Product Description:

The MSS142D-0700-FA-N0CN-NNLA is a permanent-magnet synchronous motor supplied by Bosch Rexroth Indramat within the MSS Synchronous IndraDyn H Motors series. Intended for machinery that requires compact, high-speed rotary actuation, the unit transforms three-phase electrical energy into mechanical torque for spindles, positioning axes, and automated handling stations. Its design permits direct coupling to the driven shaft, eliminating gear stages and providing precise speed regulation for modern CNC and production equipment.

Its nominal operating point is set at 7000 rpm, where the rotor can deliver a continuous shaft torque of 40.5 Nm. At that speed, the electromagnetic conversion supports a mechanical output of 29.7 kW while drawing a steady phase current of 65 A from the drive. Heat resulting from 2.5 kW of power loss is managed through the machine’s cooling circuit. The stator body measures 160 mm in outer diameter and has a 58 mm through-bore, providing space for hollow-shaft mounting or cable routing. A minimum power cable cross-section of 16 mm² is recommended to keep the conductor temperature within the limits established for the series. Electrical response is influenced by a longitudinal inductance of 0.61 mH, which affects the current rise time during rapid torque commands.

During overload or acceleration events, the motor can withstand a peak torque of 90 Nm when the inverter supplies up to 140 A. The permanent-magnet system has a torque constant of 0.62 Nm/A, allowing the drive to estimate torque directly from the measured phase current. A voltage constant of 46 V/1000 rpm characterizes the back EMF generated at high speed, which must remain within the capacity of the DC bus. Copper losses are governed by a winding resistance of 0.2 Ω, keeping the thermal rise predictable during extended duty cycles. The stator has a mass of 16 kg, providing thermal inertia without adding moving weight to the axis.