Deep Groove Ball Bearings SKF 608 -2Z/C3

The SKF 608-2Z/C3 deep groove ball bearing combines compact dimensions of 8 × 22 × 7 mm with protective shields and increased C3 bearing clearance for high speeds.

The 608 -2Z/C3 deep groove ball bearing is a single-row radial ball bearing made from standard rolling-element steel (100Cr6) with a bore of 8 mm, an outer diameter of 22 mm and a width of 7 mm. As an SKF Explorer variant, the bearing primarily accommodates radial loads as well as moderate axial loads. With a tolerance class of P0/PN (ABEC 1), this compact rolling bearing is suitable for both repairs and industrial mass production requirements.

In which applications is the 608 -2Z/C3 deep groove ball bearing used?

The 608 -2Z/C3 deep groove ball bearing is primarily suitable for compact shaft mountings operating at medium to high speeds in precision engineering and drive technology. Typical applications include compact devices, high-speed small drives and mechanical guides with limited radial installation space. The non-contacting cover plates reliably keep solid dirt particles out without generating additional braking torques or unnecessary frictional heat through grinding friction. At operating temperatures between –20 and +120 degrees, this single-row component operates smoothly and reliably.

What are the distinctive features of the C3 bearing clearance and the 2Z cover plates?

The C3 classification denotes a slightly increased internal radial bearing clearance compared with the conventional standard design. This increased operating clearance compensates for thermal expansion caused by operational heating or fit allowances when fitting the inner ring onto the shaft. The 2Z cover on both sides consists of profiled sheet steel discs, which are anchored to the outer ring on both sides. Unlike contact seals, these metallic gap seals do not cause any additional frictional resistance. A sturdy sheet steel cage guides the rolling elements at a defined distance within the cylindrical raceway and ensures even load distribution.