B2.SM.502-44B0 KEB
Wake Industrial LLC is not an authorized distributor of this product.
The KEB B2.SM.502-44B0 is part of the SM Synchronous Servo Motors series and has a mass of 2.4 kilograms. This motor features a maximum speed of 10000 rpm and a max torque of 11.6 Nm. It offers a rated current of 2.75 A and a stall torque of 2.37 Nm.
Internal Product Review
The B2.SM.502-44B0 is a KEB synchronous servo motor with 11.6 Nm maximum torque and 10000 rpm maximum speed. A 30000 h bearing life and 0.84 kgcm2 rotor inertia support dependable service and crisp dynamic response. A strong choice for demanding servo axes requiring efficient, high-speed motion control.
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Product Description:
The B2.SM.502-44B0 is a synchronous servo motor produced by KEB for the SM Synchronous Servo Motors series. It functions as a compact rotary actuator for closed-loop positioning tasks in industrial automation, where precise speed and torque control are required for axes in packaging, material handling, or assembly equipment. The motor works with a servo drive to convert commanded electrical input into controlled rotary motion, allowing repeatable response during indexing, speed regulation, and position changes.
The motor delivers a stall torque of 2.37 Nm while drawing a rated phase current of 2.75 A, providing a useful reference for continuous static loads. When acceleration peaks are requested, the drive can reach a maximum speed of 10000 rpm and permits momentary operation up to 17.2 A without loss of synchronization. Internally, the copper windings present a resistance of 6.5 Ω and an inductance of 28.5 mH, which influence current rise time and drive tuning. The voltage constant of 79.20 Vpk/1000 rpm indicates the generated back EMF, so the inverter must provide adequate DC-bus voltage to reach the commanded speed. With four pole pairs, electrical cycles occur more frequently than mechanical revolutions, which helps support smooth torque production. The shaft measures 14 mm in diameter and 30 mm in length, allowing direct coupling to precision gearheads, and the motor can produce up to 11.6 Nm during brief overloads.
The bearings have a service life of 30000 h, supporting extended duty in continuous-operation machinery. During locked-rotor conditions, the windings can withstand a current of 2.95 A without thermal damage, matching the stated stall operating point. The rotor mass moment of 0.84 kg·cm² keeps inertia low, so speed changes can follow command signals with minimal lag. Overall mass is 2.4 kg, which helps simplify installation on small gantries and other compact motion axes.
