National Item Identification Number
01-349-8589
013498589
3020-01-349-8589
3020013498589
National Stock Number
Item Name
GEAR,ANTIBACKLASH,SPUR
Federal Supply Class
3020
Description
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.
Commercial and Government Entity Code (Supplier Data)
Reference Numbers (Part Numbers)
656087-001
Required Categories
MATERIAL
TEETH QUANTITY
PRESSURE ANGLE
STYLE DESIGNATOR
PITCH DIAMETER
NOMI
Required Description
STEEL CORROSION RESISTING AND
ALUMINUM HUB
72
20.0000 DEGREES
2 PROTRUDING H
