Deep Groove Ball Bearings SKF 6305 -2RS1/C3

The 6305 -2RS1/C3 deep groove ball bearing, measuring 25x62x17 mm, provides protection against contamination and compensates for thermal expansion during operation.

The single-row deep groove ball bearing 6305 -2RS1/C3 from SKF primarily accommodates radial forces as well as axial loads in both directions. Manufactured from standard rolling-element bearing steel 100Cr6 with a cylindrical outer ring without a flange or groove, this design complies with the standard tolerance class P0/PN or ABEC 1. Thanks to the seals on both sides, the lubricant remains inside the bearing, which reduces maintenance requirements in industrial drives.

In which applications is the 6305-2RS1/C3 deep groove ball bearing used?

This rolling bearing is suitable for designs subject to continuous radial loads where dust, moisture or contaminants may be present. Typical applications include general mechanical engineering and rotating drive units. The sealed design protects the raceways from the ingress of foreign particles, whilst the integrated sheet steel cage keeps the rolling elements at a uniform distance from one another, even during dynamic rotational movements. Thanks to the double-sided sealing, the lubricant remains confined to the contact zones.

What function do the seal and the C3 bearing clearance fulfil during operation?

The combination of seals that slide on both sides (2RS1) and a slightly increased radial clearance (C3) is designed for operating conditions involving temperature differences. If the shaft and inner ring heat up during operation, the increased radial clearance helps to prevent the rolling elements from becoming stressed. At the same time, the seal lips seal off the internal space from dirt particles within the permissible temperature range of -20 to +120 degrees and support the reliable running of the rolling elements.