Product Description:

The SD-B4.140.020-05.000 is a member of the SD Magnet Motors series produced by Bosch Rexroth Indramat. It is a permanent-magnet synchronous motor intended for integration into industrial automation lines where digital drive controllers command precise velocity and positioning. The motor converts electrical power into controlled mechanical rotation so that tooling, conveyors, or indexing mechanisms move as programmed. It is commonly used where controlled acceleration and repeatable stopping are important for coordinated machine motion. Its closed-loop feedback supports repeatable motion in assembly cells and material-handling stations.

With a flange reference of 142 mm, the motor attaches directly to standardized mounting plates, keeping the shaft centerline aligned with gearboxes or couplings. The rotor carries Ferrite permanent magnets, providing stable magnetic flux in applications that do not require rare-earth materials. A nominal speed of 2000 rpm gives the synchronous operating speed used for matching the motor to the drive and load. The unit is a brushless servo motor, so eliminating brushes reduces maintenance and allows rapid current reversal for bidirectional motion. Its output shaft measures 24 × 50 mm, so couplings must accommodate a 24 mm diameter and a 50 mm seating length for proper engagement.

The motor has a stall torque of 14.0 Nm, allowing the drive to hold loads at standstill when ventilation is provided as required. Its medium frame size supports use in machinery that needs a balance of torque capacity and installation space. This arrangement suits indexing mechanisms, conveyor axes, and similar motion systems that rely on stable servo response during starts, stops, and reversing moves. The design keeps the product focused on standard industrial use without adding variant-specific hardware that would complicate installation.