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National Stock Number:
3020-00-137-6320
Federal Supply Class:
3020
National Item Identification Number:
001376320
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:
| 10636 | 83942 | THE AERONAUTICAL INSTRUMENT AND RADIO COMPANY |
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Techincal Specification:
| BORE NOMINAL DIAMETER | 0.640 INCHES BOTH ENDS | | BORE STYLE | PLAIN BOTH ENDS | | FACE NOMINAL WIDTH | 0.111 INCHES | | HUB NOMINAL DIAMETER | 0.125 INCHES FIRST END | | HUB NOMINAL DIAMETER | 0.187 INCHES SECOND END | | HUB STYLE DESIGNATOR | PINNED SECOND END | | HUB STYLE DESIGNATOR | PLAIN FIRST END | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-764,TYPE 303,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 303 OVERALL | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.359 INCHES SECOND END | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.388 INCHES FIRST END | | NOMINAL OUTSIDE DIAMETER | 0.978 INCHES | | PITCH DIAMETER | 0.9570 INCHES MINIMUM AND 0.9580 INCHES MAXIMUM | | PRESSURE ANGLE | 20.0000 DEGREES | | STYLE DESIGNATOR | PROTRUDING HUBS | | SURFACE TREATMENT | PASSIVATE OVERALL | | TEETH QUANTITY | 92 |
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