- Available with gearheads of GBP30 / GBL35 / GBM37 / GBN50 Series - Armature lnertia : 0.022 kg-cm Motor Weight : 140 grams
- Available with gearheads of GBP30 / GBN50 Series - Armature lnertia : 0.035 kg-cm Motor Weight : 250 grams
- Available with gearheads of GBP30 / GBN50 Series - Armature lnertia : 0.043 kg-cm Motor Weight : 280 grams
- Available with gearheads of GBN50 Series - 7E5475 Armature lnertia : 0.185 kg-cm Motor Weight : 610 grams - 7E54100 Armature lnertia : 0.301 kg-cm Motor Weight : 850 grams