NSN 3020-01-025-0489
Part Details | WORM WHEEL ANTIBACKLASH GEAR
3020-01-025-0489 An item having one fixed gear and one free gear, both having the same complement of worm wheel 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: 4256A424, 4256A404PC3, Q1335SPECIAL, Q13-35SPECIAL, 3020-01-025-0489, 01-025-0489, 3020010250489, 010250489
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 30 | JUL 24, 1976 | 01-025-0489 | 26669 ( GEAR, ANTIBACKLASH, WORM WHEEL ) |
REFERENCE DRAWINGS & PICTURES
PROTRUDING HUB
Cross Reference | NSN 3020-01-025-0489
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 4256A424 | 23905 | L-3 COMMUNICATIONS WESTWOODCORPORATION |
| 4256A404PC3 | 23905 | L-3 COMMUNICATIONS WESTWOODCORPORATION |
| Q13-35SPECIAL | 00141 | ROLLER BEARING COMPANY OF AMERICA,INC. |
Technical Data | NSN 3020-01-025-0489
| Characteristic | Specifications |
|---|---|
| TEETH QUANTITY | 93 |
| TOOTH DIRECTION | RIGHT |
| FACE TYPE | CONCAVE |
| MATING THREAD LEAD QUANTITY | 2 |
| PRESSURE ANGLE | 14.5000 DEGREES |
| HELIX ANGLE | 3.5625 DEGREES |
| STYLE DESIGNATOR | PROTRUDING HUB |
| PITCH DIAMETER | 1.4526 INCHES NOMINAL |
| NOMINAL OUTSIDE DIAMETER | 1.484 INCHES |
| FACE NOMINAL WIDTH | 0.188 INCHES |
| ATTACHMENT METHOD | CLAMP |