Model: 1237437-2

Spur Antibacklash Gear

Special Features:

Additional gear is third step of first end pitch diameter 0.4005 inch , 0.4015 inch , 51 teeth, 20 degree pressure angle

Properties:

Pitch Diameter
Between 0.6289 inches and 0.6299 inches
Teeth Quantity
80
Outside Diameter
0.644 inches
Nominallength
0.536 inches
Tooth Form
Standard
Pressure Angle
20.0000 degrees
Distance Between Body Face And Protruding Hub End
0.097 inches second end
Hub Style Designator
3 steps both ends
End Length
0.051 inches first end
End Length
0.097 inches second end
Precision Classification
Quality number 10 or quality number 11
End Diameter
0.046 inches first end
End Diameter
0.046 inches second end
First Step Length
0.046 inches first end
First Step Diameter
0.095 inches first end
Second Step Length
0.154 inches first end
Second Step Diameter
0.416 inches first end
Material
Steel comp 416
Material Specification
Qq-s-763, class 6, type c federal specification single material response
Style Designator
Peripheral face, hubless
NSN
3020-00-341-9845
Part Number
1237437-2
Description
Gear,antibacklash,spur
CAGE
55972

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 1237437-2 NSN 3020-00-341-9845

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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