MKE098B-058-CP1-BUNN Bosch Rexroth Indramat
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MPN: R911384048
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The Bosch Rexroth Indramat MKE098B-058-CP1-BUNN is a servo motor from the MKE Synchronous Motors series designed for potentially explosive areas. This motor features a maximum torque of 43.5 Nm, operates with a maximum velocity of 5000 min⁻¹, and has a continuous current at standstill of 12.4 A. It includes an optical multiturn absolute Hiperface encoder and comes equipped with a holding brake that delivers 11 Nm of torque.
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Product Description:
The MKE098B-058-CP1-BUNN is a brushless AC servo motor built by Bosch Rexroth Indramat for the MKE Synchronous Motors series. It is intended for use in potentially explosive areas, where it converts regulated drive current into controlled mechanical rotation for positioning and speed-related tasks on filling lines, mixers, and material-handling axes. A UL/CSA-compliant housing, a terminal box on side B, and a shaft with a DIN 6885 keyway support integration with standard industrial gearheads and explosion-proof enclosures. This layout also helps route power connections in cabinets and machine frames where protected cable entry is required.
At thermal equilibrium with a 60 K winding rise, the motor can deliver a continuous torque of 12.0 Nm while drawing a steady phase current of 12.4 A. For short acceleration periods, the drive may apply up to 55.9 A, allowing the rotor to reach a peak torque of 43.5 Nm. This dynamic range supports rapid indexing and short move cycles up to a rated speed of 5000 rpm. A torque constant of 1.09 Nm/A links current to output torque, while the 0.740 mH winding inductance supports fast current changes for responsive control. With a voltage constant of 70 V per 1000 rpm, the motor is suitable for use with compatible IndraDrive inverters that must handle the resulting back EMF during high-speed operation.
The built-in holding brake provides 11 Nm of holding torque to keep the shaft stationary during power loss or standstill. A rotor inertia of 0.00430 kg·m² provides a balance between responsiveness and motion stability, and the encoder system supplies absolute position feedback through a 128-count optical multiturn arrangement. Operation is permitted from 0 to +40 °C, and this range is matched to Class 155 F insulation and a shaft seal with IP protection against dust ingress. The motor has an overall mass of 18.0 kg, while vibration remains limited to 61.8 dB(A). A discharge capacitance of 6.7 nF and a winding resistance of 5.80 Ω also support stable electrical behavior in hazardous-area installations.
Frequently Asked Questions about MKE098B-058-CP1-BUNN:
Q: What is the maximum speed of the MKE098B-058-CP1-BUNN servo motor?
A: The maximum velocity for this motor is 5000 min⁻¹, making it suitable for fast-paced industrial applications.
Q: Does the MKE098B-058-CP1-BUNN include a holding brake?
A: This motor comes equipped with a holding brake, which has a holding torque of 11 Nm.
Q: What shaft features are provided on the MKE098B-058-CP1-BUNN motor?
A: The shaft design features a keyway in accordance with DIN 6885 and includes a shaft seal for added protection.
Q: What kind of encoder is built into the MKE098B-058-CP1-BUNN motor?
A: The encoder is an optical, multiturn absolute Hiperface type, offering 128 increments for precise position detection.
Q: What is the continuous torque the MKE098B-058-CP1-BUNN can deliver at standstill?
A: The maximum continuous torque at standstill is 12.0 Nm when measured at 60K housing temperature rise.
