SBL2-0080-45/T0MVUPS2 Kollmorgen
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The Kollmorgen SBL2-0080-45/T0MVUPS2 is a servomotor from the DBL Synchronous Servomotors series with a flange size of 55 mm and a rated power of 0.34 kW. It has a rated speed of 4500 rpm and develops a rated torque of 0.72 Nm. The motor features a peak current of 6.7 A and a rotor inertia of 0.13 kgcm².
Internal Product Review
The SBL2-0080-45/T0MVUPS2 is a Kollmorgen DBL synchronous servomotor with 0.34 kW rated power and 0.72 Nm rated torque. Rated speed of 4500 rpm and low rotor inertia of 0.13 kgcm² support quick, controlled motion in precision servo applications. A strong choice for dynamic automation duty, with 0.8 Nm standstill torque as a notable performance advantage.
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Product Description:
The SBL2-0080-45/T0MVUPS2 is a synchronous servomotor produced by Kollmorgen within the DBL Synchronous Servomotors series. It is intended for closed-loop motion axes where compact rotary power is required for positioning, indexing, and speed control tasks in automated equipment. The motor integrates with compatible digital drives through a feedback connector that provides a secure path for signal transmission during installation and operation.
The unit mounts to machinery with a 55 mm square flange, enabling direct coupling to small gearheads or driven shafts. Under continuous operation, it delivers 0.34 kW of mechanical power at a rated speed of 4500 rpm, producing a corresponding torque of 0.72 Nm. Peak dynamic events are supported by a current ceiling of 6.7 A. The bearings support an axial load of 81 N and a radial load of up to 115 N. When the energized rotor is stationary, standstill torque reaches 0.8 Nm and standstill current is 1.5 A, while static friction is limited to 0.02 Nm for smooth startup. A torque constant of 0.54 Nm/A relates commanded current to generated torque, and the 14.4 mH phase inductance helps filter switching harmonics for accurate current regulation.
The motor’s dynamic response is influenced by a rotor inertia of 0.13 kg·cm², allowing fast acceleration while keeping servo gains moderate. Thermal accumulation follows a time constant of 22 min, indicating that winding heat builds gradually during operation. This behavior allows the drive to account for temperature changes when the motor experiences intermittent loads. Electrical losses are primarily resistive, and each phase has a winding resistance of 14.6 Ω. This resistance determines the I²R heating contribution and helps establish the drive voltage needed to regulate current accurately. The combination of low rotor inertia, gradual thermal response, and measured phase resistance supports stable control during rapid positioning cycles and repeated speed changes.
