拥有60毫米中空轴感应式交流伺服电机的BSM系列，用户可以将通过中空管道穿过电线或其他设备。该系列的功率范围包括从1千瓦到11kW。 如果用户希望更大的中空轴，我们的大容量直 接驱动交流伺服电机可以满足要求。   Motor specification Item Unit Type BSM-102-20ST BSM-202-20ST BSM-302-20ST BSM-402-20ST Rated output kW 1.0 2.0 3.0 4.0 Number of poles P 8 8 8 8 Rated torque N・m (kgf・m) 4.81 (0.49) 9.51 (0.97) 14.32 (1.46) 19.12 (1.95) Rated speed rpm 2000 2000 2000 2000 Rated current A 11.5 24 32 46 Instantaneous max. torque N・m (kgf・m) 9.61 (0.98) 19.02 (1.94) 28.64 (2.92) 36.28 (3.70) Excitation current A 9 19 25 33 Power rate kW/s 1.68 4.19 9.49 14.3 Angular accel rad/s² 350 440 663 750 Rotor inertia kgf・ms² 0.00140 0.0022 0.0022 0.0026 Rotor GD2 kgf・m² 0.055 0.085 0.085 0.101 Cooling method --- 空冷自冷 Load factor %ED 25 25 25 25 Weight kg 30 36 36 41 Applicable controller NCS-FI -122 -242 -402 -752 Applicable driver NPS-FI -122 -242 -402 -752 （Declared speed：2000rpm）   Item Unit Type BSM-552-20ST BSM-752-20ST BSM-113-20ST BSM-102-30ST Rated output kW 5.5 7.5 11 1 Number of poles P 8 8 8 6 Rated torque N・m (kgf・m) 26.28 (2.68) 35.79 (3.65) 52.49 (5.35) 3.14 (0.32) Rated speed rpm 2000 2000 2000 3000 Rated current A 51 71 82 6.5 Instantaneous max. torque N・m (kgf・m) 52.56 (5.36) 71.59 (7.30) 104.99 (10.70) 6.28 (0.64) Excitation current A 42 51 49 3.3 Power rate kW/s 18.5 28.4 28.3 1.8 Angular accel rad/s² 705 795 540 571 Rotor inertia kgf・ms² 0.0038 0.00459 0.00997 0.00056 Rotor GD2 kgf・m² 0.149 0.180 1.391 0.022 Cooling method --- 空冷自冷 空冷自冷 Load factor %ED 25 25 25 100 Weight kg 55 68 85 30 Applicable controller NCS-FI -752 -113 -153 -801 *1 Applicable driver NPS-FI -752 -113 -153 -801 *1 （Declared speed：2000rpm） （3000rpm）