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National Stock Number:
3020-00-938-4450
Federal Supply Class:
3020
National Item Identification Number:
009384450
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:
| 658697 | 06481 | NORTHROP GRUMMAN SYSTEMS CORPORATION |
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Techincal Specification:
| ATTACHMENT METHOD | MOUNTING HOLE | | BORE NOMINAL DIAMETER | 0.120 INCHES BOTH ENDS | | BORE STYLE | PLAIN BOTH ENDS | | CLAMPING SURFACE NOMINAL LENGTH | 0.140 INCHES FIRST END | | FACE NOMINAL WIDTH | 0.101 INCHES | | HUB STYLE DESIGNATOR | PLAIN SECOND END | | HUB STYLE DESIGNATOR | SPLIT FIRST END | | HUB NOMINAL DIAMETER | 0.145 INCHES BOTH ENDS | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/8,T651 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | ALUMINUM ALLOY 6061 OVERALL | | MOUNTING HOLE NOMINAL DIAMETER | 0.046 INCHES TRANSVERSELY THROUGH HUB, FIRST END | | MOUNTING HOLE TYPE AND QUANTITY | 2 COUNTERSUNK AND 1 PLAIN TRANSVERSELY THROUGH HUB, FIRST END | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.030 INCHES SECOND END | | NOMINAL OUTSIDE DIAMETER | 1.140 INCHES | | NOMINAL OVERALL LENGTH | 0.315 INCHES | | PITCH DIAMETER | 1.1250 INCHES NOMINAL | | PRESSURE ANGLE | 20.0000 DEGREES | | STYLE DESIGNATOR | PERIPHERAL FACE, HUBLESS | | TEETH QUANTITY | 270 | | TOOTH FORM | STANDARD |
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