NSN 3020-00-455-1225

Part Details | SPUR ANTIBACKLASH GEAR

3020-00-455-1225 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: 201783, 20178-3, 3020-00-455-1225, 00-455-1225, 3020004551225, 004551225

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
30MAY 27, 197100-455-122526668 ( GEAR, ANTIBACKLASH, SPUR )
REFERENCE DRAWINGS & PICTURES

PROTRUDING HUB

Cross Reference | NSN 3020-00-455-1225
Part Number Cage Code Manufacturer
20178-314632DRS SIGNAL SOLUTIONS, INC.
Technical Data | NSN 3020-00-455-1225
Characteristic Specifications
TEETH QUANTITY60
TOOTH FORM STANDARD
PRESSURE ANGLE20.0000 DEGREES
PRECISION CLASSIFICATIONU$V
STYLE DESIGNATOR PROTRUDING HUB
PITCH DIAMETER0.9375 INCHES NOMINAL
NOMINAL OVERALL LENGTH0.375 INCHES
NOMINAL OUTSIDE DIAMETER0.9688 INCHES
FACE NOMINAL WIDTH0.125 INCHES
ATTACHMENT METHOD MOUNTING HOLE
SPECIAL FEATURESTWO THREADED MTG HOLES LOCATED HUB BETWEEN HUB END AND GEAR FACE 90 DEG APART; UNC THREAD SERIES; MTG HOLE NOM THD SIZE 0.112 IN.; 40 THDS PER IN.