MRS160C-B061-NN Bosch Rexroth Indramat
Wake Industrial LLC is not an authorized distributor of this product.
MPN: R911292123
The Bosch Rexroth Indramat MRS160C-B061-NN is part of the MRS Synchronous IndraDyn H Motors series and features a motor size of 160 with a maximum mechanical speed of 6300 min-1. This open kit motor has an insulation class F, uses a compression joint for rotor mounting, and is protected with an IP00 rating. The rotor has an inside diameter of 61 mm, operates within an ambient temperature range of 0 to 40°C, and produces less than 75 dBA of sound pressure.
Internal Product Review
The MRS160C-B061-NN is an open kit motor rotor in the Bosch Rexroth Indramat IndraDyn H synchronous spindle line, featuring compression-joint mounting. A 6300 min-1 maximum mechanical speed supports high-performance spindle duty, while insulation class F adds welcome thermal margin. With operation rated for 0-40°C and sound pressure below 75 dB(A), this rotor stands out as a well-engineered choice for precise spindle systems.
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Product Description:
The MRS160C-B061-NN is a rotor supplied by Bosch Rexroth Indramat for the MRS Synchronous IndraDyn H Motors series. As a kit component, the rotor forms the rotating magnetic-field element of a synchronous spindle motor. Its open arrangement supports direct integration into the shaft assemblies of machine tools and automated spindle systems. This configuration allows the surrounding spindle structure to provide the bearings, feedback devices, and other supporting components required for controlled rotation.
The rotor has a motor size of 160 and an open kit-motor design, meaning it is supplied without a dedicated housing and can be clamped directly inside the spindle drum. Its IP00 protection rating provides no built-in protection against contact, dust, or moisture, so the surrounding machine enclosure must protect the assembly. The mechanical speed limit is 6300 rpm, which is the highest permitted operating speed before centrifugal loading becomes excessive. Insulation class F supports temperatures up to 155 °C in the associated motor insulation system, allowing sustained operation when the rotor is paired with a compatible stator. The motor assembly connects to the spindle drive system through a connection cable. Sound emission remains below 75 dB(A), keeping acoustic output within typical factory noise levels. Position feedback and bearing support must be supplied by the external spindle hardware because these elements are not incorporated into the rotor.
The permitted installation altitude extends to 1000 m above sea level, where standard dielectric and cooling conditions remain applicable. The ambient operating temperature ranges from 0 to 40 °C, preserving suitable thermal margins for the insulation system and mechanical fits. A rotor inside diameter of 61 mm allows the component to fit over the mating shaft while maintaining the required magnetic air gap. Final attachment uses a compression joint, which secures the laminated rotor stack through an interference fit without adding separate fasteners. The shaft and rotor surfaces must be prepared for uniform contact so the joint can transmit torque without introducing excessive imbalance. The surrounding spindle enclosure must also maintain the required alignment and protect the open motor components during operation.
