Bearings for Underwater Applications


KMS bearings made from engineered polymers and 316 stainless steel can run in and around water without the worry of corrosion or lubrication.  KMS polymer materials have low water absorption and offer good wear properties for long life. KMS polymer races are more forgiving than metal and allow particles to flow in and thru the bearing. KMS bearings made from food and medical grade 316 stainless have higher corrosion resistance than conventional steel or 440c stainless bearings thereby preventing rust and bearing lock up. 


KMS Bearings’ expertise in water flow through bearing design was developed through 30 years of experience working with robotic pool cleaners and rotating spa jet manufacturers. This expertise enables KMS to design the best bearing construction for your underwater application with confidence.

A combination of the right materials and Flow-Thru Technology™ - KMS' exclusive anti-clogging bearing design, delivers superior underwater performance.

Contact KMS today to learn more about what we can do for your underwater application!

Plastic Vs Steel

Lightweight: Plastic is five times lighter than steel, thereby reducing the weight and energy to move them.

Read all the benefits of Plastic vs Steel Bearings