Deep Groove Ball Bearings SKF 6303

The SKF 6303 deep groove ball bearing is an open, single-row rolling bearing measuring 17 × 47 × 14 mm, designed for radial and axial loads.

As a single-row rolling bearing, the 6303 deep groove ball bearing is one of the tried-and-tested bearing types in mechanical engineering. This SKF design in the Explorer performance class is made from standard rolling-element bearing steel (100Cr6) and features a sheet steel cage. The open design has no integrated sealing washers. This makes it suitable for applications where external sealing is provided or where lubrication is supplied directly via an existing lubrication circuit.

What is the SKF 6303 deep groove ball bearing suitable for?

This deep-groove ball bearing primarily accommodates radial loads whilst also supporting moderate axial loads in both directions. Typical applications include rotating shafts in general mechanical engineering. Thanks to its open design, lubricating oil or grease can reach the raceways and rolling elements unhindered, which aids heat dissipation under appropriate operating conditions.

What are the key considerations regarding the open design and bearing clearance?

As this model is designed as an open bearing, the bearing housing requires protection against contamination and moisture during operation. The permissible temperature range is between –20 and +120 degrees Celsius. The standard radial bearing clearance provides an optimised operating clearance under standard operating conditions. With tolerance class P0 or ABEC 1 and an outer ring without a flange or groove, the unit can be fitted into suitable housing bores.