Deep Groove Ball Bearings SKF 6309 -2Z

The SKF 6309-2Z deep groove ball bearing, measuring 45x100x25 mm and featuring cover plates on both sides, provides protection against dirt particles.

The 6309-2Z deep groove ball bearing is a single-row rolling bearing from SKF in the Explorer series. It primarily accommodates radial loads whilst also supporting axial forces in both directions. With a bore of 45 mm, an outside diameter of 100 mm and a width of 25 mm, this standardised unit is suitable for mechanical engineering and maintenance. It is manufactured from standard roller bearing steel 100Cr6, which gives the raceways and balls high dimensional stability during normal day-to-day operation.

In which installation scenarios does the 6309-2Z deep groove ball bearing prove its worth?

This rolling bearing is primarily used in rotating shaft mountings subject to predominantly radial loads. The rolling elements run with low vibration thanks to the guided sheet steel cage. As the cylindrical outer ring is manufactured without a flange or groove, the bearing can be fitted directly into smooth housing bores. It withstands both constant and varying loads during normal operation.

What is the advantage of the end shields on both sides (-2Z)?

The suffix -2Z denotes two non-contact gap seals made from profiled sheet metal on both end faces. These discs keep coarse dust and foreign particles out of the interior without generating additional friction or heat. The standard radial bearing clearance ensures proper rolling action after mounting on the shaft at operating temperatures between –20 and +120 degrees Celsius. The tolerance class P0/PN (corresponding to ABEC 1) serves as the basis for planning when selecting the fit.