Model: 618-4275-001

Spur Antibacklash Gear

Properties:

Attachment Method
Mounting hole
Pitch Diameter
0.9239 inches
Teeth Quantity
91
Bore Style
Plain both ends
Mounting Hole Type And Quantity
1 countersunk axially through body, first end
Outside Diameter
0.924 inches
Tooth Form
Standard
Pressure Angle
20.0000 degrees
Body Recess Depth
0.011 inches first end
Face Width
0.032 inches
Bore Diameter
0.188 inches both ends
Precision Classification
Quality number 10
Mounting Hole Diameter
0.044 inches axially through body, first end
Material
Steel comp 303
Material Specification
Qq-s-764, cond a federal specification single material response
Surface Treatment
Passivate
Style Designator
Hubless, recessed body
NSN
3020-01-038-5588
Part Number
618-4275-001
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 618-4275-001 NSN 3020-01-038-5588

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

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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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