Deep Groove Ball Bearings SKF 6304 -2Z/C3

The SKF 6304 -2Z/C3 deep groove ball bearing, with dimensions of 20x52x15 mm, offers protection on both sides via sheet metal shields and an increased bearing clearance of C3.

The SKF 6304 -2Z/C3 single-row deep groove ball bearing is designed primarily to withstand radial loads as well as moderate axial forces. Manufactured from standard rolling-bearing steel 100Cr6, this unit has a bore of 20 mm, an outside diameter of 52 mm and a width of 15 mm. The design complies with standard tolerance P0 or ABEC 1. Sheet steel shields fitted on both sides protect the raceways from coarse contaminants and retain the lubricant inside the bearing. The roller bearing is suitable for a temperature range of -20 to +120 degrees.

In which applications is the 6304 -2Z/C3 deep groove ball bearing used?

Designs involving rotating shafts often require compact components for radial loads. The 6304 -2Z/C3 deep groove ball bearing is suitable for bearing arrangements in general mechanical engineering where moderate axial forces and predominantly radial forces are present. The non-contact lip seals do not generate any additional friction, which is why this 20x52x15 mm deep-groove ball bearing runs smoothly even at higher circumferential speeds. The sheet steel cage guides the rolling elements evenly within the deep raceway.

What does the C3 clearance rating mean for the 6304 -2Z/C3 deep groove ball bearing?

The designation C3 indicates a slightly increased radial clearance compared with the standard version. The internal radial clearance is greater, which allows for the compensation of temperature-induced expansion of the shaft or housing during operation. This is recommended for tight fits and operating temperatures between -20 and +120 degrees. The increased clearance helps to prevent the bearing from becoming stressed due to operational heating and promotes quiet running under varying thermal conditions.