SR-A5.0460.030-00.030 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat SR-A5.0460.030-00.030 is part of the SR Synchronous Servo Motors series and features a flange width of 190 mm with a DC link voltage of 670 V. It has a resolver feedback type with a resolution of 8192 increments per revolution and ±10 angular minutes of accuracy. The servo motor provides a locked-rotor torque of 46 Nm and a rated speed of 3000 revolutions per minute.
Internal Product Review
The SR-A5.0460.030-00.030 is a Bosch Rexroth Indramat synchronous servo motor with resolver feedback and a 670 V DC link rating. Rated speed of 3000 min⁻¹ and locked-rotor torque of 46 Nm give the motor impressive control authority for demanding motion axes.
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Product Description:
The SR-A5.0460.030-00.030 synchronous servo motor is built by Bosch Rexroth Indramat for the SR Synchronous Servo Motors series. It converts the regulated output of an industrial drive into controlled rotary motion, allowing automation equipment to position tooling, conveyors, or indexing tables with high repeatability. A rotor inertia of 166 × 10⁻⁴ kg·m² moderates speed changes, supporting smooth servo response without excessive overshoot. This response characteristic helps the drive maintain stable motion during acceleration, deceleration, and rapid changes in commanded position.
The motor operates with an inverter connected to a 670 V DC link, providing voltage headroom for rapid acceleration. Continuous torque production is rated at 1.58 Nm/A, so each ampere of phase current produces predictable shaft torque. Under rated conditions, the rotor can reach 3000 rpm, matching common machine-tool and packaging spindle speeds. During startup or emergency clamping, the motor can withstand a locked-rotor torque of 46 Nm while drawing up to 29 A. Two NTC sensors embedded in the windings report temperature to the controller, enabling thermal cutback before the insulation reaches its operating limit. This temperature monitoring allows the controller to reduce output or stop the motor if excessive winding heat is detected.
A flange width of 190 mm aligns with standard IEC mounting interfaces, simplifying gearbox or machine-frame integration. Maximum airborne sound pressure is limited to 58 dB(A) at rated load, keeping acoustic emissions within typical plant guidelines. The structure resists shocks up to 6 g, so the motor can be installed on machines exposed to abrupt axis reversals or impacts during transportation. Position feedback is supplied by a resolver that provides an interpolated resolution of 8192 increments per revolution with an accuracy of ±10 angular minutes. This feedback supports precise commutation and position control in areas subject to high vibration. The resolver windings also tolerate high temperatures, while the paired NTC sensors provide the controller with direct thermal data from the motor windings.
