Deep Groove Ball Bearings SKF 4204 ATN9

The 4204-atn9 deep-groove ball bearing from SKF Rolling Bearings is an open, double-row bearing with a polyamide cage, an outer diameter of 47 mm and a width of 18 mm.

The 4204-atn9 deep groove ball bearing serves as a compact bearing unit designed to accommodate both radial and axial forces in both directions. As a double-row roller bearing, this component can withstand higher loads than single-row versions of comparable dimensions, even in confined spaces. Manufactured from standard roller bearing steel with a cylindrical bore, the bearing is suitable for industrial applications within a temperature range of -20 to +120 °C.

What is the 4204-atn9 deep groove ball bearing suitable for in operation?

Design engineers prefer to use double-row deep-groove ball bearings in shaft mountings where single-row versions reach their load-carrying capacity limits. Typical applications include compact installations with increased radial and axial load requirements acting on both sides. As this is an open bearing without sealing washers, its use requires an external housing seal as well as a targeted supply of lubricant – either oil or grease – from the surrounding system.

What function does the polyamide cage fulfil in this design?

The integrated polyamide cage guides the balls in both rows with low friction and promotes smooth running of the rolling bearing. Compared with solid metal cages, the lightweight material reduces the weight of the rotating components and dampens vibrations occurring during operation. In conjunction with the standard radial bearing clearance, this design enables reliable operating clearance under normal installation and temperature conditions of up to +120 °C.