MD115B-N-011-N5M-180GB2 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat MD115B-N-011-N5M-180GB2 is a synchronous motor from the MDD Synchronous Motors series and has a protection category of IP65. It is equipped with an optical digital servo feedback system and a multiturn encoder, providing a position resolution of 2,097,152 increments per revolution. The motor features an electrically actuated release brake with a brake torque of 60 Newton meters and operates on 24 VDC.
Internal Product Review
The MD115B-N-011-N5M-180GB2 is a Bosch Rexroth Indramat MDD synchronous motor with IP65 protection and a Side B power connection. Digital servo feedback with a multiturn encoder and 2,097,152 inc/rev resolution support highly accurate positioning in demanding motion applications. A 4096 rev absolute range stands out as a strong advantage for repeatable servo performance.
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Product Description:
The MD115B-N-011-N5M-180GB2 is a synchronous servo motor manufactured by Bosch Rexroth Indramat and assigned to the MDD Synchronous Motors series. This electrically commutated unit converts drive output into precise rotary motion for positioning axes, handling modules, and similar automation stations. Its integrated multiturn feedback and brake make the motor suitable for installations that demand repeatable movement, secure shaft holding when power is removed, and compact mechanical interfaces within sealed machine frames. The motor is intended for closed-loop motion systems where accurate position retention and consistent startup behavior are required.
The spring-applied, electrically actuated brake is rated at 60 Nm, providing sufficient holding torque to lock vertical or high-load axes. It is powered by 24 VDC and draws only 1.5 A, so the control supply can originate from standard machine safety circuits. After a stop command, the friction plates engage within 30 ms; brake release occurs in 150 ms, a delay that must be considered during cycle planning. With a brake inertia of 32 × 10⁻⁴ kg·m², the brake adds only a limited rotational load to the shaft. The centering shoulder measures 180 mm, giving predictable runout when the housing is located in a precision bore. Dynamic balance complies with Class N, limiting vibration at high rotational speed and extending bearing life. Power leads exit on Side B to separate them from feedback wiring.
Servo positioning is monitored by an optical system that combines digital servo feedback with a multiturn encoder. The encoder resolves each revolution into 2,097,152 inc/rev, and it tracks an absolute range of 4096 rev, eliminating homing routines after power restoration. A molded flange and shaft seals yield a protection rating of IP65, allowing operation in environments with dust or water spray. The optical measuring principle also helps maintain stable position and speed information during demanding motion profiles.
