1) Size: 12 ~ 80mm 2) Series: UCLP200, UCP200, UCP300, UCPH200, UCF200, UCF300, UCFS300, UCFL200, UCT300, UCFC200, UCHA200, UCFK200, UCFA200, UCC200, Technology details: Housed bearings (insert bearings) are basically deep groove ball bearings of series 62 and 63 which are sealed at both sides, have a convex sphered outside diameter on the outer ring, and have an inner ring - with the exception of two series - which is extended at one or both sides.