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National Stock Number:
3020-00-351-2344
Federal Supply Class:
3020
National Item Identification Number:
003512344
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:
| 680875-0001 | 06481 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | 680875-1 | 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 | STANDARD | | PRESSURE ANGLE | 20.0000 DEGREES | | PRECISION CLASSIFICATION | QUALITY NUMBER 10 | | STYLE DESIGNATOR | PROTRUDING HUBS | | PITCH DIAMETER | 1.2490 INCHES MINIMUM AND | | 1.2500 INCHES MAXIMUM | | NOMINAL OUTSIDE DIAMETER | 1.266 INCHES | | FACE NOMINAL WIDTH | 0.144 INCHES | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.069 INCHES FIRST END | | 0.140 INCHES SECOND END | | BORE STYLE | PLAIN BOTH ENDS | | BORE NOMINAL DIAMETER | 0.120 INCHES BOTH ENDS | | HUB STYLE DESIGNATOR | PLAIN FIRST END | | SPLIT SECOND END | | HUB NOMINAL DIAMETER | 0.250 INCHES FIRST END | | 0.143 INCHES SECOND END | | CLAMPING SURFACE NOMINAL LENGTH | 0.135 INCHES SECOND END | | ATTACHMENT METHOD | CLAMP | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 06481 | | DESIGN CONTROL REFERENCE | 680875-0001 |
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