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National Stock Number:
3020-00-406-4783
Federal Supply Class:
3020
National Item Identification Number:
004064783
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:
| 60878 | 82340 | L3HARRIS TECHNOLOGIES, INC. | | 60878-2 | 82340 | L3HARRIS TECHNOLOGIES, INC. | | AB250-225P2-0-2498 | 01351 | SOUTHERN GEAR & MACHINE INC | | AB250-225P2-0-2498 SPCL | 01351 | SOUTHERN GEAR & MACHINE INC | | 60878-2 | 9Y580 | L3HARRIS TECHNOLOGIES, INC. |
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Techincal Specification:
| BACKLASH DESIGNATION | GRADE D | | BORE NOMINAL DIAMETER | 0.250 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 STD SINGLE MATERIAL RESPONSE HUB | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-250/4C FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-225/6B FED SPEC SINGLE MATERIAL RESPONSE BODY | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE SPRING | | MATERIAL | ALUMINUM ALLOY 2024 BODY | | MATERIAL | STEEL COMP 302 SPRING | | MATERIAL | STEEL COMP 303S HUB | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.250 INCHES FIRST END | | NOMINAL OUTSIDE DIAMETER | 3.546 INCHES | | PITCH DIAMETER | 3.5156 INCHES NOMINAL | | PRECISION CLASSIFICATION | QUALITY NUMBER 12 | | 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 DOCUMENT AND CLASSIFICATION | MIL-F-14072,E300 MIL SPEC SINGLE TREATMENT RESPONSE HUB | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-F-14072,E300 MIL SPEC SINGLE TREATMENT RESPONSE SPRING | | SURFACE TREATMENT | ANODIZE BODY | | SURFACE TREATMENT | PASSIVATE HUB | | SURFACE TREATMENT | PASSIVATE SPRING | | TEETH QUANTITY | 225 | | TOOTH FORM | STANDARD |
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