Deep Groove Ball Bearings SKF 61900 -2Z

The SKF 61900 -2Z deep groove ball bearing, measuring 10x22x6 mm, offers a compact bearing solution with sheet metal covers on both sides, ideal for slimline designs.

This single-row deep groove ball bearing 61900 -2Z from SKF belongs to the space-saving series with a narrow cross-section. With a bore of 10 mm, an outside diameter of 22 mm and a width of 6 mm, the component primarily accommodates radial forces as well as moderate axial forces. Manufactured from standard roller bearing steel 100Cr6, this version features a robust sheet steel cage and the standard radial clearance for rotating machine components.

In which applications is the 61900-2Z deep groove ball bearing used?

Designs with limited radial installation space benefit from this design when the ratio between the shaft diameter and the housing bore is small. Typical applications include drives with compact installation dimensions or precision mechanical shaft bearings. The cover plates on both sides protect the lubricant inside the bearing whilst keeping coarse dirt and particles away from the raceway system. The permissible temperature range is from –20 to +120 degrees Celsius.

What characteristics does the 2Z cover plate offer in operation?

The designation -2Z stands for two non-contacting cover plates made from profiled sheet metal. Unlike abiding seals, these gap seals do not generate any additional frictional resistance, which means the bearing rotates smoothly and temperature rise remains low. Manufacturing is carried out to tolerance class P0/PN (equivalent to ABEC 1) with a cylindrical outer ring without a flange or groove. For installation, it is recommended to position the bearing carefully without applying force via the rolling elements.