Description
- Continuous torque at standstill 60 K (M0_60): 50.0 Nm
- Continuous current at standstill 60 K (I0_60): Approx. 22–25 A (from series patterns)
- Continuous torque at standstill 100 K (M0_100): 57.0 Nm
- Continuous current at standstill 100 K (I0_100): 34.9 A
- Continuous torque at standstill surface cooled (M0_S): Higher than 100 K (application-specific; verify)
- Maximum torque (Mmax): 160.0 Nm
- Maximum current (Imax): 137.7 A
- Torque constant at 20 °C (KM_N): Approx. 1.8–2.0 Nm/A (derived from winding data)
- Voltage constant at 20 °C (KEMK_1000): Approx. 110–130 V/1000 min⁻¹ (winding typical)
- Winding resistance at 20 °C (R12): Approx. 0.4–0.6 Ω (large size)
- Winding inductance (L12): Approx. 5.000–7.000 mH
- Moment of inertia rotor (Jrot): 0.00932 kg·m²
- Holding brake torque: Higher than standard 23 Nm (G2 variant; confirm exact with OEM)
- Maximum speed (nmax): 4600 min⁻¹
- Degree of protection: IP65
- Thermal time constant (Tth): Approx. 40–50 min
- Mass: Approx. 50–60 kg (with brake)
- Ambient temperature operation: 0 … 40 °C
- Encoder: Multi-turn hiperface (M1), 128 signal periods
- Shaft: Plain with shaft sealing ring (R variant, keyed)
- Holding brake: Electrically released (G2)
(Values from Bosch Rexroth project planning manual R911296289 for MSK101D-0300-NN winding and supplier data; verify with latest OEM datasheet before final design.)
Product Introduction
The Bosch Rexroth MSK101D-0300-NN-M1-RG2-NNNN is a permanent magnet synchronous servo motor in the IndraDyn S series. It delivers high continuous torque for heavy automation in large CNC machines, robotics, printing presses, packaging systems, and material handling when paired with IndraDrive drives.
It features a multi-turn hiperface encoder for absolute positioning over multiple revolutions, natural convection cooling, keyed plain shaft with sealing ring, and holding brake. This configuration supports 400–480 V supplies, provides IP65 protection, and suits vertical or load-holding axes in large-frame applications requiring brake retention and keyed coupling for torque transmission.

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