Model: 8171711

Spur Antibacklash Gear

Special Features:

Two shoulder screws included

Properties:

Pitch Diameter
7.3125 inches
Teeth Quantity
35
Bore Style
Plain both ends
Outside Diameter
7.353 inches
Tooth Form
Standard
Pressure Angle
14.5000 degrees
Distance Between Body Face And Protruding Hub End
3.344 inches first end
Face Width
0.376 inches
Bore Diameter
0.500 inches both ends
Hub Style Designator
Plain first end
Hub Diameter
0.500 inches first end
Material
Aluminum alloy first gear
Material
Aluminum alloy second gear
Material
Stainless steel hub
Material Specification
Qq-a-355 federal specification single material response first gear
Material Specification
Qq-a-355 federal specification single material response second gear
Material Specification
Qq-s-763 federal specification single material response hub
Style Designator
Protruding hub
Furnished Items And Quantity
1 spring pin and 2 spring
NSN
3020-00-563-3826
Part Number
8171711
Description
Gear,antibacklash,spur
CAGE
18876

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 8171711 NSN 3020-00-563-3826

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

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
121870
UFC:
64910
LTL:
77.5
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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