In addition to being CSA certified under the File Numbers noted below, our 143T through 449T pump motors, where applicable, are UL Listed as Fire Pump Motors under UL File No. Proof UL File No. CSA File No. Proof UL File No. CSA File No.
Motors come with either sleeve bearings, ball bearings, or roller bearings.
Sleeve bearings are more economical and quieter than ball. Ball bearings carry heavier loads and can withstand more severe applications. Roller bearings are used in large motors for belted loads. Belting data must be provided on all belted applications. For shaft up applications, contact your Marathon Electric Sales Engineer, Representative, or local Marathon Electric Distributor.