SG-B3.220.017-10.010 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat SG-B3.220.017-10.010 is a brushless servo motor from the SG Synchronous Servo Motors series with a nominal speed of 2200 rpm and a static torque of 25.0 Nm. It features a 140 mm flange size, metallic construction, and is equipped with a resolver encoder for rotor orientation and spindle speed. This model uses SmCo magnets, has IP65 protection, and operates in ambient temperatures from 0 to 40 degrees Celsius.
Internal Product Review
The SG-B3.220.017-10.010 is a Bosch Rexroth Indramat brushless servo motor suited for precise spindle and axis service. Thermal radiation with natural convection supports efficient passive cooling, while the resolver encoder delivers dependable rotor orientation and spindle speed feedback. IP65 protection and 25.0 Nm static torque make the unit a strong choice for demanding motion applications.
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Product Description:
The SG-B3.220.017-10.010 synchronous servo motor is produced by Bosch Rexroth Indramat for the SG Synchronous Servo Motors series. As a brushless servo motor, it delivers regulated torque to machine tools, pick-and-place heads, and other automation axes that demand positional accuracy. Its metallic housing encloses the rotor magnets and resolver, while the IM B5 flange, which can also be installed in IM V1 or IM V3 positions, mounts directly to compatible gearboxes. Heat leaves the frame through thermal radiation and natural convection, so the motor does not require forced-air cooling.
The rotor turns at a nominal speed of 2200 rpm under rated operating conditions. The motor produces a static torque of 25.0 N·m at standstill, providing holding force for mid-inertia loads when the drive is energized. A compatible drive must supply a standstill current of 20.9 A so the stator windings can generate this torque. The housing meets the IP65 protection class, preventing dust ingress and resisting water jets from multiple directions. A 140 mm square flange with accuracy grade R centers the frame against mating machinery. Because the motor does not include a holding brake, an external clamping device is required when the shaft position must be retained after power is removed.
The allowable ambient temperature range is 0 to 40 °C, supporting operation in typical industrial environments. Its insulation system is rated Class F according to VDE 0530, permitting winding temperatures up to 155 °C without loss of dielectric strength. The rotor uses SmCo (samarium-cobalt) magnets, which provide stable magnetic flux at elevated temperatures and resist demagnetization. Resolver feedback reports the rotor angle and rotational speed to the controller, allowing the drive to regulate position, velocity, and torque. The output stub is a 24 mm × 50 mm smooth cylindrical shaft that accommodates clamp or shrink-fit couplings without requiring a keyway. The flange face supports accurate axial alignment between the motor shaft and the driven component, helping reduce coupling stress during operation.
