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National Stock Number:
3020-00-088-1887
Federal Supply Class:
3020
National Item Identification Number:
000881887
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:
| 6800-3005 | 11871 | RECON/OPTICAL, INC. | | 6800-3005 | 80294 | BOURNS INSTRUMENTS INC |
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Techincal Specification:
| BACKLASH DESIGNATION | GRADE B | | BORE STYLE | PLAIN BOTH ENDS | | BORE NOMINAL DIAMETER | 0.125 INCHES BOTH ENDS | | FACE NOMINAL WIDTH | 0.092 INCHES | | FIRST GROOVE NOMINAL DIAMETER | 0.230 INCHES SECOND END | | FIRST GROOVE NOMINAL WIDTH | 0.031 INCHES SECOND END | | HUB NOMINAL DIAMETER | 0.250 INCHES SECOND END | | HUB NOMINAL DIAMETER | 0.343 INCHES FIRST END | | HUB STYLE DESIGNATOR | 1 GROOVE SECOND END | | HUB STYLE DESIGNATOR | PINNED FIRST END | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-764,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 303 OVERALL | | NOMINAL DISTANCE FROM END TO FIRST GROOVE | 0.047 INCHES SECOND END | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.079 INCHES SECOND END | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.313 INCHES FIRST END | | NOMINAL OUTSIDE DIAMETER | 0.969 INCHES | | PITCH DIAMETER | 0.9375 INCHES NOMINAL | | PRECISION CLASSIFICATION | QUALITY NUMBER 10 | | PRESSURE ANGLE | 20.0000 DEGREES | | STYLE DESIGNATOR | PROTRUDING HUBS | | SURFACE TREATMENT | PASSIVATE OVERALL | | TEETH QUANTITY | 60 | | TOOTH FORM | STANDARD |
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