Product Description

The 1MS376A-QB-A1 is a stator for Bosch Rexroth 1MB motors. Features of 1MB motors include rated torque of up to 875 Nm, maximum speeds of up to 20,000 RPM, easy machine integration, large spindle cutoff and excellent running smoothness. 1MB motors are asynchronous motors that are maintenance-free and deliver high power density. For satisfying different requirements, nine motor sizes are available with different lengths and diameters. Typical applications for 1MB motors include main spindles of CNC machines and machine centers. The 1MS376A-QB-A1 can be used with motors that have a frame size of 376 and a frame length of A. The stator including an aluminum cooling jacket. The liquid coolant that flows through the jacket absorbs the heat dissipated in the stator and major part of the heat dissipated in the rotor.

The power absorbed by the liquid coolant is transferred to a superordinate coolant in the refrigeration unit. The electrical connection on the 1MS376A-QB-A1 is by means of a cable that is connected to the stated end with large output diameter. 1MS stators can be ordered with options including NTC resistors and PTC resistors. The ambient temperature range for motor operation is 0 to 40 degrees Celsius. The motor output derates if operated above 40 degrees Celsius and above 1000 meters altitude. If either the temperature or altitude exceeds recommended value, then the motor data provided in the documentation should be multiplied with the utilization factor and it should also be ensured that the reduce torque data does not exceed the torque that is required by the application. The ambient temperature range for motor storage is -20 to 80 degrees Celsius. The environmental protection rating of 1MB motors is IP00. This unit can be shipped globally with a one-year warranty period from Wake Industrial.