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National Stock Number:
3020-00-979-4420
Federal Supply Class:
3020
National Item Identification Number:
009794420
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:
| 3318-060 | 90073 | CMC ELECTRONICS INC |
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Techincal Specification:
| MATERIAL | STEEL COMP 303 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-766,COND A 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 10 OR | | QUALITY NUMBER 11 | | BACKLASH DESIGNATION | GRADE A | | STYLE DESIGNATOR | PROTRUDING HUBS | | PITCH DIAMETER | 1.2500 INCHES NOMINAL | | NOMINAL OUTSIDE DIAMETER | 1.292 INCHES | | FACE NOMINAL WIDTH | 0.062 INCHES | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.169 INCHES FIRST END | | 0.031 INCHES SECOND END | | BORE STYLE | PLAIN BOTH ENDS | | BORE NOMINAL DIAMETER | 0.120 INCHES BOTH ENDS | | HUB STYLE DESIGNATOR | PINNED FIRST END | | PLAIN SECOND END | | HUB NOMINAL DIAMETER | 0.245 INCHES FIRST END | | 0.256 INCHES SECOND END |
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