SE-B2.020.030-14.015
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The SE-B2.020.030-14.015 from Bosch Rexroth Indramat belongs to the SE Synchronous Servo Motor series and features radiation and natural convection cooling. It delivers a maximum torque of 6.9 Nm, operates within a temperature range of 0° to 40°C, and has a protection class of IP67 with a nominal speed of 3000 rpm.
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Product Description:
Bosch Rexroth Indramat manufactured the SE-B2.020.030-14.015. The SE-B2.020.030-14.015 synchronous servo motor has a passive dual-mode cooling system that uses natural convection and radiative heat transfer. According to the Stefan-Boltzmann law, which states that power radiated is proportional to the fourth power of the surface’s absolute temperature, radiation allows thermal energy to be dissipated by electromagnetic emission from the motor’s outer surfaces. At the same time, natural convection helps to regulate temperature by encouraging air movement. Heat is passively transferred away from the motor housing when the motor surface warms the surrounding air, and the air rises due to the decreased air density. Underrated electrical and mechanical stress, the servo motor’s steady-state rotational speed is defined by its rated speed of 3000 rpm. Kinematically speaking, this speed has a direct impact on the angular velocity of the spinning parts and, therefore, the linear velocity of the mechanical loads that are being driven. Operating close to the rated speed enables predictable motion profiles and efficient energy transfer.
With a maximum torque of 6.9 Nm, the motor produces 2.9 Nm of static torque. In load-bearing situations, torque – the rotational equivalent of force – is important for starting motion and maintaining position. The motor’s continuous torque production at a standstill without exceeding its thermal limit is indicated by the given static torque and is suitable for holding or clamping applications under pre-load. The motor’s maximum torque rating is the torque it can maintain for a short time during high-demand situations like fast acceleration or when adjusting for external disturbances. Strong thermal modeling and overload protection are required in drive systems as these characteristics are closely related to the thermal response of the housing and the electromagnetic saturation threshold of the motor’s stator windings. Electrically, the motor can withstand a peak current of 16 A and draws 2.7 A at a standstill. These numbers reflect the motor’s behavior under zero-speed and high-demand dynamic situations, respectively.
The motor’s electromagnetic conversion efficiency, which measures how well electrical input is converted into mechanical torque, is defined by the torque constant of 1.1 Nm/A. More torque per ampere of input current is possible with a high torque constant, which reduces overall power loss and improves motion smoothness. The drive electronics must consider the voltage constant, which is 114 V/1000 rpm and describe the back EMF produced during rotation to avoid overvoltage situations. The motor has moderate electrical impedance, which affects heat production and current response time, with a winding resistance of 14.7 Ω and an inductance of 76 mH. With a ramp-up time of 24 ms and a moment of inertia of 0.44×10⁻³ kg·m², the system provides quick yet regulated acceleration behavior. Its IP67 rating, full dust sealing and temporary waterproofing provide protection and continuous operation in industrial environments with moisture and contaminants. It is designed to operate between 0°C and 40°C.
Frequently Asked Questions about SE-B2.020.030-14.015:
Q: What cooling method is used in the SE-B2.020.030-14.015 servo motor?
A: The SE-B2.020.030-14.015 utilizes radiation and natural convection as its cooling method. This approach allows the motor to dissipate heat without requiring fans or liquid-based cooling systems, making it ideal for enclosed or compact spaces. It relies on heat transfer through the surface and surrounding air, ensuring steady thermal management in various industrial environments.
Q: What is the maximum torque this servo motor can deliver?
A: This motor delivers a maximum torque of 6.9 Nm, which means it can handle sudden mechanical loads and maintain performance under peak demand. The high torque capacity makes it suitable for applications that require precise yet powerful motion control, such as packaging machines or CNC systems.
Q: What is the protection rating of the SE-B2.020.030-14.015 motor?
A: It is rated IP67, which means it is completely protected against dust ingress and can withstand immersion in water up to 1 meter for a limited time. This level of protection ensures the motor’s durability and reliability in harsh or wet industrial settings, reducing the need for additional protective housing.
Q: What is the torque constant and why does it matter?
A: The motor has a torque constant of 1.1 Nm/A. This value indicates the amount of torque the motor generates per ampere of current. A higher torque constant means more efficient torque generation, which contributes to improved responsiveness, control accuracy, and energy efficiency in automation systems.
Q: What type of commutation sensor does this motor use?
A: It uses a brushless commutation sensor to control the switching of phase currents. Brushless commutation enhances the motor’s reliability and operational lifespan by eliminating wear-prone brushes, ensuring consistent performance and reducing maintenance needs in high-duty applications.
