Description
Bosch Rexroth MHD115C-058-PG1-BA
Technical Specifications Frame size 115, length class C; liquid cooling structure; high-resolution built-in encoder feedback; rated 400V three-phase winding; plain output shaft without keyway; flange mounting form; IP65 protection rating; operating speed range 0 to 3000 rpm; continuous stall torque 70 Nm.
Functional Features High continuous torque output for heavy inertial loads; liquid cooling design sustains full rated torque in long cycle operation; high precision encoder provides real-time speed and rotor position feedback; low torque ripple ensures smooth rotation at low speed; robust mechanical structure withstands continuous cyclic shock load; overload capacity handles short peak torque demand; electrical insulation meets industrial drive standard.
Application Scenarios Heavy-duty CNC machine tool main spindle and feed axis; large gantry handling system; metal forming press automation axis; heavy palletizing robot joint; large printing and converting machinery main drive.
Performance Parameters Operating ambient temperature -20℃ to +40℃; storage temperature -40℃ to +85℃; relative humidity 5% to 90%, no condensation; vibration resistance conforms to IEC 60068; positioning feedback resolution matches Indramat drive control requirement.
Material Composition Aluminum alloy motor housing; laminated silicon steel stator core; high-performance rare-earth permanent magnet rotor; insulated copper stator winding; nickel-plated stainless steel output shaft; polyurethane sealing lip rings; liquid cooling channel inside housing; metal encoder housing.
Structural Characteristics Cylindrical motor body with standard front mounting flange; rear-end integrated encoder assembly; internal liquid cooling flow channel machined within motor housing; power and feedback signal connectors installed on side terminal box; double lip sealing rings at shaft outlet to prevent dust and liquid ingress.
Working Principle Three-phase variable frequency alternating current from Rexroth servo drive flows into stator winding and generates rotating magnetic field. Magnetic field interacts with permanent magnet rotor and produces continuous rotary torque to drive output shaft rotation. The built-in encoder captures rotor angle and speed data and sends feedback signal back to servo drive, forming closed-loop speed and position control. Liquid cooling medium circulates inside the motor housing and removes heat generated by stator winding.
Installation Requirements Mount motor flange rigidly to machine frame surface. Align coupling assembly carefully to eliminate radial and axial misalignment. Connect shielded power cable and encoder feedback cable separately. Install liquid cooling pipeline and complete leakage test before commissioning. Tighten cable gland to preserve IP65 sealing performance. Configure motor parameter data in matched Rexroth servo drive after power-on.
Usage Notes Prevent radial overload force applied directly on motor output shaft. Maintain cooling liquid flow rate and liquid quality continuously during operation. Check shaft sealing rings periodically to detect liquid leakage. Avoid disassembling encoder assembly without professional calibration tools. Keep terminal box free of metal dust and conductive contaminants.
