NSN 3020-01-128-4681
Part Details | HELICAL ANTIBACKLASH GEAR
3020-01-128-4681 An item having one fixed gear and one free gear, both having the same complement of helical 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.
Alternate Parts: 42735P2, 42735, 3020-01-128-4681, 01-128-4681, 3020011284681, 011284681
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 30 | MAR 21, 1982 | 01-128-4681 | 26667 ( GEAR, ANTIBACKLASH, HELICAL ) |
REFERENCE DRAWINGS & PICTURES
PROTRUDING HUBS
Cross Reference | NSN 3020-01-128-4681
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 42735P2 | 25734 | BOSCH SECURITY SYSTEMS, INC.DIV COMMUNICATIONS DIVISION |
| 42735 | 25734 | BOSCH SECURITY SYSTEMS, INC.DIV COMMUNICATIONS DIVISION |
Technical Data | NSN 3020-01-128-4681
| Characteristic | Specifications |
|---|---|
| TEETH QUANTITY | 15 |
| TEETH TYPE | SINGLE HELIX |
| TOOTH FORM | STANDARD |
| TOOTH DIRECTION | LEFT |
| PRESSURE ANGLE | 20.0000 DEGREES |
| HELIX ANGLE | 9.0000 DEGREES |
| PRECISION CLASSIFICATION | Q$R |
| STYLE DESIGNATOR | PROTRUDING HUBS |
| PITCH DIAMETER | 0.4746 INCHES NOMINAL |
| NOMINAL OUTSIDE DIAMETER | 0.523 INCHES |
| FACE NOMINAL WIDTH | 0.405 INCHES |
| ATTACHMENT METHOD | MOUNTING HOLE |