Model: 311-1200

Helical Gear

Special Features:

Mtg holes 90 degs apart

Properties:

Body Style
Plain, solid
Attachment Method
Mounting hole
Pitch Diameter
0.9280 inches
Teeth Quantity
42
Bore Style
Plain both ends
Mounting Hole Thready Qty Per Inch (tpi)
32 transversely through hub, first end
Hardness Rating
33.0 rockwell c hub
Hardness Rating
48.0 rockwell c teeth
Mounting Hole Type And Quantity
2 threaded transversely through hub, first end
Outside Diameter
0.9580 inches
Nominallength
1.125 inches
Teeth Type
Single helix
Tooth Form
Special
Tooth Direction
Left
Pressure Angle
14.5000 degrees
Helix Angle
18.0000 degrees
Distance Between Body Face And Protruding Hub End
0.188 inches second end
Distance Between Body Face And Protruding Hub End
0.281 inches first end
Face Width
0.656 inches
Bore Diameter
0.2500 inches both ends
Hub Style Designator
Pinned first end
Hub Diameter
0.625 inches first end
Material
Plastic phenolic body
Material
Steel hub
Style Designator
Protruding hubs
NSN
3020-00-351-8995
Part Number
311-1200
Description
Gear,helical
CAGE
21900

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 311-1200 NSN 3020-00-351-8995

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

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.1000lbs
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

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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