Heavy dirt accumulation, dust and swarf are commonplace for pillow blocks and fixed flange bearings. Constant lubrication and maintenance are therefore necessary. But this does not always have to be the case. Igus has developed lubrication-free alternatives using spherical components made of the high-performance plastic iglidur J, which can be fitted in a fabricated housing. The use of polymers prevents dirt and dust from settling in pillow blocks and fixed flange bearings.