Product Details | SPUR ANTIBACKLASH GEAR

3020-01-038-4090 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 Alternates: AC64W120Q12, AC64W-120-Q12, P173120CQ12, P17-3-120-CQ12, 3020-01-038-4090, 01-038-4090, 3020010384090, 010384090

Mechanical Power Transmission Equipment | Gears, Pulleys, Sprockets, and Transmission Chain

Supply Group (FSG) NSN Assign. NIIN
30 07 APR 1977 01-038-4090

Drawings & Photos | NSN 3020-01-038-4090


Cross Reference | NSN 3020-01-038-4090

Part Number Cage Code Manufacturer
AC64W-120-Q12 29440 W. M. BERG INC
P17-3-120-CQ12 00141 ROLLER BEARING COMPANY OF AMERICA, INC.

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Technical Data | NSN 3020-01-038-4090

Characteristic Specifications
MATERIAL STEEL COMP 303 OVERALL
TEETH QUANTITY 120
PRESSURE ANGLE 20.0000 DEGREES
PRECISION CLASSIFICATION QUALITY NUMBER 12
STYLE DESIGNATOR 2 PROTRUDING HUB
PITCH DIAMETER 1.8750 INCHES NOMINAL
NOMINAL OUTSIDE DIAMETER 1.906 INCHES
FACE NOMINAL WIDTH 0.104 INCHES
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END 0.281 INCHES FIRST END
BORE STYLE 1 PLAIN BOTH ENDS
BORE NOMINAL DIAMETER 0.250 INCHES BOTH ENDS
HUB STYLE DESIGNATOR 2 SPLIT FIRST END
HUB NOMINAL DIAMETER 0.312 INCHES FIRST END
CLAMPING SURFACE NOMINAL LENGTH 0.250 INCHES FIRST END
ATTACHMENT METHOD CLAMP

Restrictions/Controls & Freight Information | NSN 3020-01-038-4090

Category Code Description
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Precious Metals Indicator Code:AItem does not contain precious metal
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
No Freight Information