Model: B55240

Helical Gear

Special Features:

Bore chamfered both ends 3/32 in. By 45 deg

Properties:

Body Style
Plain, solid
Pitch Diameter
3.9170 inches
Teeth Quantity
51
Bore Style
10a w/ keyway both ends
Bore Style
W/ keyway both ends
Outside Diameter
4.0510 inches
Teeth Type
Single helix
Tooth Form
Standard
Tooth Direction
Right
Pressure Angle
14.5000 degrees
Helix Angle
29.4994 degrees
Face Width
1.250 inches
Bore Diameter
2.625 inches both ends
Keyway Width
0.376 inches both ends
Distance From Bore Center To Keyway Bottom
1.505 inches both ends
Material
Steel
Material Specification
Mil-s-890, alloy no. 3 military specification single material response
Style Designator
Hubless
NSN
3020-00-072-6958
Part Number
B55240
Description
Gear,helical
CAGE
16712

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 B55240 NSN 3020-00-072-6958

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:
2.5000lbs
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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