Deep Groove Ball Bearings FAG 608 -C3

The FAG 608-C3 deep-groove ball bearing combines compact dimensions of 8 × 22 × 7 mm with a slightly increased radial clearance for temperature-sensitive shaft mountings.

The single-row deep groove ball bearing 608-C3 from FAG is designed primarily to accommodate radial loads as well as low axial forces at high speeds. Manufactured from standard rolling-element bearing steel 100Cr6, this component is characterised by precise running characteristics in tolerance class P0. The sheet steel cage guides the rolling elements between the raceways with minimal vibration. Design engineers use this variant in compact devices and small drives where precise guidance within a confined installation space is essential.

What is the 608-C3 deep groove ball bearing suitable for in industrial applications?

The open deep-groove ball bearing 608-C3 proves particularly effective in compact rotary axes operating at medium to high speeds. Typical applications include small drives, compact axes and precision mechanical assemblies. As there are no abiding sealing discs to generate frictional heat, the bearing starts up with low friction.

In clean housings or oil-lubricated assemblies, the lubricant can be supplied unhindered. Maintenance engineers appreciate the straightforward relubrication during routine maintenance work.

What effect does the C3 bearing clearance have on the 608 deep-groove ball bearing?

The designation C3 indicates a slightly increased radial bearing clearance compared with the standard version. This additional operating clearance compensates for thermal expansion when the shaft or inner ring heats up during operation, without the bearing becoming stressed. At the same time, the additional clearance helps to prevent seizing when fits with a fixed interference fit are selected.

During assembly, the open design must be taken into account: such designs require an external housing seal to protect against dirt particles, ensuring that the raceways remain protected.