Release time : 2015-06-12 10:05:06
The VA201 range of Y-bearing units suits applications where operating temperatures are between -40 and +250C and the VA228 series suits environments of between -150 and +350C.
SKF has released Y-bearing units that are optimise productivity and minimise costs in a diverse variety of industrial applications The robust units have been developed to withstand an extremely wide range of operating temperatures and aggressive fluids, gasses and particulate matter.
They require little or no lubrication, enabling users to reduce both maintenance requirements and costs.
The VA201 range of Y-water pump bearing units suits applications where operating temperatures are between -40 and +250C and the VA228 series suits more challenging operating environments of between -150 and +350C.
The Y-bearings supplied inside the housing units feature a spherical outer diameter.
This corresponds exactly to the concave seating face inside the unit, enabling alignment errors of up to +/-5 to be compensated, reducing installation time and optimising equipment performance.
Furthermore, the bearings themselves, which are capable of withstanding shaft speeds of up to 100rev/min, feature highly efficient seals designed both to protect the bearings and prevent the leakage of lubricants.
The VA228 bearings feature a specially developed coronet cage, constructed from graphite based material, which effectively acts as the lubricant for extended periods of operation, eliminating the need for conventional greases.
This makes the bearings an environmentally friendly option, as no harmful fumes or gases are produced, even at extreme temperatures.
The VA201 series bearings, for comparatively less demanding applications, use a conventional pressed steel cage.
This is filled with a high-temperature lubricating paste made from a mixture of polyalkylene glycol and graphite to offer excellent lubricating properties.
In addition, the Y-miniature bearing units are coated with zinc and yellow chromate for added protection against corrosion, while each housing bore is coated with lubricating paste and designed so that the effects of shaft or housing misalignment can easily be eliminated, regardless of temperature variations.
The units can also be specified with bore diameters of between 30 and 60mm and can be supplied as a plummer block assembly or with square or oval flange bearings , making them an extremely versatile solution.
The Y-bearing units are ideal for use in a diverse range of industrial applications in which components are subjected to extreme temperatures, such as ovens, heaters and fans.