Deep Groove Ball Bearings SKF 6003 -Z/C3

The SKF 6003-Z/C3 deep-groove ball bearing, measuring 17x35x10 mm, offers compact dimensions, increased C3 bearing clearance and one-sided protection against dirt particles.

This single-row deep groove ball bearing 6003 -Z/C3 is designed primarily to accommodate radial forces as well as moderate axial loads in both directions. Manufactured from standard rolling-bearing steel 100Cr6, the Explorer version features dimensional accuracy to tolerance class P6 and running accuracy to P5. A dimensionally stable sheet steel cage guides the rolling elements within the cylindrical outer ring, which has no flange or groove. Thanks to its permissible temperature range of -20 to +150 degrees, the component is suitable for a wide range of industrial operating conditions.

What is the 6003-Z/C3 deep-groove ball bearing suitable for?

Design engineers prefer to use this ball bearing in rotating systems where there is a risk of contamination on one side, but the opposite side must remain accessible for lubricant supply. Typical applications include industrial bearing arrangements operating at high speeds and subject to varying radial forces. Thanks to its precise guidance, this design is suitable for shaft bearings that require smooth running and where single-sided shielding is required.

What are the advantages of the Z-cover and C3 clearance?

The factory-fitted Z-cover protects the inside of the bearing from dust on one side without contact, without generating additional friction or heat during operation. At the same time, the open opposite side allows for targeted relubrication via the housing. The increased radial clearance (C3) effectively compensates for thermal expansion of the shaft and housing at operating temperatures up to +150 degrees. Furthermore, the increased radial clearance helps to prevent the rolling elements from becoming stressed when fitted with a tight fit on the 17 mm shaft.