Model: 524-212-030

Spur Antibacklash Gear

Properties:

Attachment Method
Clamp
Pitch Diameter
0.8333 inches
Teeth Quantity
100
Bore Style
Plain both ends
Outside Diameter
0.849 inches
Tooth Form
Stub
Pressure Angle
20.0000 degrees
Distance Between Body Face And Protruding Hub End
0.154 inches first end
Face Width
0.055 inches
Bore Diameter
0.120 inches both ends
Hub Style Designator
Split first end
Hub Diameter
0.157 inches first end
Clamping Surface Length
0.113 inches first end
Precision Classification
Quality number 12
Material
Aluminum alloy
Material Specification
Qq-a-268 federal specification single material response
Surface Treatment
Oxide film
Surface Treatment Specification
21070 cage 92220 mfr ref single treatment response
Style Designator
Protruding hub
Furnished Items And Quantity
1 spring and 1 retaining ring
NSN
3020-00-019-1540
Part Number
524-212-030
Description
Gear,antibacklash,spur
CAGE
07421

An item having one fixed gear and one free gear, both having the same complement of spur 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 524-212-030 NSN 3020-00-019-1540

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
26668
FIIG:
A27300
Concept No.:
App. Key:
AC
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:
--
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:
121870
UFC:
64910
LTL:
77.5
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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