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National Stock Number:
3020-00-807-8792
Federal Supply Class:
3020
National Item Identification Number:
008078792
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:
| 30138-68 | 07421 | L3HARRIS INTERSTATE ELECTRONICS CORPORATION |
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Techincal Specification:
| MATERIAL | STEEL OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-268 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | TEETH QUANTITY | 68 | | TOOTH FORM | STANDARD | | PRESSURE ANGLE | 20.0000 DEGREES | | STYLE DESIGNATOR | PROTRUDING HUB | | PITCH DIAMETER | 0.5667 INCHES NOMINAL | | NOMINAL OUTSIDE DIAMETER | 0.5830 INCHES | | FACE NOMINAL WIDTH | 0.057 INCHES | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.152 INCHES FIRST END | | BORE STYLE | PLAIN BOTH ENDS | | BORE NOMINAL DIAMETER | 0.120 INCHES BOTH ENDS | | HUB STYLE DESIGNATOR | 1 STEP FIRST END | | END NOMINAL LENGTH | 0.110 INCHES FIRST END | | END NOMINAL DIAMETER | 0.156 INCHES FIRST END | | FIRST STEP NOMINAL LENGTH | 0.041 INCHES FIRST END | | FIRST STEP NOMINAL DIAMETER | 0.187 INCHES FIRST END | | ATTACHMENT METHOD | CLAMP |
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