| Model No. | Rail length L (±0.8) | Stroke S (±3) | Permissible load N/pair | 
| mm | mm | ||
| 254 | 280 | 290 | |
| 305 | 330 | 290 | |
| 356 | 381 | 280 | |
| 406 | 432 | 270 | |
| 457 | 483 | 250 | |
| 508 | 533 | 240 | 
