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National Stock Number:
3020-00-853-5906
Federal Supply Class:
3020
National Item Identification Number:
008535906
Description:
GEAR,ANTIBACKLASH,WORM WHEEL
Detail:
AN ITEM HAVING ONE FIXED GEAR AND ONE FREE GEAR, BOTH HAVING THE SAME COMPLEMENT OF WORM WHEEL 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:
| 619A597H01 | 97942 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | A40698-1 | 42498 | DAR ELECTRONICS INC DBA NATIONAL RADIO CO | | S9736A-WF08-SP | 00328 | DESIGNATRONICS INCORPORATED | | WF8S | 00328 | DESIGNATRONICS INCORPORATED |
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Techincal Specification:
| ATTACHMENT METHOD | CLAMP | | BORE STYLE | PLAIN BOTH ENDS | | BORE NOMINAL DIAMETER | 0.250 INCHES BOTH ENDS | | CLAMPING SURFACE NOMINAL LENGTH | 0.187 INCHES FIRST END | | FACE NOMINAL WIDTH | 0.187 INCHES | | FACE TYPE | CONCAVE | | HELIX ANGLE | 3.5736 DEGREES | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-637,COMP 1 FED SPEC SINGLE MATERIAL RESPONSE FIRST GEAR | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-637,COMP 1 FED SPEC SINGLE MATERIAL RESPONSE SECOND GEAR | | MATING THREAD LEAD QUANTITY | 2 | | HUB NOMINAL DIAMETER | 0.312 INCHES FIRST END | | HUB STYLE DESIGNATOR | SPLIT FIRST END | | III MATERIAL | COPPER ALLOY FIRST GEAR | | III MATERIAL | COPPER ALLOY SECOND GEAR | | III MATERIAL | STEEL COMP 303 HUB | | III MATERIAL | STEEL COMP 303 SPRING | | PITCH DIAMETER | 1.5625 INCHES NOMINAL | | PRESSURE ANGLE | 14.5000 DEGREES | | PROPRIETARY CHARACTERISTICS | PACS | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.215 INCHES FIRST END | | NOMINAL OUTSIDE DIAMETER | 1.6150 INCHES | | STYLE DESIGNATOR | PROTRUDING HUB | | SURFACE TREATMENT | PASSIVATE HUB | | TEETH QUANTITY | 100 | | THROAT NOMINAL RADIUS | 0.250 INCHES | | TOOTH DIRECTION | RIGHT |
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