National Item Identification Number
00-781-8985
007818985
3020-00-781-8985
3020007818985
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)
97942
00141
Reference Numbers (Part Numbers)
575R324H22
610234-22
Required Categories
TEETH QUANTITY
TOOTH FORM
PRESSURE ANGLE
PRECISION CLASSIFICATION
STYLE DESI
Required Description
90
STANDARD
20.0000 DEGREES
QUALITY NUMBER 12
2 PROTRUDING HUB
1.4062 INCHE