Description
Product Overview
The Bosch Rexroth Indramat MKE037B-144-CP0-BENN is a brushless synchronous servo motor from the MKE series, intended for drive applications requiring controlled motion and encoder feedback. The integrated multiturn absolute Hiperface encoder provides position feedback to a compatible drive system. Its shaft uses a DIN 6885-1 keyway and sealing ring, while the terminal box is positioned on the B-side of the motor. The specified configuration does not include a holding brake. These details matter when replacing a motor in an existing machine because mechanical and feedback differences can prevent an otherwise similar unit from operating correctly.
The published MKE037B technical data lists a maximum torque of 4.0 Nm, maximum current of 15 A, continuous standstill torque of 0.9 Nm at a 60 K temperature rise, and a torque constant of 0.30 Nm/A at 20°C. The winding code and encoder type must be matched to the drive configuration. The encoder’s supply and signal interface also need to be compatible with the installed drive; a motor with resolver feedback or a different encoder arrangement is not automatically an acceptable replacement.
For hazardous-area applications, verify the complete motor nameplate and the applicable approval documentation. Published product descriptions identify this configuration as intended for potentially explosive environments and report IP65 protection, but the actual installation must satisfy the relevant area classification, temperature limits, mounting requirements, and regional certification rules. IP65 alone does not establish explosion-protection suitability. Before procurement, confirm the R911326031 order number, inspect the encoder and shaft interfaces, and request test records for any used or refurbished motor.
Product Introduction
The MKE037B-144-CP0-BENN is suited to industrial motion systems where a compact synchronous servo motor, absolute position feedback, and a keyed shaft are required. Its configuration can be relevant to machinery operating in potentially explosive environments, provided the motor’s documented approval matches the installation.
When sourcing a replacement, compare the complete type code rather than relying on the MKE037B prefix. Confirm encoder type, winding, shaft design, brake configuration, connection direction, housing design, and drive compatibility. A similar-looking MKE motor may have a different feedback system or mechanical interface.
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Product model | MKE037B-144-CP0-BENN |
| Manufacturer | Bosch Rexroth Indramat |
| Order number | R911326031 |
| Product type | Synchronous servo motor |
| Motor family | MKE / IndraDyn S |
| Motor size | 037 |
| Motor length | B |
| Winding code | 144 |
| Motor design | Brushless synchronous |
| Encoder | Multiturn absolute optical encoder |
| Encoder interface | Hiperface |
| Encoder increments | 128 |
| Encoder resolution | Published listings report 12-bit resolution; confirm the encoder documentation |
| Continuous standstill torque | 0.9 Nm at 60 K temperature rise |
| Maximum torque | 4.0 Nm |
| Continuous standstill current | 3.3 A at 60 K temperature rise |
| Maximum current | 15 A |
| Torque constant | 0.30 Nm/A at 20°C |
| Winding resistance | 3.70 Ω at 20°C |
| Voltage constant | 18.2 V per 1,000 rpm at 20°C |
| Maximum speed | Published listings report 9,000 rpm; verify application limits |
| Holding brake | None |
| Shaft | Keyed, DIN 6885-1, with sealing ring |
| Electrical connection | Terminal box, B-side |
| Protection rating | IP65, as published for this configuration |
| Insulation class | 155 (F) |
| Ambient temperature | 0°C to +40°C, as listed for this configuration |
| Hazardous-area suitability | Verify exact approval and installation conditions |
| Condition | Confirm actual condition with supplier |
Technical values are based on published MKE documentation and product references. Confirm the applicable motor documentation and drive operating limits before using these figures for sizing or acceptance testing.
MKE037B-144-CP0-BENN
Related Products
These are related models or components for comparison, not automatically interchangeable replacements.
- MKE037B-144-CP0-BUNN (R911324261) — Similar motor configuration with the same size, winding code, encoder family, keyed shaft, and no holding brake; verify the final type-code differences and housing requirements.
- -144-CP1-BENN (R911308500) — Related motor configuration with a different brake code.
- -144-AP0-BENN (R911321289) — Related motor with a different encoder code; verify the exact feedback configuration before selection.
- -144-CG0-BENN (R911318206) — Related motor with a different encoder configuration.
- -144-CP0-AUNN (R911336692) — Related motor type code with different connection and housing-code details; verify mechanical and approval requirements.
Frequently Asked Questions
Q1: What is the Bosch Rexroth -144-CP0-BENN?
It is an MKE-series synchronous servo motor with order number R911326031, configured with a multiturn absolute Hiperface encoder, keyed shaft, B-side terminal box, and no holding brake.
Q2: Does this motor include a holding brake?
No. The 0 brake code identifies the no-holding-brake configuration in the MKE037 type-code documentation. Confirm the full type code on the motor nameplate before ordering.
Q3: Is the -144-CP0-BENN suitable for hazardous areas?
Published listings identify it as intended for potentially explosive environments. Before installation, verify the exact motor’s approval markings, area classification, and applicable safety requirements. Do not treat the IP65 rating as proof of explosion-protection certification.
Q4: Can it replace another motor?
Not necessarily. Compare the encoder, winding, shaft, brake, terminal-box direction, and housing code. A difference in any of these may affect drive compatibility, installation, or certification.
Q5: What are its torque and current ratings?
The published technical data lists 0.9 Nm continuous standstill torque and 3.3 A continuous standstill current at a 60 K temperature rise. Maximum torque is 4.0 Nm and maximum current is 15 A. Actual permissible operation depends on the drive, cooling conditions, and duty cycle.
Q6: What should be checked before commissioning?
Inspect the shaft and sealing ring, terminal box, encoder connector and feedback signals, motor insulation, and mechanical mounting. Verify the motor-drive combination and follow the applicable hazardous-area installation procedures.
Q7: What should procurement request from the supplier?
Request a nameplate photograph showing the complete type code and R911326031 order number, confirmation of the no-brake configuration, documented condition, and available electrical and encoder test results. For hazardous-area service, request the applicable approval documentation as well.
