Deep Groove Ball Bearings SKF 6305

At a glance: SKF 6305 single-row deep-groove ball bearing, dimensions 25x62x17 mm, open design for direct lubrication and high speeds.

The 6305 deep groove ball bearing is a versatile rolling bearing made from standard bearing steel (100Cr6) in the SKF Explorer design. With a bore of 25 mm, an outside diameter of 62 mm and a width of 17 mm, the unit accommodates both radial and axial loads in both directions. As an open variant without integrated sealing washers, this bearing allows direct access of oil or grease from the machine housing. The dimensionally stable sheet steel cage guides the rolling elements reliably, even at varying speeds.

What is the 6305 deep-groove ball bearing suitable for?

This rolling bearing is primarily used in units where a central lubrication circuit or housing lubrication is in place. Its use is recommended in protected installation spaces with external sealing. As it does not use ablative seals, the bearing operates with low rotational resistance, which keeps heat build-up to a minimum. The material is designed for operating temperatures ranging from –20 to +120 degrees Celsius. The Explorer version supports uniform power transmission during continuous industrial operation.

What are the key features of the 6305 open deep-groove ball bearing with standard bearing clearance?

The P0/PN manufacturing tolerance class (corresponding to ABEC 1), combined with standard radial clearance, provides optimised running characteristics for standard installation situations. The existing bearing clearance compensates for minor thermal expansion without compromising shaft guidance. As the unit is of open design, external housing seals provide protection against foreign particles and lubricant loss. The cylindrical outer ring, which has no flange or groove, can be fitted directly into cylindrical mounting bores.