Deep Groove Ball Bearings SKF 61826 /C3

The SKF 61826 /C3 deep groove ball bearing is an open, single-row thin-section bearing with dimensions of 130 x 165 x 18 mm and increased clearance.

The SKF 61826 /C3 deep groove ball bearing combines a large shaft diameter of 130 mm with a slim cross-section, measuring just 18 mm in width. As a single-row radial ball bearing made from standard rolling-element bearing steel 100Cr6, this component primarily withstands radial forces as well as moderate axial loads. Thanks to its open design without integrated seals, the lubricant in the housing can be freely selected and replaced. The built-in sheet steel cage guides the rolling elements with low vibration within a temperature range of -20 to +150 degrees Celsius.

In which applications does the 61826 /C3 deep groove ball bearing prove its worth?

Designs with limited radial installation space benefit from this narrow bearing series. Typical applications can be found in general mechanical engineering, in gearboxes or industrial plant where hollow shafts or large shaft diameters are guided. The bearing is fitted in clean environments where housing seals are designed to protect against the ingress of dirt particles. The open design is suitable for enclosed spaces with a central oil circulation system or targeted grease lubrication.

What does the designation C3 mean in relation to bearing installation?

The suffix /C3 indicates a slightly increased radial bearing clearance compared with the standard version. This increased clearance between the balls and raceways is necessary when temperature differences occur between the inner ring and outer ring during operation. If the shaft heats up more than the housing, the inner ring expands. The C3 clearance compensates for this thermal expansion as well as manufacturing-related oversizes in fits, thereby reducing the build-up of internal stress within the bearing.