Product Description:

The MMD012A-030-EG1-KN from Bosch Rexroth Indramat belongs to the MMD Synchronous Motors series and serves as a compact servo motor for positioning and light-duty feed axes in automated equipment. It is a synchronous motor intended to run from a 230 V drive and provide closed-loop motion through its incremental encoder. The plain shaft has a shaft sealing ring, which helps protect the motor in production cells where airborne fluids and dust are present. Its compact format also suits applications where installation space is limited but accurate motion is still required.

The motor delivers a continuous standstill torque of 0.32 Nm and reaches its nominal operating point at 3000 rpm. At that speed, it produces a rated mechanical output of 100 W while using a 230 V winding set identified by code 030. The housing has an IP65 rating and uses a 30 mm pilot with a 45 mm square flange for mounting. Electrical terminations exit toward the A-side through a plug with an attached 25 cm cable. This arrangement keeps the connection point close to the motor body and reduces unused cable length. A rotor inertia of 0.067 × 10⁻⁴ kg·m², a motor weight of 0.73 kg, and a shaft diameter of 8 mm help the unit accelerate small stages without placing excessive load on miniature ball screws or belt drives. Maximum installation altitude is 1000 m, and operation is permitted up to 85% relative humidity.

A holding brake rated for 1.3 Nm secures vertical loads. It is released electrically from a 24 V, 0.4 A source, and the incremental encoder provides 2,500 increments per revolution for position feedback. When dynamic demands rise, the motor can reach a theoretical speed ceiling of 5000 rpm and supply up to 0.95 Nm of peak torque for short periods. The brake supports load holding at standstill, while the encoder and short-term torque capability help maintain controlled motion during indexing and short positioning moves.