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National Stock Number:
3020-00-917-4977
Federal Supply Class:
3020
National Item Identification Number:
009174977
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:
| 450530-1 | 80249 | BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC. | | AB250-75-1873 | 01351 | SOUTHERN GEAR & MACHINE INC | | P13-3-75 | 00141 | ROLLER BEARING CO OF AMERICA, INC | | Z4E-75-A | 01147 | ARCH GEAR WORKS INC |
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Techincal Specification:
| MATERIAL | ALUMINUM ALLOY 2024 BODY | | STEEL COMP 303SE HUB | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE BODY | | 66,AISI 303SE/SAE 30303SE FED STD SINGLE MATERIAL RESPONSE HUB | | SURFACE TREATMENT | ANODIZE BODY | | PASSIVATE HUB | | TEETH QUANTITY | 75 | | TOOTH FORM | STANDARD | | PRESSURE ANGLE | 20.0000 DEGREES | | PRECISION CLASSIFICATION | QUALITY NUMBER 10 | | BACKLASH DESIGNATION | GRADE C | | STYLE DESIGNATOR | PROTRUDING HUB | | PITCH DIAMETER | 1.1713 INCHES NOMINAL | | NOMINAL OUTSIDE DIAMETER | 1.201 INCHES | | FACE NOMINAL WIDTH | 0.125 INCHES | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.250 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 |
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