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National Stock Number:
3020-01-086-5919
Federal Supply Class:
3020
National Item Identification Number:
010865919
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:
| P17-3-125C | 00141 | ROLLER BEARING CO OF AMERICA, INC |
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Techincal Specification:
| MATERIAL | STEEL COMP 303 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-764,TYPE 303,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE HUB | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35,TYPE 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | TEETH QUANTITY | 125 | | TOOTH FORM | STANDARD | | PRESSURE ANGLE | 20.0000 DEGREES | | PRECISION CLASSIFICATION | QUALITY NUMBER 10 | | STYLE DESIGNATOR | PROTRUDING HUB | | PITCH DIAMETER | 1.9521 INCHES MINIMUM AND | | 1.9531 INCHES MAXIMUM | | NOMINAL OUTSIDE DIAMETER | 1.9840 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 | 0.250 INCHES BOTH ENDS | | HUB STYLE DESIGNATOR | 1 STEP FIRST END | | END NOMINAL LENGTH | 0.250 INCHES FIRST END | | END NOMINAL DIAMETER | 0.312 INCHES FIRST END | | FIRST STEP NOMINAL LENGTH | 0.031 INCHES FIRST END | | FIRST STEP NOMINAL DIAMETER | 0.375 INCHES FIRST END | | ATTACHMENT METHOD | CLAMP |
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