Model: 30138-92

Spur Antibacklash Gear

Properties:

Attachment Method
Clamp
Pitch Diameter
0.7660 inches
Teeth Quantity
92
Bore Style
Plain both ends
Outside Diameter
0.783 inches
Pressure Angle
20.0000 degrees
Distance Between Body Face And Protruding Hub End
0.154 inches first end
Face Width
0.055 inches
Bore Diameter
0.120 inches both ends
Hub Style Designator
Split first end
Hub Diameter
0.156 inches first end
Material
Aluminum alloy 2024
Material Specification
Qq-a-225/6, t4 federal specification single material response
Style Designator
Protruding hub
NSN
3020-00-884-6225
Part Number
30138-92
Description
Gear,antibacklash,spur
CAGE
07421

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 30138-92 NSN 3020-00-884-6225

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

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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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