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National Stock Number:
3020-01-256-3693
Federal Supply Class:
3020
National Item Identification Number:
012563693
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:
| P4-1-192-Q12-C.2406B | 00141 | ROLLER BEARING CO OF AMERICA, INC |
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Techincal Specification:
| PRESSURE ANGLE | 20.0000 DEGREES | | PRECISION CLASSIFICATION | QUALITY NUMBER 12 | | STYLE DESIGNATOR | PROTRUDING HUBS | | PITCH DIAMETER | 4.0000 INCHES NOMINAL | | NOMINAL OUTSIDE DIAMETER | 4.042 INCHES | | FACE NOMINAL WIDTH | 0.104 INCHES | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.281 INCHES FIRST END | | 0.224 INCHES SECOND END | | BORE STYLE | PLAIN BOTH ENDS | | BORE NOMINAL DIAMETER | 0.2406 INCHES BOTH ENDS | | HUB STYLE DESIGNATOR | SPLIT FIRST END | | THREADED SECOND END | | HUB NOMINAL DIAMETER | 0.312 INCHES FIRST END | | CLAMPING SURFACE NOMINAL LENGTH | 0.250 INCHES FIRST END | | ATTACHMENT METHOD | CLAMP | | MATERIAL | ALUMINUM ALLOY 2024 BODY | | STEEL CORROSION RESISTING HUB | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE BODY | | MIL-S-862 MIL SPEC SINGLE MATERIAL RESPONSE HUB | | SURFACE TREATMENT | ANODIZE BODY | | PASSIVATE HUB | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625,TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE BODY | | QQ-P-35,TYPE II FED SPEC SINGLE TREATMENT RESPONSE HUB | | TEETH QUANTITY | 192 | | TOOTH FORM | STANDARD |
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