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Stainless gearboxes and gearmotors are offered in several designs that cover 95% of applications. All designs are 100% washdown duty with specific emphasis on cleanability. Inline Planetary Gearmotors feature an output shaft that is concentric with the motor input shaft. This makes for a cylindrical, very aesthetic, compact, and cleanable gearmotor. A planetary gearmotor may be supplied as foot mounted (typical for driving positive displacement pumps) or as a C-face or flange-mounted unit, as would be preferred for such applications as tank mounted mixers. Standard ratios are between 3:1 to 25:1, but extremely high ratios (1000:1 or more) are possible as well. Standard features include a #4 line finished T304 stainless housing, O-ring sealing of the casing, and double-lip Isomag shaft seals.

Right Angle Worm Gearmotors are selected when a compact, right angle drive is required and the ratio is between 5:1 and 60:1. Typical applications include positive displacement pump, mixer, and conveyor drives. Efficiency of worm gearmotors diminishes as ratio increases. The reduced efficiency results in increasing heat that must be passed to the surrounding atmosphere. As our gearboxes feature a smooth exterior surface for excellent cleanability, cooling becomes a limiting factor in worm gearbox capacity. The mechanical capacity will be significantly higher than the thermal capacity for the high ratio worm gearmotors. All ratings linked from the Right Angle Worm Series Page are based on the thermal (continuous) capacity of the gearbox. Standard design features include a #4 line finished T304 stainless housing for excellent cleanability, O-ring sealed bearing covers, and double-lip Isomag shaft seals.

Spiral Bevel Gearmotors are selected when the output shaft is to be at a right angle to the input shaft and the required ratio is between 1:1 and 4:1. They offer excellent efficiency and can also be furnished with C-face or flange-mount output faces. Typical applications include positive displacement pump drives and tank-mounted mixer drives where lower headroom exists. Standard design features include a #4 line finished T304 stainless housing for excellent cleanability, O-ring sealed bearing covers, and double-lip Isomag shaft seals.

Compound Planetary/Spiral Bevel Gearmotors are a combination of two of our popular gearboxes offering a greater variety of speed reduction than either gearbox alone.  Directly off the motor shaft is our standard Inline Planetary gearbox.  The shaft of this gearbox is then fed into a Spiral Bevel gearbox, housed in a unique tubular casing.  The resulting output is at a right angle to the motor shaft.  These boxes are offered for motors between 5 and 30 HP with output RPM ranges between 875 and 23 RPM.  Standard design features include a #4 line finished T304 stainless housing for excellent cleanability, O-ring sealed bearing covers, and double-lip Isomag or engineered teflon shaft seals.  Hollow-bore and solid shafts are available with this gearmotor.

Any of our gearboxes may be offered in a compound design to obtain the proper reduction for your application.