FAG 6006-C-Z-C3 (-Z-C3) Kugellager (30x55x13)

At 30x55x13 mm and a unit weight of 0.117 kg, the installation envelope is fixed; further technical details are held in the specification table. This variant features increased radial clearance (C3). Point contact between ball and raceway keeps frictional torque low, which is why this type runs faster and cooler than any other rolling bearing.

The deep, closely conforming raceway grooves in the inner and outer ring capture the balls positively, so the bearing takes radial load and moderate axial load in both directions without a second bearing position to oppose it. Because the ball touches the raceway at a point, friction and heat stay low — the precondition for high speeds and for grease-for-life designs.

The limits follow from that same geometry: the small contact area caps load capacity against a roller bearing of equal size, and the bearing tolerates misalignment within narrow limits only, since angular error transfers straight into the raceway grooves. Seats in shaft and housing must therefore be aligned and geometrically accurate; where shaft deflection is expected, a self-aligning type belongs in that position.

The single shield runs without contact and holds back coarse contamination on its side; the open opposite side is left to the surrounding design, which seals it there or supplies the lubricant. The slightly increased radial clearance provides reserve for tighter fits and for temperature differences between inner and outer ring, as they occur on shafts that run warm.

Metal shield on one side — Dimensional/form-fit equivalent — verify suffix-level details for critical applications. Matching suffixes are also listed by SKF (Z), NSK (Z), NTN (Z) and NACHI (ZE).