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National Stock Number:
3020-00-891-3759
Federal Supply Class:
3020
National Item Identification Number:
008913759
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:
| 10181794-1 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND | | AB350-120-1873 | 01351 | SOUTHERN GEAR & MACHINE INC |
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Techincal Specification:
| BORE NOMINAL DIAMETER | 0.187 INCHES BOTH ENDS | | BORE STYLE | PLAIN BOTH ENDS | | FACE NOMINAL WIDTH | 0.125 INCHES | | HUB NOMINAL DIAMETER | 0.563 INCHES FIRST END | | HUB STYLE DESIGNATOR | PINNED FIRST END | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-7720 MIL SPEC SINGLE MATERIAL RESPONSE HUB | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/6 T4 FED SPEC SINGLE MATERIAL RESPONSE TEETH | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE BODY | | MATERIAL | ALUMINUM ALLOY 2024 BODY | | MATERIAL | ALUMINUM ALLOY 2024 TEETH | | MATERIAL | STEEL COMP 303S HUB | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.250 INCHES FIRST END | | NOMINAL OUTSIDE DIAMETER | 1.694 INCHES | | PITCH DIAMETER | 1.6660 INCHES NOMINAL | | PRESSURE ANGLE | 20.0000 DEGREES | | STYLE DESIGNATOR | PROTRUDING HUB | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625,TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE BODY | | SURFACE TREATMENT | ANODIZE BODY | | SURFACE TREATMENT | PASSIVATE HUB | | TEETH QUANTITY | 120 | | TOOTH FORM | STANDARD |
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