MST130C-0500-NS-N0CN-M303 Bosch Rexroth Indramat
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MPN: R911342658
The Bosch Rexroth Indramat MST130C-0500-NS-N0CN-M303 is part of the MST Synchronous Torque Motors series and features natural convection cooling with no cooling jacket. This motor is IP00 rated, uses a standard encapsulation, and comes with a KTY84-130 plus SNM-150 DK sensor package. It has a stator fastening thread size of M5 x 11 mm, 8 stator mounting holes, and a temperature class of 155.
Internal Product Review
The MST130C-0500-NS-N0CN-M303 is a Bosch Rexroth Indramat synchronous torque motor designed for natural convection operation without a cooling jacket. The KTY84-130 + SNM-150 DK sensor package adds valuable thermal feedback, and the encoder-free configuration supports streamlined direct-drive integration. Temperature class 155 and a 155 °C winding shutdown threshold highlight solid thermal capability.
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Product Description:
The MST130C-0500-NS-N0CN-M303 is a stator section produced by Bosch Rexroth Indramat for the MST Synchronous Torque Motors series. When mounted around an application-specific rotor, this component supplies direct-drive torque for rotary tables, printing cylinders, and other low-speed motion axes in industrial automation. Its frameless format simplifies machine integration by eliminating a conventional motor housing, and an external servo amplifier handles commutation because this model is supplied without an internal encoder.
This stator releases heat by natural convection, so airflow around the assembly must remain unobstructed. A protection category of IP00 means the windings are exposed during installation and must be enclosed by the machine. Process monitoring is handled by the integrated KTY84-130 + SNM-150 DK sensor pair, in which the KTY device monitors winding temperature and the switch sensor sends a discrete overtemperature signal. Electrical leads exit on the stator side with a larger outside diameter to ease routing toward the drive. Mechanical fastening uses tapped holes sized at M5 x 11 mm, and the laminated core includes 8 radial mounting holes that align with the machine flange. Standard encapsulation protects the coils against vibration and fills the slot area with resin to improve thermal conductivity.
The insulation uses thermal class 155, and the winding hotspot limit is 155 °C. The embedded switch activates at a caution level of 145 °C, providing an additional signal for temperature supervision. Because the unit is delivered without a cooling jacket, any duty cycle near these limits must be monitored through temperature feedback rather than liquid cooling. The absence of a motor-side encoder leaves position measurement to an external feedback device, so feedback technology can be selected to suit the required application accuracy while keeping the stator profile compact.
