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National Stock Number:
3020-01-073-1158
Federal Supply Class:
3020
National Item Identification Number:
010731158
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:
| 901040 | 82577 | RAYTHEON COMPANY | | 901040-1C | 82577 | RAYTHEON COMPANY | | 9703-1019 | 12444 | DESIGNATRONICS INC PERFECT GEAR AND INSTRUMENT DIV | | P12-1-80C | 00141 | ROLLER BEARING CO OF AMERICA, INC |
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Techincal Specification:
| ATTACHMENT METHOD | CLAMP | | BORE STYLE | PLAIN BOTH ENDS | | BORE NOMINAL DIAMETER | 0.125 INCHES BOTH ENDS | | FACE NOMINAL WIDTH | 0.104 INCHES | | HUB NOMINAL DIAMETER | 0.188 INCHES FIRST END | | HUB STYLE DESIGNATOR | SPLIT FIRST END | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-25/4,T4 FED SPEC SINGLE MATERIAL RESPONSE BODY | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-764 FED SPEC SINGLE MATERIAL RESPONSE HUB | | MATERIAL | ALUMINUM ALLOY 2024 BODY | | MATERIAL | STEEL HUB | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.281 INCHES FIRST END | | NOMINAL OUTSIDE DIAMETER | 1.7080 INCHES | | PITCH DIAMETER | 1.6667 INCHES NOMINAL | | PRECISION CLASSIFICATION | QUALITY NUMBER 10 | | PRESSURE ANGLE | 20.0000 DEGREES | | STYLE DESIGNATOR | PROTRUDING HUB | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE BODY | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-STD-171,FINISH NO. 5.4.1 MIL SPEC SINGLE TREATMENT RESPONSE HUB | | SURFACE TREATMENT | ANODIZE BODY | | SURFACE TREATMENT | PASSIVATE HUB | | TEETH QUANTITY | 80 | | TOOTH FORM | STANDARD |
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