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National Stock Number:
3020-00-943-4620
Federal Supply Class:
3020
National Item Identification Number:
009434620
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:
| 714499-047 | 05869 | RAYTHEON COMPANY | | P7-4-72 | 00141 | ROLLER BEARING CO OF AMERICA, INC |
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Techincal Specification:
| MATERIAL | STEEL COMP 303S OR | | STEEL COMP 303SE OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-7720 MIL SPEC ALL MATERIAL RESPONSES OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | TEETH QUANTITY | 72 | | TOOTH FORM | STANDARD | | PRESSURE ANGLE | 20.0000 DEGREES | | PRECISION CLASSIFICATION | QUALITY NUMBER 10 | | STYLE DESIGNATOR | PROTRUDING HUBS | | PITCH DIAMETER | 2.2500 INCHES NOMINAL | | NOMINAL OUTSIDE DIAMETER | 2.312 INCHES | | FACE NOMINAL WIDTH | 0.180 INCHES | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.240 INCHES FIRST END | | 0.189 INCHES SECOND END | | BORE STYLE | PLAIN BOTH ENDS | | BORE NOMINAL DIAMETER | 0.250 INCHES BOTH ENDS | | HUB STYLE DESIGNATOR | PINNED FIRST END | | THREADED SECOND END | | HUB NOMINAL DIAMETER | 0.500 INCHES FIRST END |
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