Model: A1027

Helical Gear

Special Features:

First end splined on outer periphery, 15 teeth, 20 degrees pressure angle, 2.403 in. Min, 2.408 in. Max major dia, 2.075 in. Min, 2.095 in. Max minor dia

Properties:

Body Style
Webbed, offset, solid
Spline Quantity
6 both ends
Pitch Diameter
3.8572 inches
Teeth Quantity
27
Bore Style
Straight spline both ends
Hardness Rating
59.0 rockwell c hub and 62.0 rockwell c hub
Hardness Rating
59.0 rockwell c teeth and 62.0 rockwell c teeth
Outside Diameter
4.103 inches
Nominallength
1.687 inches
Teeth Type
Single helix
Tooth Form
Standard
Tooth Direction
Left
Pressure Angle
20.0000 degrees
Helix Angle
30.0000 degrees
Distance Between Body Face And Protruding Hub End
0.437 inches first end
Distance Between Body Face And Protruding Hub End
0.438 inches second end
Face Width
0.812 inches
Bore Diameter
1.190 inches both ends
Counterbore Depth
0.219 inches first end
Counterbore Diameter
1.6200 inches first end
Hub Style Designator
1 groove first end
Hub Style Designator
Plain second end
Hub Diameter
1.750 inches second end
End Diameter
2.406 inches first end
First Groove Width
0.125 inches first end
First Groove Diameter
2.060 inches first end
Distance From End To First Groove
0.312 inches first end
Material
Steel
Material Specification
Ed standard 66, aisi/sae 4027 federal standard 5th material response
Style Designator
Protruding hubs
NSN
3020-00-737-1207
Part Number
A1027
Description
Gear,helical
CAGE
34623

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 A1027 NSN 3020-00-737-1207

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:
60.0
WCC:
593
TCC:
Z
SHC:
9
ACC:
Construction Materials

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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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