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National Stock Number:
3020-01-262-1253
Federal Supply Class:
3020
National Item Identification Number:
012621253
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:
| 5787658 | 44114 | BAE SYSTEMS LAND & ARMAMENTS L.P. | | 5787658 | 53711 | NAVAL SEA SYSTEMS COMMAND | | P13-5-180-Q14 | 00141 | ROLLER BEARING CO OF AMERICA, INC | | AP72V-180-Q14 | 29440 | W. M. BERG INC |
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Techincal Specification:
| MATERIAL | ALUMINUM ALLOY BODY | | STEEL COMP 302 SPRING | | STEEL COMP 303 TEETH | | SURFACE TREATMENT | ANODIZE BODY | | PASSIVATE SPRING | | PASSIVATE TEETH | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625 TY 1 MIL SPEC 1ST TREATMENT RESPONSE BODY | | QQ-P-35,TY II FED SPEC 3RD TREATMENT RESPONSE SPRING | | QQ-P-35,TY II FED SPEC 2ND TREATMENT RESPONSE TEETH | | TEETH QUANTITY | 180 | | TOOTH FORM | STANDARD | | PRESSURE ANGLE | 20.0000 DEGREES | | PRECISION CLASSIFICATION | QUALITY NUMBER 14 | | STYLE DESIGNATOR | PROTRUDING HUB | | PITCH DIAMETER | 2.5000 INCHES NOMINAL | | NOMINAL OUTSIDE DIAMETER | 2.528 INCHES | | FACE NOMINAL WIDTH | 0.104 INCHES | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.281 INCHES FIRST END | | BORE STYLE | PLAIN BOTH ENDS | | BORE NOMINAL DIAMETER | 0.187 INCHES BOTH ENDS | | HUB STYLE DESIGNATOR | PINNED FIRST END | | HUB NOMINAL DIAMETER | 0.375 INCHES FIRST END | | SPECIAL FEATURES | HUB HAS ONE STEP 0.031 IN. WIDE |
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