Cylindrical Roller Bearings SKF N209 ECP

SKF N209 ECP single-row cylindrical roller bearing with a 45 mm bore, 85 mm outer diameter and a polyamide cage for radial support in mechanical engineering.

The SKF N209 ECP cylindrical roller bearing, as a single-row rolling bearing, can withstand high radial loads. With dimensions of a 45 mm bore, 85 mm outer diameter and 19 mm width, the component fits into standardised housings. The SKF Explorer version features an optimised internal design. As the bearing is of open design, lubricant reaches the rolling elements and raceways directly.

What is the N209 ECP cylindrical roller bearing suitable for as a non-locating bearing?

In shaft mountings, this design serves as a floating bearing, where the flangeless outer ring can be removed from both sides. This allows the rolling bearing to compensate for axial length changes in the rotating shaft during operation without any constraint. It is used in mountings subject to purely radial loads. The design counteracts axial stresses between the bearing positions and facilitates assembly thanks to the rings being fitted separately.

What are the distinctive features of the design with a polyamide cage and P6 running tolerance?

The polyamide cage guides the cylindrical rollers with low friction and is suitable for operating temperatures ranging from –30 to +120 degrees Celsius. The manufacturing process combines dimensional accuracy to tolerance class Normal (P0 or ABEC 1) with finer running accuracy to class P6 (ABEC 3). This reduced runout deviation ensures smooth running. When designing the application, it is important to ensure that the open bearing is protected from dirt by housing seals.