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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:
| BACKLASH DESIGNATION | GRADE A | | BORE NOMINAL DIAMETER | 0.120 INCHES BOTH ENDS | | BORE STYLE | PLAIN BOTH ENDS | | FACE NOMINAL WIDTH | 0.062 INCHES | | HUB STYLE DESIGNATOR | PINNED FIRST END | | HUB STYLE DESIGNATOR | PLAIN SECOND END | | HUB NOMINAL DIAMETER | 0.245 INCHES FIRST END | | HUB NOMINAL DIAMETER | 0.256 INCHES SECOND END | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-766,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 303 OVERALL | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.031 INCHES SECOND END | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.169 INCHES FIRST END | | NOMINAL OUTSIDE DIAMETER | 1.292 INCHES | | PITCH DIAMETER | 1.2500 INCHES NOMINAL | | PRESSURE ANGLE | 14.5000 DEGREES | | PRECISION CLASSIFICATION | QUALITY NUMBER 10 OR QUALITY NUMBER 11 | | STYLE DESIGNATOR | PROTRUDING HUBS | | SURFACE TREATMENT | PASSIVATE OVERALL | | TEETH QUANTITY | 60 | | TOOTH FORM | STANDARD |
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