Exploded Motor View

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Double Sealed and lubed for life, all motor bearings feature Exxon PolyRex Grease for excellent water resistance and high temperature performance.

Our endbells start with quality castings that are machined to exacting tolerances. The exterior surfaces are machined all-over to ensure the highest level of cleanability.

A static conductive plastic cooling fan provides efficient airflow and a smooth surface, enhancing cleanability.

Deep drawn from 16 GA material, our Pharmaceutical Series Fan Shrouds feature a mirror finish for ultra cleanability.

The junction box is smoothly and continuously welded to the motor casing, providing a crevice-free and watertight joint. Other motors utilizing gaskets will always be susceptible to leakage and the relatively poor fit of the junction box, gasket, motor casing yields crevices for contaminants.

All motors and gear reducers manufactured by Stainless Motors, Inc. feature laser engraved nameplates. The engraving is done directly on the motor or gearbox body eliminating any potential for contaminant entrapment under a riveted nameplate. Engraving, rather than marking, ensures that all nameplate data will remain readable after years of service and washdowns.

The screw-on, O-ring sealed junction box cover provides a clean, tight closure for the junction box. There is no possibility of pinching a lead wire under the cover (yielding a major leak) as is the case with other motors bolted on covers.

Each endbell is designed and machined to hold a generously sized O-ring for an excellent endbell to motor casing seal. The combination of a precision machined groove and quality O-ring provides a sealed joint of much higher reliability than a crushed O-ring design or any sealant; even after thousands of temperature cycles and washdowns.

17-4 H1150 stainless steel provides our motors with shafts unmatched for strength and performance. Other motor shafts, manufactured from T303 stainless will quickly wear in the area of the shaft lip seals, promoting leakage, and early motor failure. Being magnetic, it also enhances the motor efficiency, resulting in energy savings and a cooler running temperature.

All motors feature a locked shaft-end bearing. Utilization of an internal snap ring eliminates the bolts (and bolt holes) found on other motors, which can leak.

High quality, domestically produced, Isomag mechanical shaft seals are standard on all pharmaceutical series motors. Food processing motors employ special engineered Radyne seals.

Iron and Copper, and lots of it! Windings found in our motors will invariably have more core iron and more copper wire than other motors. This increases efficiency, enhances cooling and provides for more robust performance when operated by inverter drives. Equally important is the insulation system employed. We utilize only the best inverter spike resistant wire, properly phase/phase insulate the coils, lace the endturns and do the numerous other subtle things required to produce an exceptional winding. All windings are class F minimum, and most motors operate within class B temperature rise. Pharmaceutical Series motors feature thermostats as well. A simple weight comparison will reveal how much more iron and copper are in our motors as compared to other brands.