Product Description:

The ADF104C-B05TA1-BS07-D2N2 spindle motor is produced by Bosch Rexroth Indramat within the ADF Main Spindle Motors series. It is a liquid-cooled asynchronous main spindle unit used to drive machining centers, turning equipment, and similar automation where continuous torque and smooth speed control are required. Installed as the rotating element of a machine spindle, it converts electrical energy into mechanical power for metal cutting and forming. It is intended for spindle duties that need repeatable rotation quality during cutting, drilling, milling, and similar processes.

The motor has size 104 and length C, giving it a frame format that suits machines built around this mounting envelope. That combination gives the motor the installation depth and thermal mass expected for this housing class during sustained spindle work. The flange mounting interface places the housing directly against the machine structure, while the power leads exit on Side A through a top-mounted connector housing to keep cable routing compact. Its liquid-cooled asynchronous design circulates coolant through internal channels instead of relying on surface airflow, which helps maintain stable temperature during continuous operation. Motion information is provided through digital servo feedback, allowing the drive to monitor rotor position and support controlled speed changes. Standard bearings and a standard coolant connector are used for a straightforward mechanical layout.

Vibration performance meets class S DIN ISO 2373, which is suited to spindle operation at elevated rotational speeds. The output uses a shaft with keyway, and a fitted shaft seal ring helps keep coolant and debris away from the bearing area. The motor is supplied without a holding brake, so stopping and holding torque must come from the inverter or external machine hardware. This arrangement is common where braking is handled electrically by the spindle drive. It is built without a second shaft end on Side B, and the BS winding code identifies the electrical winding used in this version.