Deep Groove Ball Bearings FAG 6218 -2RSR

The FAG 6218 -2RSR deep groove ball bearing, measuring 90x160x30 mm and featuring a ground seal on both sides, protects the raceways from dirt and moisture.

The FAG 6218-2RSR single-row deep groove ball bearing is designed for industrial applications subject to radial forces and moderate axial loads. Manufactured from standard rolling-element bearing steel 100Cr6, this bearing is characterised by high dimensional stability. Thanks to its main dimensions – a 90 mm bore, 160 mm outside diameter and 30 mm width – this version is suitable as a replacement component during maintenance work or for new designs in mechanical engineering. The integrated sheet steel cage guides the rolling elements through the raceway system with minimal vibration.

What loads is the 6218-2RSR deep groove ball bearing designed to withstand?

This deep-groove ball bearing is suitable for designs and shaft mountings in general mechanical engineering where primarily radial loads and moderate axial forces occur. Thanks to the standard radial clearance (CN), the component operates smoothly at balanced operating temperatures between –20 and +100 degrees. Design engineers prefer to use this version in assemblies and industrial drives with a 90 mm shaft diameter where a sealed bearing arrangement is required.

What protection does the 2RSR seal offer during operation?

The designation 2RSR stands for contact-type sliding seals made of elastomeric material, fitted on both sides. These sealing lips seal off the interior of the bearing against the ingress of dust, dirt particles and splash water. At the same time, they retain the grease within the bearing housing, which reduces the need for relubrication. When selecting the design, bear in mind that the friction generated by the sliding seal affects heat build-up; therefore, the permissible temperature range of –20 to +100 degrees should not be exceeded.