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National Stock Number: 3020-00-278-5151
Federal Supply Class: 3020
National Item Identification Number: 002785151
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:
179793-000 | 81413 | BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC. |
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Techincal Specification:
MATERIAL | ALUMINUM ALLOY 2024 BODY | | STEEL COMP 303 HUB | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE BODY | | 66 FED STD SINGLE MATERIAL RESPONSE AND | | MIL-S-7720 MIL SPEC SINGLE MATERIAL RESPONSE HUB | SURFACE TREATMENT | PASSIVATE HUB | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-F-14072 MIL SPEC SINGLE TREATMENT RESPONSE HUB | TEETH QUANTITY | 44 | TOOTH FORM | STUB | PRESSURE ANGLE | 20.0000 DEGREES | PRECISION CLASSIFICATION | QUALITY NUMBER 9 | STYLE DESIGNATOR | PROTRUDING HUB | PITCH DIAMETER | 0.6875 INCHES NOMINAL | NOMINAL OUTSIDE DIAMETER | 0.713 INCHES | FACE NOMINAL WIDTH | 0.108 INCHES | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.173 INCHES FIRST END | BORE STYLE | PLAIN BOTH ENDS | BORE NOMINAL DIAMETER | 0.094 INCHES BOTH ENDS | HUB STYLE DESIGNATOR | SPLIT FIRST END | HUB NOMINAL DIAMETER | 0.124 INCHES FIRST END | CLAMPING SURFACE NOMINAL LENGTH | 0.136 INCHES FIRST END | ATTACHMENT METHOD | CLAMP | THE MANUFACTURERS DATA | | MANUFACTURERS CODE | 81413 | DESIGN CONTROL REFERENCE | 179793-000 |
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