MRS162F-2N-0060-NNNN Bosch Rexroth Indramat
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The Bosch Rexroth Indramat MRS162F-2N-0060-NNNN is part of the MRS Synchronous IndraDyn H Motors series. This motor features a rated torque of 90 Nm and a rated speed of 3100 min^-1, with a maximum speed of 15500 min^-1. It has a rated current of 64 A, rotor mass of 12.4 kg, and uses a step interference fit mounting style with a 60 x 4 mm 75FKM O-ring.
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Product Description:
The MRS162F-2N-0060-NNNN is a synchronous servo motor built by Bosch Rexroth Indramat and supplied within the MRS Synchronous IndraDyn H Motors series. Designed for high-performance machine tools and production lines, the unit converts drive current into controlled rotary motion that can be synchronized closely with CNC or PLC commands. Its construction combines a permanent-magnet rotor with stator windings arranged for rapid acceleration and repeatable torque delivery. This layout suits spindles, printing cylinders, and packaging axes that require stable motion during frequent speed changes. Its compact format also supports installations where high output must be combined with accurate speed control in limited machine space.
Under continuous load, the motor delivers a rated torque of 90 Nm at a rated speed of 3100 rpm, while drawing a rated phase current of 64 A. These values describe its steady-duty operating point and help match the motor to an appropriate inverter for regular production use. With four pole pairs, the electromagnetic field switches eight times per mechanical revolution, which supports smooth low-speed behavior and predictable commutation. A torque constant of 1.41 Nm/A links commanded current to shaft torque, and a back-EMF constant of 110 V/1000 rpm shows how much opposing voltage the windings generate during rotation. These electrical characteristics help the controller regulate output across changing load conditions.
For intermittent peaks, the rotor can spin up to 15500 rpm, and the low rotor inertia of 0.024 kg·m² allows fast speed changes without excessive drive demand. The magnetic circuit has a direct-axis inductance of 1.1 mH and a quadrature-axis inductance of 3.45 mH, which the controller uses for field-oriented current calculation. The motor uses a step interference fit mounting style, a 60 mm inner rotor bore, and a rotor mass of 12.4 kg. A 60 × 4 mm O-ring made from 75 FKM seals the fit against coolant ingress, and a winding resistance of 0.23 ohms contributes to copper loss during continuous operation. This sealing arrangement helps protect the fit area where the rotor assembly is installed.
