Product Description:

The MAC090B-A-0-ZD-1-B/110A-O/I00625/S001 is a servo motor built by Bosch Rexroth Indramat for the MAC AC Servo Motors series. It is specified as a motor for analog drives and is installed in automation lines where closed-loop velocity and position must be maintained without digital interfaces. By converting electrical energy into controlled rotary motion, the unit drives gearboxes, ball screws, and other mechanical elements in machine tools, packaging stations, and handling modules.

This model delivers a torque of 3.7 Nm at standstill while drawing a continuous current of 8.1 A, and its electromagnetic coupling factor is given by a torque constant of 0.51 Nm/A. Rated operation occurs at 2000 rpm, matching mid-speed axes that need moderate inertia and repeatable indexing. Radial surface cooling is supported by a blower mounted to the right of the shaft and powered from an AC 115 V supply, so thermal losses are expelled without external ducting. The housing is sealed to IP65, blocking dust ingress and low-pressure water jets on shop-floor equipment. Transient load steps are covered by a peak pulse current capability of 53 A, allowing fast acceleration before the 45-minute thermal time constant limits steady heating. Electrical dynamics are further shaped by a 1.9 mH winding inductance and a 1.85 Ω resistance, which affect current rise and copper loss under servo drive modulation.

The motor body weighs 12.5 kg, so mounting plates must support that static load while damping vibration from rapid reversals. Alignment of the flange is guided by a centering diameter of 110 mm, and the steel rotor has an inertia of 20 × 10⁻⁴ kg·m², which helps smooth speed changes commanded by analog controllers. Shaft power is transmitted through a 24 mm diameter shaft, and the overall assembly length of 277 mm permits installation in cabinets with limited depth.