SR-A3.0042.060-10.000 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat SR-A3.0042.060-10.000 is part of the SR Synchronous Servo Motors series and has a mass of 7.0 kilograms with a flange size of 116 millimeters. It features a DC link voltage of 670 V, a resolver feedback type with 8192 increments per revolution, and a rated speed of 6000 revolutions per minute. The motor offers a locked-rotor torque of 3.9 Newton meters, a shaft size of 19 by 40 millimeters, and uses two NTC temperature sensors for monitoring.
Internal Product Review
The SR-A3.0042.060-10.000 is a Bosch Rexroth Indramat synchronous servo motor with resolver feedback and a 6000 min^-1 rated speed. Locked-rotor torque of 3.9 Nm and a torque constant of 0.7 Nm/A support crisp response and stable servo tuning. Feedback resolution of 8192 incr./rev. and dual NTC temperature sensors make the unit a strong choice for precise, well-monitored motion control.
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Product Description:
The SR-A3.0042.060-10.000 is a synchronous servo motor manufactured by Bosch Rexroth Indramat for the SR Synchronous Servo Motors series. It serves as an electromechanical drive element that delivers precise rotary motion for indexing tables, pick-and-place arms, and other positioning axes found in automated production cells. When paired with a compatible drive controller, the motor enables closed-loop speed and torque regulation that is essential for repeatable cycle times in industrial automation.
The winding is energized from a DC bus of 670 V, giving the drive electronics ample headroom for rapid acceleration. Under rated conditions, the rotor can reach 6000 rpm, allowing high surface speeds on compact mechanical transmissions. Each ampere of phase current produces 0.7 Nm/A of electromagnetic torque, a constant that simplifies current-based control algorithms. During startup, the motor can withstand a locked-rotor current of 6.0 A while delivering a stall torque of 3.9 Nm; these values assist with fuse and coupling selection. Position feedback is supplied by a resolver, while two NTC temperature sensors report winding heat to the drive so derating can be applied before insulation limits are reached. The smooth shaft has a diameter of 19 mm and a length of 40 mm, while the overall housing length is 223 mm, making inline mounting practical inside compact machines.
Mechanical dynamics are influenced by a rotor inertia of 7 × 10⁻⁴ kg·m², which supports rapid speed changes without excessive overshoot. The motor body weighs 7.0 kg, making it suitable for cantilevered mounting on small gantries. A resolver resolution of 8192 increments per revolution provides fine position granularity for contouring tasks. The square flange measures 116 mm, providing a standardized interface for gearheads and brackets while maintaining a consistent centerline height across the SR family. The motor’s compact dimensions support installation in machinery where available mounting space is limited. Its feedback and thermal monitoring systems allow the connected drive to regulate motion while protecting the windings during demanding operating cycles.
