Model: 3706

Helical Gear

Properties:

Body Style
Webbed, solid
Attachment Method
Mounting hole
Pitch Diameter
22.0000 inches
Teeth Quantity
220
Bore Style
Tapered w/keyway both ends
Hardness Rating
160.0 brinell standard
Mounting Hole Type And Quantity
4 plain axially through body, first end
Outside Diameter
22.167 inches
Teeth Type
Single helix
Tooth Form
Standard
Tooth Direction
Right
Pressure Angle
20.0000 degrees
Helix Angle
11.7167 degrees
Distance Between Body Face And Protruding Hub End
1.438 inches first end
Distance Between Body Face And Recessed Hub End
1.261 inches second end
Face Width
3.000 inches
Keyway Width
0.750 inches both ends
Distance From Bore Center To Keyway Bottom
2.656 inches both ends
Taper Major Diameter
3.500 inches both ends
Hub Style Designator
Plain both ends
Hub Diameter
16.500 inches both ends
Mounting Hole Diameter
1.000 inches axially through body, first end
Material
Steel
Material Specification
Mil-s-890, class b military specification single material response
Style Designator
One protruding hub, one recessed hub
NSN
3020-00-399-4304
Part Number
3706
Description
Gear,helical
CAGE
90099

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 3706 NSN 3020-00-399-4304

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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