Overview
The Rexroth KSM02.1B-061C-35N-M1-HP0-ET-L3-D7-NN-FW is a motor-integrated servo drive from Bosch Rexroth’s IndraDrive KSM series. This unit merges motion control and electronics into a single compact unit, eliminating the need for separate external drives. The integrated design reduces cabinet footprint, simplifies commissioning, and delivers high-precision performance for industrial automation and motion control applications.
Key Features
- Motor and servo drive integrated in single package for space-efficient installation
- 4300 RPM maximum speed with 25 Nm maximum torque output
- Optical multi-turn absolute Hiperface encoder with 128 signal periods for precise position feedback
- Multi-Ethernet master communication for seamless network integration
- Natural convection cooling—no external fans required
- Hybrid connector interface for streamlined wiring and connectivity
- DC 750 V supply voltage with safe torque-off (STO) functionality
Technical Specifications
- Series: KSM02.1B (KSM Motor Integrated Servo Drives)
- Manufacturer Part Number: R911335801 | KSM02.1B-061C-35N-M1-HP0-ET-L3-D7-NN-FW
- Motor Size: 061
- Maximum Speed: 4300 RPM
- Standstill Torque: 6 Nm
- Maximum Torque: 25 Nm
- Standstill Current: 3.3 A
- Maximum Current: 14.9 A
- Supply Voltage: DC 750 V
- Encoder Type: Optical multi-turn absolute Hiperface (128 increments)
- Communication: Multi-Ethernet
- Cooling: Natural convection (no fans)
- Connector: Hybrid electrical connector
- Shaft: Plain shaft with keyway per DIN 6885-1; shaft sealing ring included
- Holding Brake: Not equipped
- Dimensions: 271 mm (length) × 219 mm (height); motor diameter 95 mm; shaft diameter 19 mm
- Weight: 9.6 kg
- Operating Temperature: 0 to 40°C ambient
- Installation Altitude: Not to exceed 1000 m above sea level
- Protection Class: IP65 (sealed against dust and low-pressure water jets)
- Winding: 35 N
- Performance Level: Basic
- Design Version: 1
Typical Applications
The KSM02.1B servo motor is ideal for manufacturing machinery, automotive production lines, aerospace systems, food processing equipment, and other industrial automation requiring precise speed and torque control. The integrated motor-drive design works well in compact machine cabinets where space is constrained. Common uses include:
- Conveyor and material handling systems
- Positioning tables and indexing applications
- Assembly machine actuators
- Print and label machinery
- Packaging equipment
- Test stand automation
Compatibility & Replacements
Compatible With
- Bosch Rexroth IndraDrive Mi control systems
- KMV03 power supply units (Rexroth)
- Industrial Ethernet networks
- Multi-Ethernet master controllers
- SERCOS 2 communication protocols
- Hybrid cable assemblies (RKH series)
Replaces / Drop-In Replacement For
The KSM02.1B-061C-35N-M1-HP0-ET-L3-D7-NN-FW is part of a specific motor series. Verify compatibility with your system integrator before ordering if considering a replacement for an alternative model. Close variants exist with different hold-brake configurations (HP0, HP2, HG0) and different encoder types (L3 vs. NN)—consult manufacturer documentation to confirm direct interchangeability.
Works With
- Bosch Rexroth Automation Studio (commissioning and programming)
- IndraDrive Mi firmware and project planning tools
- Multi-Ethernet master communication interfaces
- RKH hybrid cable assemblies (must be ordered separately)
- Safe Torque Off (STO) integrated safety function
- Oscilloscope and diagnostic functions within IndraDrive Mi controllers








