Product Description:

The SR-B5.0460.020-00.000 is a synchronous servo motor manufactured by Bosch Rexroth Indramat for the SR Synchronous Servo Motors series. Within industrial automation, it generates controlled rotary motion for positioning and velocity-regulated axes in machining centers, packaging equipment, and pick-and-place modules. Integrated DSF multi-turn encoder feedback supplies absolute position data over multiple shaft revolutions, allowing the drive controller to maintain closed-loop control without losing position information after movement. This feedback arrangement supports repeatable motion on axes that cycle through frequent starts, stops, and reversals.

At standstill, the motor delivers 28.0 Nm of continuous torque while drawing 43.4 A of current, and its shaft can maintain rated speed up to 3000 rpm under nominal load. The torque constant is 0.65 Nm/A, so changes in current produce proportional torque for predictable response. A molded housing with an IP65 rating helps keep dust and water jets away from the internal windings. The centering diameter aligns the flange during mounting, while the Side A power connection, winding inductance, winding resistance, and thermal time constant support orderly cable routing, controlled current rise, and stable temperature behavior during extended duty.

For short-duration demand, the drive may command 166.4 A, enabling the rotor to reach a peak torque of 100.4 Nm during acceleration or disturbance rejection. Dynamic response is supported by a rotor inertia of 0.0170 kg·m², which balances torque stability with quick speed changes. The assembly mass is 48 kg, giving the motor substantial frame presence when it is mounted on the machine. Because the unit is supplied without a blocking brake, vertical or suspended loads must be secured by an external mechanical holding device whenever power is removed.