Product Description:

The MAC112B-0-CD-1-B/130-A-0-J1250/S05 is a brushless AC servo motor manufactured by Bosch Rexroth Indramat for the MAC AC Servo Motors series. Delivered as a motor for analog drives, it allows legacy control hardware to execute closed-loop motion without digital fieldbus upgrades. Permanent-magnet excitation and a built-in tachogenerator provide precise speed regulation, making the unit suitable for tooling spindles, conveyors, and indexing axes that require fast responses within compact mechanical envelopes.

Mechanical alignment is handled by a centering pilot measuring 130 mm, ensuring concentric mounting to gearboxes or machine plates. Heat is removed through natural convection, eliminating the need for external blowers while the motor remains within its thermal duty curve. Position data are supplied through incremental encoder feedback, which provides quadrature pulses and an index mark for rapid homing. The rotor can sustain a rated speed of 5000 rpm, providing a high surface velocity without requiring gear multiplication. Three-phase power enters through a keyed connector on side A, allowing electrical access from that side of the installation. This connector arrangement can simplify cable routing when nearby machine components limit access to the opposite side of the housing.

The integrated tachogenerator outputs 1.5 V/1000 rpm, providing a direct velocity signal that analog controllers can process without additional scaling circuits. The motor uses winding code CD, which matches the stator impedance to compatible MAC series drive modules. The motor has no holding brake, so applications that require static load support must use an external locking mechanism or drive-applied torque. Frame size 112 establishes the flange and shaft geometry, while length class B completes the motor’s physical envelope for medium-inertia loads. The motor can be installed in pick-and-place robots, automated production stations, conveyors, and general machinery. Its feedback arrangement allows the connected drive to monitor motion while the tachogenerator supplies the velocity signal needed for analog speed control.