cylindrical item in which the inner or outer ring turns upon row(s) of hardened ball, 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, ball, annular.

Part B544ZZ7 NSN 3110-00-985-3652

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
00041
FIIG:
A044A0
Concept No.:
App. Key:
B
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

Packaging & Shipping

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

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:
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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