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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:
| MATERIAL | ALUMINUM ALLOY 6061 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/8,T651 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | TEETH QUANTITY | 150 | | TOOTH FORM | STUB | | PRESSURE ANGLE | 20.0000 DEGREES | | PRECISION CLASSIFICATION | QUALITY NUMBER 12 | | STYLE DESIGNATOR | PROTRUDING HUBS | | PITCH DIAMETER | 1.2500 INCHES NOMINAL | | NOMINAL OUTSIDE DIAMETER | 1.265 INCHES | | FACE NOMINAL WIDTH | 0.147 INCHES | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.168 INCHES FIRST END | | 0.140 INCHES SECOND END | | BORE STYLE | PLAIN BOTH ENDS | | BORE NOMINAL DIAMETER | 0.144 INCHES BOTH ENDS | | HUB STYLE DESIGNATOR | PLAIN FIRST END | | SPLIT SECOND END | | HUB NOMINAL DIAMETER | 0.250 INCHES FIRST END | | 0.182 INCHES SECOND END | | CLAMPING SURFACE NOMINAL LENGTH | 0.135 INCHES SECOND END | | ATTACHMENT METHOD | CLAMP | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 06481 | | DESIGN CONTROL REFERENCE | 680844-0001 |
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