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National Stock Number:
3020-00-431-6198
Federal Supply Class:
3020
National Item Identification Number:
004316198
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:
| 680844-0001 | 06481 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | 680844-1 | 06481 | NORTHROP GRUMMAN SYSTEMS CORPORATION |
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Techincal Specification:
| ATTACHMENT METHOD | CLAMP | | BORE NOMINAL DIAMETER | 0.144 INCHES BOTH ENDS | | BORE STYLE | PLAIN BOTH ENDS | | CLAMPING SURFACE NOMINAL LENGTH | 0.135 INCHES SECOND END | | FACE NOMINAL WIDTH | 0.147 INCHES | | HUB STYLE DESIGNATOR | PLAIN FIRST END | | HUB STYLE DESIGNATOR | SPLIT SECOND END | | HUB NOMINAL DIAMETER | 0.182 INCHES SECOND END | | HUB NOMINAL DIAMETER | 0.250 INCHES FIRST END | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/8,T651 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | ALUMINUM ALLOY 6061 OVERALL | | PITCH DIAMETER | 1.2500 INCHES NOMINAL | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.168 INCHES FIRST END | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.140 INCHES SECOND END | | NOMINAL OUTSIDE DIAMETER | 1.265 INCHES | | PRECISION CLASSIFICATION | QUALITY NUMBER 12 | | PRESSURE ANGLE | 20.0000 DEGREES | | STYLE DESIGNATOR | PROTRUDING HUBS | | TEETH QUANTITY | 150 | | TOOTH FORM | STUB |
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