MKD090B-058-KP1-KS
MKD Synchronous Motors
The MKD090B-058-KP1-KS is a three-phase servo motor produced by Bosch Rexroth Indramat within the MKD Synchronous Motors series. Designed for closed-loop drive systems, it converts drive current into calibrated torque and speed for positioning tables, packaging heads, or pick-and-place axes. The unit belongs to the manufacturer’s medium frame class, delivering continuous torque at standstill while maintaining compact overall length, so machine designers can place the motor directly on moving axes without external gear reductions or additional couplings.
The mechanical interface starts with a centering diameter of 110 mm, paired with a square flange that measures 140 mm across to align the motor precisely to gearboxes or machine plates. Power and feedback cabling exit on Side B, and the terminals are housed in a Connection box, simplifying field wiring in cabinets with limited depth. A keyed steel shaft ensures positive torque transmission; the shaft seal mounted behind the keyway limits oil or dust ingress. Continuous output reaches 12.0 Nm at standstill, a value supported by the motor’s B length code and the 090 frame size, allowing sustained load holding without overheating during stationary processes.
Dynamic axis security is handled by an integrated holding brake that supplies 11 Nm of locking torque when power is removed, making the motor suitable for vertical or suspended loads. Motion feedback relies on resolver feedback, and the built-in electronics deliver absolute position data for over 4096 revolutions, eliminating homing cycles after each start-up. The electromagnetic design is identified by winding code 058, which sets the motor’s voltage constant and rated current so it can be paired directly with Rexroth digital drives without additional parameter scaling.
Technical Specifications
Centering diameter
110 mm
Connection Direction
Side B
Connection Type
Connection box
Continuous Torque at Standstill
12.0 Nm
Cooling Method
Natural Convection
Current Rating
12.1 A
Encoder Type
Resolver feedback w/ integrated encoder
Flange size
140 mm
Holding Brake
With holding brake
Holding Brake Torque
11 Nm
Inertia
0.00557 kgm^2
Insulation Class
Class F
Motor Length
B
Motor Size
090
Mounting Type
Flange Mounting
Operation Voltage
230V
Position Detection
Absolute (>4096 revs)
Power Rating
3.5 kW
Product type
Servo Motor
Protection Class
IP65
Rated Speed
4000 RPM
Shaft Design
Shaft with keyway
Shaft Seal
Yes
Torque
23 Nm
Weight
7.3 kg
Winding Code
058
Frequently Asked Questions
Common Misspellings
Internal Product Review
The MKD090B-058-KP1-KS is a lightweight motor with excellent precision capabilities. It operates at a fairly common voltage range, simplifying integration. However, some environments may not be suited for the B-side power connection.
Fax: 1-919-867-6204
Shipping & Payment Options
Warranty
Indramat USA 1 Year Warranty
Repair
We offer a repair service for the MKD090B-058-KP1-KS. Exchange
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