Model: 641282

Helical Gear

Special Features:

Two puller holes, timing mark 51 degrees 58 min plus or minus 30 min ccw from center line of keyway on center line of tooth space

Properties:

Body Style
Plain, solid
Pitch Diameter
3.2015 inches
Teeth Quantity
28
Bore Style
10a w/ keyway both ends
Bore Style
W/ keyway both ends
Hardness Rating
86.0 rockwell b and 97.0 rockwell b
Outside Diameter
3.3985 inches
Teeth Type
Single helix
Tooth Form
Standard
Tooth Direction
Left
Pressure Angle
14.5000 degrees
Helix Angle
29.0000 degrees
Distance Between Body Face And Protruding Hub End
0.1350 inches first end
Face Width
1.062 inches
Bore Diameter
1.250 inches both ends
Keyway Width
0.189 inches both ends
Distance From Bore Center To Keyway Bottom
0.7229 inches both ends
Hub Style Designator
Plain first end
Hub Diameter
2.750 inches first end
Material
Iron cast
Style Designator
Protruding hub
NSN
3020-00-274-2906
Part Number
641282
Description
Gear,helical
CAGE
28835

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 641282 NSN 3020-00-274-2906

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:
2.1000lbs
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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