Model: 311770

Helical Gear

Special Features:

Mtg holes 180 degs apart

Properties:

Body Style
Plain, solid
Attachment Method
Mounting hole
Pitch Diameter
1.2500 inches
Teeth Quantity
40
Bore Style
Plain both ends
Mounting Hole Type And Quantity
2 plain transversely through hub, first end
Outside Diameter
1.3125 inches
Teeth Type
Single helix
Tooth Form
Special
Tooth Direction
Right
Pressure Angle
20.0000 degrees
Helix Angle
17.0000 degrees
Distance Between Body Face And Protruding Hub End
0.531 inches first end
Face Width
0.500 inches
Bore Diameter
0.3125 inches both ends
Hub Style Designator
Pinned first end
Hub Diameter
0.688 inches first end
Mounting Hole Diameter
0.141 inches transversely through hub, first end
Material
Plastic polyamide body
Material
Plastic polyamide teeth
Material
Steel hub
Style Designator
Protruding hub
NSN
3020-00-764-7837
Part Number
311770
Description
Gear,helical
CAGE
57712

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 311770 NSN 3020-00-764-7837

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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