Model: 261220R1

Helical Gear

Special Features:

Timing mark under center line of 2nd tooth from center line of keyway on face of gear, tooth on side opposite punch mark @chamfered 1/16 in. By 45 deg

Properties:

Body Style
Webbed, offset, solid
Pitch Diameter
3.2193 inches
Teeth Quantity
27
Bore Style
10a w/ keyway both ends
Bore Style
W/ keyway both ends
Hardness Rating
30.0 rockwell c and 37.0 rockwell c
Outside Diameter
3.420 inches
Teeth Type
Single helix
Tooth Form
Standard
Tooth Direction
Right
Pressure Angle
14.5000 degrees
Helix Angle
33.0000 degrees
Face Width
0.750 inches
Bore Diameter
0.751 inches both ends
Keyway Width
0.127 inches both ends
Distance From Bore Center To Keyway Bottom
0.440 inches both ends
Hub Style Designator
Plain first end
Hub Diameter
1.250 inches first end
Material
Steel comp 1040
Material Specification
66 federal standard single material response
Style Designator
Hubless
NSN
3020-00-200-1472
Part Number
261220R1
Description
Gear,helical
CAGE
29510

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 261220R1 NSN 3020-00-200-1472

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:
--
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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