NSN 3020-00-481-2421

Part Details | SPUR ANTIBACKLASH GEAR

3020-00-481-2421 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: AB250852498, AB250-85-2498, 3020-00-481-2421, 00-481-2421, 3020004812421, 004812421

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
30SEP 16, 197000-481-242126668 ( GEAR, ANTIBACKLASH, SPUR )
REFERENCE DRAWINGS & PICTURES

PROTRUDING HUB

Cross Reference | NSN 3020-00-481-2421
Part Number Cage Code Manufacturer
AB250-85-249801351SOUTHERN GEAR & MACHINE, INC.
Technical Data | NSN 3020-00-481-2421
Characteristic Specifications
TEETH QUANTITY85
TOOTH FORM STANDARD
PRESSURE ANGLE20.0000 DEGREES
STYLE DESIGNATOR PROTRUDING HUB
PITCH DIAMETER1.3271 INCHES MINIMUM AND 1.3281 INCHES MAXIMUM
NOMINAL OUTSIDE DIAMETER1.3583 INCHES
FACE NOMINAL WIDTH0.125 INCHES