We offer a large assortment of metric motors by manufacturers such as  Siemens, Bauknecht, Brooks/Hansen, Weinig and others.  We have motors with RPM from 510 to 3600 and available in several voltages..  We have a few brake motors available.  Call for details.  704-528-3513  Prices vary depending on horsepower and status of brake versus non-brake motor.  We also offer invertors to provide braking for your existing motors