Product Description:

The 1MS160N-4C-A2/S010 stator is produced by Bosch Rexroth Indramat within the 1MB High-Speed Asynchronous Motors series. It forms the stationary winding section for frameless spindle motors used in machine-tool spindles and other high-speed machining axes where compact packaging is required. By generating the rotating magnetic field that interacts with a separate rotor, the stator converts inverter output into controlled torque and speed. This allows the motor assembly to deliver precise rotary motion in automated production equipment where installation space is limited and stable thermal behavior is important.

Its frame diameter is 160, providing enough core cross-section to handle high magnetic loading while still fitting standard spindle housings. The motor length code N indicates a medium active stack, which helps balance torque output with axial space. Winding variant 4C sets the slot fill and conductor size so the electrical characteristics match the intended drive profile. Thermal stability is supported by an integrated aluminum cooling jacket that circulates coolant around the lamination pack, and this liquid cooling arrangement helps keep winding temperature within insulation limits during continuous duty. Power and sensor leads exit as a 1.5 m loom through the non-drive end of the stator, which helps with cable routing inside the spindle cartridge.

The unit is suitable for third-party drives, so it can be paired with existing inverters when the electrical match is appropriate. Embedded protection devices, including NTC resistors, PTC resistors and bimetals, provide temperature-sensitive monitoring and trip functions that help protect the winding during overload conditions. It is a stator for 1MB Frameless Spindle Motor, so it fits modular rotor kits used in compact spindle assemblies. This layout supports integrated spindle designs that need accurate motor control without the bulk of a housed motor frame.