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National Stock Number:
3020-01-031-8519
Federal Supply Class:
3020
National Item Identification Number:
010318519
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:
| 01-487 | 23266 | SECS, INC. | | 2502813 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER |
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Techincal Specification:
| ATTACHMENT METHOD | MOUNTING HOLE | | BORE STYLE | PLAIN BOTH ENDS | | BORE NOMINAL DIAMETER | 0.125 INCHES BOTH ENDS | | END NOMINAL DIAMETER | 0.187 INCHES FIRST END | | END NOMINAL LENGTH | 0.065 INCHES FIRST END | | FACE NOMINAL WIDTH | 0.104 INCHES | | FIRST STEP NOMINAL DIAMETER | 0.437 INCHES FIRST END | | FIRST STEP NOMINAL LENGTH | 0.044 INCHES FIRST END | | HUB STYLE DESIGNATOR | 2 STEPS FIRST END | | MATERIAL | STEEL COMP 303 OVERALL | | MOUNTING HOLE NOMINAL DIAMETER | 0.343 INCHES AXIALLY THROUGH HUB, FIRST END | | MOUNTING HOLE TYPE AND QUANTITY | 2 PLAIN AXIALLY THROUGH HUB, FIRST END | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.139 INCHES FIRST END | | NOMINAL OUTSIDE DIAMETER | 1.604 INCHES | | PITCH DIAMETER | 1.5625 INCHES NOMINAL | | PRESSURE ANGLE | 20.0000 DEGREES | | SECOND STEP NOMINAL DIAMETER | 0.750 INCHES FIRST END | | SECOND STEP NOMINAL LENGTH | 0.030 INCHES FIRST END | | STYLE DESIGNATOR | PROTRUDING HUB | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | TEETH QUANTITY | 75 | | TOOTH FORM | STANDARD |
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