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National Stock Number:
3020-00-139-4144
Federal Supply Class:
3020
National Item Identification Number:
001394144
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:
| 709-1100-025 | 07421 | L3HARRIS INTERSTATE ELECTRONICS CORPORATION |
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Techincal Specification:
| MATERIAL | ALUMINUM FIRST GEAR | | ALUMINUM HUB | | STEEL RETAINING RING | | ALUMINUM SECOND GEAR | | SURFACE TREATMENT | ANODIZE FIRST GEAR | | ANODIZE HUB | | ANODIZE SECOND GEAR | | TEETH QUANTITY | 120 | | TOOTH FORM | STANDARD | | PRESSURE ANGLE | 20.0000 DEGREES | | STYLE DESIGNATOR | PROTRUDING HUB | | PITCH DIAMETER | 1.6667 INCHES NOMINAL | | NOMINAL OUTSIDE DIAMETER | 1.694 INCHES | | FACE NOMINAL WIDTH | 0.180 INCHES | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.320 INCHES FIRST END | | BORE STYLE | PLAIN BOTH ENDS | | BORE NOMINAL DIAMETER | 0.188 INCHES BOTH ENDS | | HUB STYLE DESIGNATOR | SPLIT FIRST END | | HUB NOMINAL DIAMETER | 0.250 INCHES FIRST END | | CLAMPING SURFACE NOMINAL LENGTH | 0.250 INCHES FIRST END | | ATTACHMENT METHOD | CLAMP |
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