The Bosch Rexroth Indramat MKD041B-144-FG1-KN is a high-precision servo motor in the MKD Synchronous Motors series, designed to deliver dynamic motion control with robust resolver feedback. Manufactured by Bosch Rexroth Indramat, this product type features a peak torque of 14.1 Nm and a rated torque of 3.5 Nm, providing reliable output across a broad range of applications. The motor operates within an ambient temperature of 0°C to 40°C, ensuring stable performance in standard industrial environments. With an IP65 protection class and natural convection cooling, the MKD041B-144-FG1-KN resists dust and moisture ingress for maintenance-free operation. This model is ideally suited for precision automation tasks where accuracy and durability are critical.
Detailed technical specifications underline the motor’s versatility. The MKD041B-144-FG1-KN employs a resolver feedback system for high-resolution position sensing and features a plain shaft with shaft seal rings. The unit includes a holding brake with a brake torque of 2.2 Nm at 0.34 A, enabling secure stopping. The continuous torque at standstill of 2.7 Nm and motor length code B reflect its compact yet powerful design. A 50 mm centering diameter and IM B5 flange mounting ensure straightforward integration, while the connection box supports a standard power connection. The winding code 144 indicates optimized coil configuration for repeatability and low electrical noise.
Operational performance is optimized for demanding cycles. The motor achieves a maximum speed of 7500 rpm under peak conditions with a corresponding peak current of 34 A. It delivers continuous power of 0.55 kW at 3000 rpm and 0.88 kW at 4500 rpm, meeting diverse torque-speed requirements. Natural convection cooling removes heat without additional fans, keeping the housing temperature rise within safe limits. Weighing just 4.4 kg, the MKD041B-144-FG1-KN offers an excellent power-to-weight ratio for agile motion systems. Continuous torque generation is supported even with a 60 K rise in housing and a 100 K rise in winding temperature.
System integration is facilitated via the built-in resolver feedback interface and standard electrical connections through the B-side junction box. The motor accepts 115–170 V input at 150–225 Hz when paired with compatible drive controllers. This flexibility suits a wide range of automated equipment in machine tools, paper processing, food packaging, and material handling systems. The precision, environmental resilience, and integrated brake functions make the MKD041B-144-FG1-KN an ideal component for next-generation industrial automation solutions.
Shaft Design
Plain shaft
Shaft Seal
Yes
Holding Brake
With holding brake
Holding Brake Torque
2.2 Nm
Other Designs
None
Continuous Torque at Standstill
2.7 Nm
Motor Length
B
Centering diameter
50 mm
Connection Type
Connection box
Product type
Servo Motor
Winding Code
144
Feedback
Resolver
Protection Class
IP65
Mounting
IM B5 (Flange mounting)
Motor Feedback
Resolver feedback
Rated Torque
3.5 Nm
Power Connection
Standard