Comptrol preloaded and non-preloaded ballnut assemblies are available in over 200 models in:
Base, Flange, Cut-off Flange, or Trunnion mounting configurations to accommodate a wide range of rolled thread and precision ground ballscrews.
Custom mounting configurations are also available to meet your design requirements.
Base Mount
Flange Mount
Cut-Off Flange Mount
Trunnion Mount
Please click on a title below for further information and Mounting Configuration.
Preloaded Ballnut Assemblies
Preloaded Ballnut Assemblies
Comptrol preloaded ballnuts offer:
- Performance normally expected from a precision ground screw
- A substantially lower price
The unique design of Comptrol's preloaded double nut assemblies allows the load to be attached to the center of the assembly. Centering the load between two opposing preloaded ballnuts eliminates backlash resulting in truer bi-directional positioning accuracy and repeatability, a more uniform preload, and low friction drag for optimum power transmission efficiency. The factory set preload adapter allows the preload to be set at up to 30% of the applied load for the selected ballscrew. Once set, the preload remains constant throughout the life of the screw.
Mounting Configuration
| Ballscrew Ø (in) | Flange | Cut-Off Flange | Base | Trunion |
|---|---|---|---|---|
| 0.625 | 65-1-204 | 65-1-304 | 65-1-404 | 65-1-504 |
| 65-1-205 | 65-1-305 | 65-1-405 | 65-1-505 | |
| 0.750 | 65-1-206 | 65-1-306 | 65-1-406 | 65-1-506 |
| 65-1-207 | 65-1-307 | 65-1-407 | 65-1-507 | |
| 1.000 | 65-1-208 | 65-1-308 | 65-1-408 | 65-1-508 |
| 65-1-209 | 65-1-309 | 65-1-409 | 65-1-509 | |
| 65-1-210 | 65-1-310 | 65-1-410 | 65-1-510 | |
| 65-1-211 | 65-1-311 | 65-1-411 | 65-1-511 | |
| 65-1-212 | 65-1-312 | 65-1-412 | 65-1-512 | |
| 1.1500 | 65-1-213 | 65-1-313 | 65-1-413 | 65-1-513 |
| 1.500 | 65-1-214 | 65-1-314 | 65-1-414 | 65-1-514 |
| 65-1-215 | 65-1-315 | 65-1-415 | 65-1-515 | |
| 65-1-216 | 65-1-316 | 65-1-416 | 65-1-516 | |
| 65-1-226 | 65-1-326 | 65-1-426 | 65-1-526 | |
| 2.000 | 65-1-217 | 65-1-317 | 65-1-417 | 65-1-517 |
| 65-1-218 | 65-1-318 | 65-1-418 | 65-1-518 | |
| 65-1-219 | 65-1-319 | 65-1-419 | 65-1-519 | |
| 2.250 | 65-1-220 | 65-1-320 | 65-1-420 | 65-1-520 |
| 2.500 | 65-1-221 | 65-1-321 | 65-1-421 | 65-1-521 |
| 65-1-222 | 65-1-322 | 65-1-422 | 65-1-522 | |
| 3.000 | 65-1-223 | 65-1-323 | 65-1-423 | 65-1-523 |