1MS160F-4B-A2/S010 Bosch Rexroth Indramat
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MPN: R911283410
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The Bosch Rexroth Indramat 1MS160F-4B-A2/S010 is a stator for the 1MB Frameless Spindle Motor series and features a frame size of 160 with a motor length code F. It utilizes liquid cooling through an aluminum cooling jacket and is equipped with NTC resistors, PTC resistors, and bimetals. This stator is suitable for use with third-party drives and includes a 1.5 meter connection cable conducted through the stator end.
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Product Description:
The 1MS160F-4B-A2/S010 stator is produced by Bosch Rexroth Indramat and belongs to the 1MB High-Speed Asynchronous Motors series. Acting as the stationary half of a frameless spindle assembly, it is pressed into the machine tool housing where it generates the rotating magnetic field that drives a matched rotor at very high speed. In automated machining centers, this subcomponent provides the electromagnetic torque source required for accurate cutting, drilling, and grinding cycles. Because it is supplied as the stationary element only, the surrounding spindle structure provides the final mechanical support for the completed assembly. This arrangement allows the motor section to be integrated closely with the shaft system instead of relying on a separate motor housing.
The stator uses liquid cooling for thermal management, so a closed circuit removes heat from the windings and keeps temperature rise low during high-speed duty cycles. Heat passes to the coolant through an aluminum cooling jacket, which also adds rigidity around the outside of the assembly. Motor leads exit through the rear by way of a 1.5 m loom, allowing direct connection to the drive without extra joints. The rear lead exit also helps keep cable routing away from the tool side of the spindle in compact machine layouts. Its dimensions follow frame size 160, giving an outside diameter compatible with standard machine bores, and its electromagnetic behavior is set by winding variant 4B, which sets the voltage constant and current rating for typical inverter outputs.
The unit is compatible with third-party drives, so it can be paired with inverters from multiple vendors. It has motor length code F, which balances torque production with available installation space in the spindle housing. Embedded NTC resistors, PTC resistors, and bimetals provide redundant temperature feedback, allowing the protection circuit to respond to changing thermal conditions. Using multiple sensor types also gives the system several ways to monitor abnormal heating during rapid acceleration or continuous cutting duty. It is delivered as a stator for a 1MB frameless spindle motor and is intended to be paired with a matching rotor and bearing arrangement in a custom spindle assembly.
