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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:
| MATERIAL | COPPER ALLOY 642 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-679 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | TEETH QUANTITY | 52 | | TOOTH FORM | STANDARD | | PRESSURE ANGLE | 20.0000 DEGREES | | PRECISION CLASSIFICATION | QUALITY NUMBER 11 | | STYLE DESIGNATOR | PROTRUDING HUBS | | PITCH DIAMETER | 0.6500 INCHES NOMINAL | | NOMINAL OUTSIDE DIAMETER | 0.673 INCHES | | FACE NOMINAL WIDTH | 0.130 INCHES | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.240 INCHES FIRST END | | 0.040 INCHES SECOND END | | BORE STYLE | PLAIN BOTH ENDS | | BORE NOMINAL DIAMETER | 0.090 INCHES BOTH ENDS | | HUB STYLE DESIGNATOR | SPLIT FIRST END | | PLAIN SECOND END | | HUB NOMINAL DIAMETER | 0.186 INCHES FIRST END | | 0.187 INCHES SECOND END | | CLAMPING SURFACE NOMINAL LENGTH | 0.165 INCHES FIRST END | | ATTACHMENT METHOD | CLAMP |
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