Product Description:

The MDD090A-N-020-N2L-130PB2 is a synchronous servo motor built by Bosch Rexroth Indramat for the MDD Synchronous Motors series. Designed for digital drive controllers, it converts inverter output into controlled mechanical rotation for axis positioning in automated equipment. A standard housing with Class F insulation supports reliable thermal performance, standard balancing reduces vibration during operation, and the preinstalled blocking brake keeps the load secure when power is removed. This layout supports repeatable motion in automated axes that depend on stable holding behavior and accurate speed control.

The motor seats against a centering collar that measures 130 mm, aligning flange concentricity with adjacent gearboxes. Power and feedback conductors exit on side B through a keyed connector, an arrangement that keeps cable loops clear of linear guides when the unit is front-mounted. Position data are transmitted as digital servo feedback, allowing the drive controller to close velocity and position loops with high resolution. At standstill, the electromagnetic system can deliver a continuous torque of 3.7 Nm, giving stable force for tensioning or indexing duties. When the motor reaches its nominal operating point of 2000 rpm, the A-length frame balances thermal dissipation with compact depth, while a shaft seal helps prevent lubricant migration into the stator cavity.

The blocking brake integrated on the non-drive end develops up to 11.0 Nm of static torque, helping keep the load fixed during safety stops or dwell periods on vertical axes. Torque is delivered to the machine element through a keyway machined into the single drive-side shaft, and the opposite shaft end is omitted to reduce overall length where rear clearance is limited. Classified as size 090, the motor matches medium-power inverter outputs, and the standard housing withstands typical shop-floor contamination. An internal shaft seal works with the blocked vent path to keep coolant spray and fine dust away from the bearing races without additional protective covers.