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National Stock Number:
3020-00-907-3438
Federal Supply Class:
3020
National Item Identification Number:
009073438
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:
| AB250-91-250SS | 01351 | SOUTHERN GEAR & MACHINE INC |
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Techincal Specification:
| MATERIAL | STEEL COMP 303S OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-7720,COMP 303S MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | TEETH QUANTITY | 91 | | TOOTH FORM | STANDARD | | PRESSURE ANGLE | 20.0000 DEGREES | | STYLE DESIGNATOR | PROTRUDING HUB | | PITCH DIAMETER | 1.4220 INCHES NOMINAL | | NOMINAL OVERALL LENGTH | 0.375 INCHES | | NOMINAL OUTSIDE DIAMETER | 1.4530 INCHES | | FACE NOMINAL WIDTH | 0.125 INCHES | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.250 INCHES FIRST END | | BORE NOMINAL DIAMETER | 0.250 INCHES BOTH ENDS | | HUB NOMINAL DIAMETER | 0.375 INCHES FIRST END | | ATTACHMENT METHOD | MOUNTING HOLE | | MOUNTING HOLE TYPE AND QUANTITY | 1 THREADED TRANSVERSELY THROUGH HUB, FIRST END | | SPECIAL FEATURES | 1RETAINER,1 SETSCREW,2 SPRINGS | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 01351 | | DESIGN CONTROL REFERENCE | AB250-91-250SS |
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