Model: 3B7944

Helical Gear

Special Features:

Two 0.453 in. Diameter puller holes drilled 1.625 in. Deep and counterbored 0.516 in. By 0.375 in. Deep, tapped 0.500-20 nf thd size, 180 degrees apart 0n a 4.938 in. Diameter bolt circle, letter c marked on side of gear face 48 degrees 51 min 30 sec to left of center line of keyway

Properties:

Body Style
Plain, solid
Pitch Diameter
6.3333 inches
Teeth Quantity
40
Bore Style
10a w/ keyway both ends
Bore Style
W/ keyway both ends
Hardness Rating
82.9 rockwell b hub and 96.4 rockwell b hub
Hardness Rating
82.9 rockwell b teeth and 96.4 rockwell b teeth
Outside Diameter
6.6165 inches
Teeth Type
Single helix
Tooth Form
Standard
Tooth Direction
Right
Pressure Angle
20.0000 degrees
Helix Angle
25.5438 degrees
Distance Between Body Face And Protruding Hub End
1.1848 inches first end
Face Width
1.625 inches
Bore Diameter
2.7498 inches both ends
Keyway Width
0.4935 inches both ends
Distance From Bore Center To Keyway Bottom
1.605 inches both ends
Hub Style Designator
Plain first end
Hub Diameter
3.750 inches first end
Material
Steel comp 1045
Material Specification
66 federal standard single material response and aisi/sae 1045 assn standard single material response
Style Designator
Protruding hub
NSN
3020-00-275-3042
Part Number
3B7944
Description
Gear,helical
CAGE
11083

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 3B7944 NSN 3020-00-275-3042

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:
14.0000lbs
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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