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National Stock Number:
3020-00-563-3835
Federal Supply Class:
3020
National Item Identification Number:
005633835
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:
| 8171740 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND |
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Techincal Specification:
| BORE STYLE | PLAIN BOTH ENDS | | BORE NOMINAL DIAMETER | 0.750 INCHES BOTH ENDS | | HARDNESS RATING | 25.0 ROCKWELL C NOMINAL HUB | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE BODY | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763,CL 6,TA FED SPEC SINGLE MATERIAL RESPONSE HUB | | MATERIAL | ALUMINUM ALLOY 2024 BODY | | MATERIAL | STEEL HUB | | PRECISION CLASSIFICATION | QUALITY NUMBER 8 OR QUALITY NUMBER 12 | | PRESSURE ANGLE | 14.5000 DEGREES | | STYLE DESIGNATOR | PROTRUDING HUBS | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-STD-171,5.4 MIL STD SINGLE TREATMENT RESPONSE HUB | | SURFACE TREATMENT | PASSIVATE HUB | | TEETH QUANTITY | 63 | | TOOTH FORM | STANDARD |
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