Product Description:

The SR-A2.0041.030-04.000 is a synchronous servo motor produced by Bosch Rexroth Indramat within the SR Synchronous Servo Motors series. It is intended for industrial automation systems that require precise rotary motion under closed-loop control. The motor converts drive current into proportional torque and sends shaft position data through a resolver so the connected controller can coordinate conveyors, tooling stations, and other multi-axis equipment. This arrangement supports stable motion control during repeated starts, stops, and synchronized positioning tasks.

The motor reaches a rated speed of 3000 rpm, which suits indexing duties and high-speed handling cycles. Its electromagnetic design provides a torque constant of 1.43 Nm/A, so each ampere supplied by the drive produces a predictable amount of output torque. The holding brake uses 24 V DC and develops 3.2 Nm, allowing the motor to hold a load when power is removed. Under stalled conditions, the stator draws a locked-rotor current of 2.8 A, which helps set appropriate inverter overcurrent limits. Additional electrical values include a brake rated current of 0.56 A and a brake inertia of 0.4 × 10⁻⁴ kg·m², both of which affect stopping response and brake release behavior.

The motor body measures 253 mm in length and weighs 7.4 kg, which helps determine space and handling requirements in the machine layout. A pilot diameter of Ø95 j6 centers the flange, while the smooth shaft measures 14 × 30 mm and uses an A5 × 5 × 25 feather key for torque transmission. At startup, a locked-rotor torque of 4.0 Nm and a rotor inertia of 6 × 10⁻⁴ kg·m² can be used when setting acceleration behavior. The resolver provides 8192 increments per revolution of feedback resolution with an accuracy of ±10 angular minutes, giving the control system fine positional information during both rapid travel and low-speed motion.