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National Stock Number:
3020-00-972-4501
Federal Supply Class:
3020
National Item Identification Number:
009724501
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:
| 3320-267 | 90073 | CMC ELECTRONICS INC |
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Techincal Specification:
| MATERIAL | STEEL COMP 302 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | TEETH QUANTITY | 60 | | TOOTH FORM | STANDARD | | PRESSURE ANGLE | 14.5000 DEGREES | | PRECISION CLASSIFICATION | QUALITY NUMBER 8 | | STYLE DESIGNATOR | PROTRUDING HUB | | PITCH DIAMETER | 1.2500 INCHES NOMINAL | | NOMINAL OVERALL LENGTH | 0.2970 INCHES | | NOMINAL OUTSIDE DIAMETER | 1.2920 INCHES | | FACE NOMINAL WIDTH | 0.062 INCHES | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.210 INCHES FIRST END | | BORE STYLE | PLAIN BOTH ENDS | | BORE NOMINAL DIAMETER | 0.125 INCHES BOTH ENDS | | HUB STYLE DESIGNATOR | PINNED FIRST END | | HUB NOMINAL DIAMETER | 0.375 INCHES FIRST END | | ATTACHMENT METHOD | MOUNTING HOLE | | MOUNTING HOLE TYPE AND QUANTITY | 1 THREADED TRANSVERSELY THROUGH HUB, FIRST END | | MOUNTING HOLE THREAD SERIES DESIGNATOR | UNC TRANSVERSELY THROUGH HUB, FIRST END | | MOUNTING HOLE NOMINAL THREAD SIZE | 0.086 INCHES TRANSVERSELY THROUGH HUB, FIRST END | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 90073 | | DESIGN CONTROL REFERENCE | 3320-267 |
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