National Item Identification Number
00-056-5455
000565455
3020-00-056-5455
3020000565455
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)
95542
Reference Numbers (Part Numbers)
242-639-0002
Required Categories
TEETH QUANTITY
TOOTH FORM
PRESSURE ANGLE
PRECISION CLASSIFICATION
STYLE DESI
Required Description
90
SPECIAL
20.0000 DEGREES
QUALITY NUMBER 12
2 PROTRUDING HUB
0.9365 INCHES