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National Stock Number: 3020-00-919-7461
Federal Supply Class: 3020
National Item Identification Number: 009197461
Description: GEAR,ANTIBACKLASH,SPUR
Detail: 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.
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Manufacturer Information:
656836 | 06481 | NORTHROP GRUMMAN SYSTEMS CORPORATION | 656836 | 66672 | GUPTILL GEAR CORP |
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Techincal Specification:
MATERIAL | ALUMINUM ALLOY 6061 OVERALL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/8,T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | TEETH QUANTITY | 150 | TOOTH FORM | STANDARD | PRESSURE ANGLE | 20.0000 DEGREES | STYLE DESIGNATOR | PROTRUDING HUBS | PITCH DIAMETER | 1.5625 INCHES NOMINAL | NOMINAL OUTSIDE DIAMETER | 1.583 INCHES | FACE NOMINAL WIDTH | 0.104 INCHES | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.188 INCHES FIRST END | | 0.078 INCHES SECOND END | BORE STYLE | PLAIN BOTH ENDS | BORE NOMINAL DIAMETER | 0.125 INCHES BOTH ENDS | HUB STYLE DESIGNATOR | PLAIN BOTH ENDS | HUB NOMINAL DIAMETER | 0.188 INCHES FIRST END | | 0.250 INCHES SECOND END | SPECIAL FEATURES | 1ST END HUB TERMINATES INTO RECTANGULAR SPLIT CLAMPING DEVICE,0.216 IN.W BY 0.531 IN. LG BY 0.250 IN. HT,W/2 THD CLAMPING HOLES | THE MANUFACTURERS DATA | | MANUFACTURERS CODE | 66672 | DESIGN CONTROL REFERENCE | 656836 |
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