Model: N29978PCA

Helical Gear

Special Features:

Two counterweights, bolts, nuts, oil holes in hub, fig 1 stamped between teeth on side of gear 170 degrees 57 min ccw from upper center line, fig 4 stamped between teeth on side @of gear 73 degrees @20 min ccw from fig 1

Properties:

Body Style
Webbed, with lightening holes
Pitch Diameter
10.8000 inches
Teeth Quantity
54
Bore Style
Plain both ends
Hardness Rating
10.0 rockwell c and 20.0 rockwell c
Outside Diameter
11.084 inches
Teeth Type
Single helix
Tooth Form
Standard
Tooth Direction
Left
Pressure Angle
20.0000 degrees
Helix Angle
27.3217 degrees
Distance Between Body Face And Protruding Hub End
0.688 inches both ends
Face Width
2.000 inches
Bore Diameter
2.0000 inches both ends
Hub Style Designator
1 step both ends
End Length
1.375 inches both ends
End Diameter
2.997 inches both ends
First Step Length
0.063 inches both ends
First Step Diameter
4.125 inches both ends
Material
Steel
Material Specification
Mil-s-890, class b military specification single material response
Style Designator
Protruding hubs
NSN
3020-00-391-0927
Part Number
N29978PCA
Description
Gear,helical
CAGE
55380

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 N29978PCA NSN 3020-00-391-0927

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:
26.0000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
M
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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