Model: BB23651

Helical Gear

Special Features:

P0.188 in. By 45 degrees chamfer one end of bore, two puller @holes 0.375-16 unc 2b thd located on 3.438 in. Diameter bolt circle, center punch for timing on center of tooth on centerline of keyway on opposite side from chamfer

Properties:

Body Style
Plain, solid
Pitch Diameter
4.6620 inches
Teeth Quantity
36
Bore Style
10a w/ keyway both ends
Bore Style
W/ keyway both ends
Hardness Rating
29.0 rockwell c and 32.0 rockwell c
Outside Diameter
4.866 inches
Teeth Type
Single helix
Tooth Form
Standard
Tooth Direction
Left
Pressure Angle
14.5000 degrees
Helix Angle
39.5167 degrees
Face Width
1.374 inches
Bore Diameter
2.808 inches both ends
Keyway Width
0.377 inches both ends
Distance From Bore Center To Keyway Bottom
1.597 inches both ends
Material
Steel comp 3140
Material Specification
Sae 3140 assn standard single material response
Style Designator
Hubless
NSN
3020-00-528-7128
Part Number
BB23651
Description
Gear,helical
CAGE
56442

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 BB23651 NSN 3020-00-528-7128

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:
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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