MKE098B-058-CP0-BUNN Bosch Rexroth Indramat
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MPN: R911384047
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The Bosch Rexroth Indramat MKE098B-058-CP0-BUNN is a servo motor from the MKE Synchronous Motors series designed for potentially explosive areas. It features a continuous torque of 12.0 Nm at standstill (60K), a maximum torque of 43.5 Nm, and a shaft with DIN 6885 keyway and seal. The motor weighs 18 kg and uses an optical multiturn absolute Hiperface encoder with 128 increments.
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Product Description:
The MKE098B-058-CP0-BUNN is a servo motor produced by Bosch Rexroth Indramat within the MKE Synchronous Motors series. It is intended for use in potentially explosive industrial zones where precise rotary actuation must comply with UL and CSA housing requirements. The design uses a terminal-box connection on the B-side and a shaft with a DIN 6885 keyway, enabling direct coupling to gear stages or drive shafts. This model is supplied without a holding brake, so external mechanical retention must be provided when the axis must remain motionless during power loss. Its hazardous-area construction also suits process equipment that requires accurate motion with a familiar industrial shaft and connection layout.
At standstill, and with a 60 K winding temperature rise, the motor can continuously deliver 12.0 Nm while drawing 12.4 A. The torque constant of 1.09 Nm/A links commanded drive current to output torque, which helps keep current scaling straightforward. For dynamic peaks such as acceleration or load impact, the unit permits up to 43.5 Nm, and the mechanical design supports operating speeds as high as 5000 rpm. This operating range makes the motor suitable for conveyor, spindle, or mixing duties that require both strong startup torque and stable motion during continuous running.
The motor is rated to operate in ambient temperatures from 0 to +40 °C, which aligns with typical industrial cabinet and machine conditions. A back-EMF constant of 70.0 V/min⁻¹ assists the inverter with rotor estimation and DC bus voltage selection. With a rotor inertia of 0.00430 kgm², the axis balances quick response with stable speed regulation, and the total mass of 18.0 kg helps resist vibration during operation. Insulation class 155 (F) supports elevated winding temperatures. A shaft seal, 0.740 mH phase inductance, 5.80 Ω resistance, and 6.7 nF discharge capacity influence current ripple, conducted EMI, and the motor's electrical behavior at the drive.
Frequently Asked Questions about MKE098B-058-CP0-BUNN:
Q: What is the maximum velocity of the MKE098B-058-CP0-BUNN motor?
A: The MKE098B-058-CP0-BUNN can reach a maximum velocity of 5000 min⁻¹.
Q: What continuous torque does the MKE098B-058-CP0-BUNN motor deliver at standstill?
A: This model provides a continuous torque of 12.0 Nm at standstill when cooled at 60K.
Q: What type of encoder is used in the MKE098B-058-CP0-BUNN motor and how many increments does it have?
A: The MKE098B-058-CP0-BUNN features a multiturn absolute Hiperface optical encoder with 128 increments.
Q: Is the MKE098B-058-CP0-BUNN supplied with a holding brake?
A: This motor is built without a holding brake.
Q: What is the shaft design of the MKE098B-058-CP0-BUNN motor?
A: A shaft with a DIN 6885 keyway and shaft seal is included on this motor.
