NSN 3020-01-085-2891

Part Details | SPUR ANTIBACKLASH GEAR

3020-01-085-2891 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.

Alternate Parts: 577R646H14, 3020-01-085-2891, 01-085-2891, 3020010852891, 010852891

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
30NOV 05, 197901-085-289126668 ( GEAR, ANTIBACKLASH, SPUR )
REFERENCE DRAWINGS & PICTURES

PROTRUDING HUB

Cross Reference | NSN 3020-01-085-2891
Part Number Cage Code Manufacturer
577R646H1497942NORTHROP GRUMMAN SYSTEMS CORPORATIONDIV NORTHROP GRUMMAN SYSTEMS
Technical Data | NSN 3020-01-085-2891
Characteristic Specifications
TEETH QUANTITY130
TOOTH FORM STUB
PRESSURE ANGLE20.0000 DEGREES
PRECISION CLASSIFICATION QUALITY NUMBER 12
STYLE DESIGNATOR PROTRUDING HUB
PITCH DIAMETER2.0630 INCHES NOMINAL
NOMINAL OVERALL LENGTH0.385 INCHES
NOMINAL OUTSIDE DIAMETER2.0312 INCHES
FACE NOMINAL WIDTH0.104 INCHES
ATTACHMENT METHOD MOUNTING HOLE