1MR160N-A061 Bosch Rexroth Indramat
Wake Industrial LLC is not an authorized distributor of this product.
Wake Industrial LLC is not an authorized distributor of this product.
MPN: R911274524
Ask for AvailabilityThe Bosch Rexroth Indramat 1MR160N-A061 is a rotor designed for the 1MB High-Speed Asynchronous Motors series. It features a frame size of 160, a rotor bore of 60.3 mm, and a mass of 12.9 kg. This rotor uses IC3W7 cooling mode, supports operation in ambient temperatures from 0 to 40 °C, and is protected by a rust-protection varnish.
Internal Product Review
The 1MR160N-A061 is a rotor for a 1MB frameless spindle motor, built with a step interference fit for precise mechanical integration. IC3W7 cooling compatibility and Thermal Class 155 (F) support dependable performance in demanding spindle applications. IP00 construction and rust-protection varnish make this rotor a strong choice for controlled industrial installations.
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Product Description:
The 1MR160N-A061 rotor is produced by Bosch Rexroth Indramat for the 1MB High-Speed Asynchronous Motors series. This component is the rotating core of a frameless spindle motor, delivering the mechanical interface that couples high-speed electromagnetic torque to the machine tool shaft. Within industrial automation, the rotor transfers the drive current supplied by an external stator into precise spindle motion, enabling milling, drilling, and grinding systems to run at commanded speeds without additional belt transmissions.
The rotor is intended for systems that employ the IC3W7 cooling mode, so it operates in a liquid-cooled stator housing that removes heat directly from the active parts. Its mechanical envelope belongs to 160 frame motors, giving it an outside diameter that fits standard spindle bearings. An internal 60.3 mm bore permits the stepped interference fit required to mount the shaft sleeve and to center tooling clamping devices. Dynamic response is influenced by a mass moment of inertia of 0.0267 kg·m², allowing rapid acceleration without excessive drive current. During assembly, the electrical connection is made through open-ended leads, and once mounted the rotor relies on a IP00 protection class because it is enclosed by the machine’s stator and housing.
A total weight of 12.9 kg keeps centrifugal forces within the limits of the laminations while still providing the magnetic mass needed for torque generation. Ambient conditions for operation range from 0 °C up to 40 °C, ensuring compatibility with typical plant climate control. Installation is approved up to 1000 m above sea level, so altitude-related air density changes will not impair heat dissipation. Thermal endurance is categorized under class 155 (F) insulation, giving the rotor material stack the ability to withstand prolonged temperatures associated with high-speed machining cycles without premature varnish degradation. A rust-protection varnish is applied to all exposed steel surfaces to resist coolant splash during assembly and service.
