| special spec.no. | spec.no. | ||
| type of port | standard port | ||
| type of shaft | c : metric keyed shaft | ||
| displacement | 300 : 300 (cm3/rev) | ||
| motors | mb gear motor |
| special spec. | nothing | ||
| brake torque | 150 : 1470n-m (mb300b,mb350b) | ||
| design no. | b : 2nd design change | ||
| product | mb : me motor with mechanical brake series |
