SKF single row deep groove ball bearings 2RS with contact seals on both sides, 6004-2RSH/C3 20x42x12. Bearing series 60, 62, 63, 618, 619 are particularly versatile. They are simple in design, self-retaining, suitable for high to very high speeds and insensitive in operation and maintenance. Deep grooves and the narrow osculation between the grooves and balls enable them to absorb radial loads as well as axial loads in both directions, even at high speeds. The disc cage is made of sheet steel and is ball-guided. Main dimensions in accordance with DIN 625-1:1989, DIN 616:2000 and ISO 15:1998. Suffix: 2RS (2RS1/2RSH) Sheet steel reinforced contact seals made of acrylonitrile butadiene rubber (NBR) on both sides. C3 Bearing clearance larger than normal.