| Specification | Max.Load(kgs) | Safety Load(kgs) |
| WS-68 φ17mm d Thread P:10mm | 20090 | 10000 |
| WS-68φ17mm Ball Screw 4 TPI | 18800 | 9400 |
| WS-68B φ23mm d Thread P:10mm | 32000 | 16000 |
| WS-68H φ17mm d Thread P:10mm | 19500 | 9700 |
| WS-68H φ23mm d Thread P:10mm | 32000 | 16000 |
| WS-68Rφ17mm d Thread P:10mm | 20220 | 10100 |
| WS-68S φ17mm Ball Screw 6 TPI | 5265 | 2600 |
