Model: 78589H

Helical Gear

Properties:

Body Style
Webbed, solid
Pitch Diameter
7.9687 inches
Teeth Quantity
49
Bore Style
10a w/ keyway both ends
Bore Style
W/ keyway both ends
Outside Diameter
8.3125 inches
Nominallength
1.767 inches
Teeth Type
Single helix
Tooth Form
Standard
Tooth Direction
Right
Pressure Angle
20.0000 degrees
Helix Angle
23.4167 degrees
Distance Between Body Face And Protruding Hub End
0.329 inches first end
Distance Between Body Face And Recessed Hub End
0.156 inches second end
Face Width
1.433 inches
Bore Diameter
2.249 inches both ends
Keyway Width
0.378 inches both ends
Distance From Bore Center To Keyway Bottom
1.312 inches both ends
Hub Style Designator
Plain both ends
Hub Diameter
2.750 inches first end
Hub Diameter
3.000 inches second end
Material
Steel comp 8620
Material Specification
Qq-s-624, comp 8620 federal specification single material response
Style Designator
One protruding hub, one recessed hub
NSN
3020-00-700-1513
Part Number
78589H
Description
Gear,helical
CAGE
89346

A gear, cylindrical in form, with teeth on the outer surface at an angle to the axis of the gear. See also gear, antibacklash, helical:

Part 78589H NSN 3020-00-700-1513

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05464
FIIG:
A27300
Concept No.:
1
App. Key:
AF
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:
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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