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National Stock Number:
3020-00-127-0097
Federal Supply Class:
3020
National Item Identification Number:
001270097
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:
| 134012-501 | 05257 | GENERAL DYNAMICS LAND SYSTEMS - CANADA CORPORATION |
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Techincal Specification:
| ATTACHMENT METHOD | CLAMP | | BORE STYLE | PLAIN BOTH ENDS | | BORE NOMINAL DIAMETER | 0.090 INCHES BOTH ENDS | | CLAMPING SURFACE NOMINAL LENGTH | 0.165 INCHES FIRST END | | FACE NOMINAL WIDTH | 0.130 INCHES | | HUB NOMINAL DIAMETER | 0.187 INCHES SECOND END | | HUB NOMINAL DIAMETER | 0.186 INCHES FIRST END | | HUB STYLE DESIGNATOR | PLAIN SECOND END | | HUB STYLE DESIGNATOR | SPLIT FIRST END | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-679 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | COPPER ALLOY 642 OVERALL | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.040 INCHES SECOND END | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.240 INCHES FIRST END | | NOMINAL OUTSIDE DIAMETER | 0.673 INCHES | | PITCH DIAMETER | 0.6500 INCHES NOMINAL | | PRECISION CLASSIFICATION | QUALITY NUMBER 11 | | PRESSURE ANGLE | 20.0000 DEGREES | | STYLE DESIGNATOR | PROTRUDING HUBS | | TEETH QUANTITY | 52 | | TOOTH FORM | STANDARD |
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