SE-B2.020.060-14.015 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat SE-B2.020.060-14.015 is part of the SE Synchronous Servo Motors series and features an IP67 rating with a dry-running sealed A-flange. It delivers a nominal speed of 6000 rpm and a maximum torque of 4.0 Nm. The servo motor has a shaft size of 14 by 30 millimeters without a keyway, and provides a standstill current of 5.0 amps and static torque of 2.0 Nm.
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Product Description:
The SE-B2.020.060-14.015 is a synchronous servo motor produced by Bosch Rexroth Indramat for the SE Synchronous Servo Motors series. As a compact rotary actuator, it converts current from a servo amplifier into precise torque and speed. This controlled motion supports positioning tables, pick-and-place heads, spindle axes, and other automated machinery that requires accurate acceleration and repeatable movement. The motor operates with a compatible servo drive that regulates current according to the commanded position, speed, or torque.
The A-flange has an IP67 protection rating, allowing the housing to operate in washdown areas, while a dry-running seal prevents lubricant from migrating along the shaft. The integrated holding brake provides 3.5 Nm of holding torque and operates from a 24 V (±10%) control supply. It secures vertical loads when power is removed and releases when the brake current reaches 0.7 A. The rotor has an inertia of 0.44 × 10⁻³ kg·m², supporting quick acceleration without excessive overshoot. The motor can provide 4.0 Nm during short-term peaks and sustain speeds up to 6000 rpm for high-throughput indexing. Mechanical coupling is provided through a Ø14 × 30 mm cylindrical shaft. The shaft has no keyway, which eliminates the stress concentrations commonly associated with keyed connections.
At standstill, the motor draws 5.0 A while producing a static torque of 2.0 Nm. The winding has a torque constant of 0.43 Nm/A, providing predictable current-to-torque conversion for the servo drive. Control loops must also account for a back-EMF gradient of 46 V/1000 rpm and an armature resistance of 4.43 Ω. The winding inductance is 20.8 mH, which affects the response of the current regulator during rapid command changes. These electrical characteristics influence the voltage margin required from the drive during acceleration, deceleration, and rapid reversals. Proper drive selection must account for the motor’s operating current, back-EMF, resistance, and inductance to maintain stable control throughout the intended speed range.
