SR-A5.0460.030-14.000 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat SR-A5.0460.030-14.000 is a synchronous servo motor from the SR Synchronous Servo Motors series with a mass of 40.2 kg and a motor length of 428 mm. It features a rated speed of 3000 revolutions per minute, a holding torque of 56 Nm, and uses a resolver encoder with a resolution of 8192 increments per revolution. The motor has a shaft diameter of 32 mm and a torque constant of 1.58 Nm/A.
Internal Product Review
The SR-A5.0460.030-14.000 is a Bosch Rexroth Indramat synchronous servo motor with a rated speed of 3000 min^-1 and a torque constant of 1.58 Nm/A. Resolver feedback with 8192 incr./rev supports precise commutation and dependable positioning performance. A 24 VDC ±10% brake supply and 56 Nm holding torque make this motor a strong choice for controlled servo applications.
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Product Description:
The SR-A5.0460.030-14.000 is a synchronous servo motor manufactured by Bosch Rexroth Indramat within the SR Synchronous Servo Motors series. It is intended for axis drives that demand fast response and repeatable positioning in assembly lines, material-handling gantries, and high-speed tooling. By combining a medium-frame mechanical package with an electromagnetic holding brake and resolver feedback, the motor interfaces directly with compatible drive controllers to convert commanded current into proportional torque while securing the load whenever the system is de-energized. This arrangement supports controlled starts, stable stopping behavior, and accurate motion on axes that must hold position between commanded moves.
During operation, the motor reaches a rated speed of 3000 rpm, allowing continuous motion cycles without exceeding thermal limits. A static holding torque of 56 Nm keeps vertical or unbalanced loads from drifting when the shaft is clamped. Shaft position is reported by a resolver encoder that delivers 8192 increments per revolution of interpolated resolution, giving the drive fine granularity for velocity loops. The brake circuit accepts 24 VDC ±10% and draws 1.33 A, with a residual ripple of 5 percent to prevent chatter. When the shaft is locked at start-up, the winding can accept a locked-rotor current of 29 A and generate 46 Nm of locked-rotor torque, allowing the axis to overcome static friction before transitioning into normal running. Overall motor length is 428 mm, and the protruding shaft measures 58 mm.
Dynamic behavior is characterized by a torque constant of 1.58 Nm/A, so every ampere commanded by the drive translates into predictable torque at the coupling. The rotor contributes an inertia of 166 × 10⁻⁴ kg·m², complemented by a brake inertia of 30 × 10⁻⁴ kg·m², providing a balance between acceleration capability and load stability. Total motor mass is 40.2 kg, and the cylindrical shaft is machined to 32 mm in diameter to transmit the rated output without excessive torsional deflection. These values are useful when matching the motor with couplings, support structures, and axis hardware that must respond smoothly under changing load conditions.
