Deep Groove Ball Bearings SKF 61800 -2Z

The SKF 61800 -2Z deep groove ball bearing features compact dimensions of 10 × 19 × 5 mm and is protected on both sides by non-contact cover plates.

The 61800 -2Z deep groove ball bearing is characterised by a particularly narrow cross-section and is suitable for designs with limited radial installation space. Manufactured from standard roller bearing steel 100Cr6, this single-row bearing primarily withstands radial forces and supports moderate axial forces in both directions. Thanks to the integrated sheet steel cage and the standard radial clearance, the ball row runs smoothly within the specified temperature range of -20 to +120 degrees Celsius.

In which applications does the 61800 -2Z deep groove ball bearing prove its worth?

This compact design is primarily used where low radial overall heights and narrow cross-sections are required alongside precise shaft guidance. The bearing primarily supports radial loads and is suitable for applications involving moderate axial forces. Thanks to its cylindrical shape without a groove or flange, the outer ring can be fitted directly into suitable housing bores.

What is the function of the cover plates on the -2Z version?

The suffix -2Z denotes cover plates made of profiled sheet steel fitted on both sides. These plates form a tight sealing gap against the inner ring shoulders. They serve to make it more difficult for solid foreign particles to penetrate and to prevent the escape of lubricant. As the cover operates without contact, no additional friction occurs, which facilitates operation at high speeds with minimal heat build-up.