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National Stock Number:
3020-00-136-2020
Federal Supply Class:
3020
National Item Identification Number:
001362020
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:
| ABC45-180 | 23266 | SECS, INC. | | Z7F180A | 00328 | DESIGNATRONICS INCORPORATED |
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Techincal Specification:
| ATTACHMENT METHOD | CLAMP | | BORE NOMINAL DIAMETER | 0.250 INCHES BOTH ENDS | | BORE STYLE | PLAIN BOTH ENDS | | CLAMPING SURFACE NOMINAL LENGTH | 0.190 INCHES FIRST END | | FACE NOMINAL WIDTH | 0.104 INCHES | | HUB NOMINAL DIAMETER | 0.312 INCHES FIRST END | | HUB STYLE DESIGNATOR | SPLIT FIRST END | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763,CLASS 303,COND A FED SPEC SINGLE MATERIAL RESPONSE HUB | | MATERIAL | ALUMINUM ALLOY 2024 BODY | | MATERIAL | STEEL COMP 303 HUB | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.221 INCHES FIRST END | | NOMINAL OUTSIDE DIAMETER | 2.526 INCHES | | PITCH DIAMETER | 2.4990 INCHES MINIMUM AND 2.5000 INCHES MAXIMUM | | PRESSURE ANGLE | 20.0000 DEGREES | | STYLE DESIGNATOR | PROTRUDING HUB | | SURFACE TREATMENT | ANODIZE BODY | | SURFACE TREATMENT | PASSIVATE HUB | | TEETH QUANTITY | 180 | | TOOTH FORM | STANDARD |
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