Model: 542-1439-002

Spur Antibacklash Gear

Properties:

Pitch Diameter
2.7500 inches
Teeth Quantity
132
Bore Style
Plain both ends
Outside Diameter
2.7917 inches
Nominallength
0.500 inches
Tooth Form
Standard
Pressure Angle
20.0000 degrees
Distance Between Body Face And Protruding Hub End
0.421 inches first end
Face Width
0.062 inches
Bore Diameter
0.375 inches both ends
Counterbore Depth
0.031 inches second end
Counterbore Diameter
0.468 inches second end
Hub Style Designator
Plain both ends
Hub Diameter
0.562 inches second end
Material
Aluminum body and stainless steel body
Material
Stainless steel hub
Material
Aluminum and stainless steel body
Surface Treatment
Anodize body and passivate body
Surface Treatment
Passivate hub
Style Designator
Peripheral face, hubless
NSN
3020-00-651-5974
Part Number
542-1439-002
Description
Gear,antibacklash,spur
CAGE
13499

An item having one fixed gear and one free gear, both having the same complement of spur gear teeth, mounted on a common hub. The free gear is attached to the fixed gear by springs and operates as one gear. Upon installation with the mating gear, the teeth of the free moving gear are preset to mesh with teeth other than those of the fixed gear. This spring tension between the fixed gear and the free gear eliminates any free motion between the driver and the driven gear. The gear is used where identical and accurate transmitted motion between gears is required.

Part 542-1439-002 NSN 3020-00-651-5974

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
26668
FIIG:
A27300
Concept No.:
App. Key:
AC
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:
--
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
197339
UFC:
96710
LTL:
65.0
LCL:
--
WCC:
593
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 8483409000
  • SITC: 74840
  • End Use: Industrial machines, other
  • NAICS: 333612
  • USDA: 1

Freight Class: Gears and gearing, other than toothed wheels, chain sprockets and other transmission elements entered separately

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