Model: 42735P2

Helical Antibacklash Gear

Properties:

Attachment Method
Mounting hole
Pitch Diameter
0.4746 inches
Teeth Quantity
15
Bore Style
W/counterbore both ends
Mounting Hole Type And Quantity
2 plain axially through hub, first end
Outside Diameter
0.523 inches
Teeth Type
Single helix
Tooth Form
Standard
Tooth Direction
Left
Pressure Angle
20.0000 degrees
Helix Angle
9.0000 degrees
Distance Between Body Face And Protruding Hub End
0.015 inches both ends
Face Width
0.405 inches
Bore Diameter
0.220 inches both ends
Counterbore Depth
0.015 inches both ends
Counterbore Diameter
0.220 inches both ends
Hub Style Designator
Plain both ends
Hub Diameter
0.365 inches both ends
Precision Classification
Quality number 6 or quality number 7
Mounting Hole Diameter
0.045 inches axially through hub, first end
Bolt Hole Circle Diameter
0.290 inches axially through hub, first end
Material
Plastic polyhexamethylene adipamide
Material Specification
L-p-410 federal specification single material response
Style Designator
Protruding hubs
NSN
3020-01-128-4681
Part Number
42735P2
Description
Gear,antibacklash,helical
CAGE
25734

An item having one fixed gear and one free gear, both having the same complement of helical gear teeth, mounted on a common hub. The free gear is attached to the fixed gear by springs and operates as one gear. Upon installation with the mating gear, the teeth of the free moving gear are preset to mesh with teeth other than those of the fixed gear. This spring tension between the fixed gear and the free gear eliminates any free motion between the driver and the driven gear. The gear is used where identical and accurate transmitted motion between gears is required.

Part 42735P2 NSN 3020-01-128-4681

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
26667
FIIG:
A27300
Concept No.:
App. Key:
AB
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:
A
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.4000lbs
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:
133300
UFC:
63220
LTL:
RATING VARIABLE
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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