Throughout my years of working in the power transmission field, I have seen many new designs and requirements for bearings – some from regulation changes and some from customer expectation. I specifically selected this topic because in many cases a bearing will be the least expensive part that costs you the most. This can be calculated with the cost of downtime, or simply the hassle of getting to the bearing in the first place.
The demand for specialized bearings that provide high performance and improved running life has increased substantially. This has happened by changes in material and bearing design, plus lubrication options. I also see a growing need for these solutions which provide corrosion resistance while meeting regulatory guidelines.
Rumsey offers a wide variety of specialized products, but I want to point out a couple specific items and their advantages:
Housings are constructed of 300 grade stainless steel and hand-polished to minimize surface roughness. These also have a solid base design to eliminate gaps. The rings, balls, retainer, slinger, and set screws are also all designed to meet the environmental requirements.
If you need a thermoplastic option with great dimensional stability these are a good option. The main bearing has all the same design characteristics of the stainless units, but the base is designed to have beneficial electrical, thermal, and of course corrosion resistance.
In some cases stand-out units are required, then KML has a series rated to IP69K when used with appropriate seals and cap. Caps are rated to stay in place with 1500PSI wash-down, the standoff is designed for a half inch cleaning corridor behind the mounting area, and the seals are there to keep everything bad out of the bearing.
Last and not least are lubrication options. If two pumps of grease are good, more must be better, right? K-Poly is a food service grade solid lubricant option from KML that allows for life lubrication and long service life. If you have bearings in tough to reach areas, or they do not get appropriate maintenance, this is a perfect option. Depending on selection – the solid lubricant can span from -65F to 350F.
These are just a few options that stand out to me today. There are a lot of options in the bearing market, not to mention all the other manufacturers and applications I see daily. Our PT team would be happy to help with selections and pointers.