NILS Extreme Roller wheel kit with bearing PU + ABEC-7 (x4)

The PU CLEAR wheels NILS EXTREME are made from polyurethane. The main parameters of the wheels are hardness and diameter. The hardness of the wheels affects both driving comfort and grip on the ground. The PU-82A wheels provide good shock absorption and excellent adaptability to each surface. The diameter of the wheels directly impacts driving speed. Larger diameter wheels allow for higher speeds but do not offer the same maneuverability as smaller diameter wheels. The ABEC 7 bearing, made from high-quality carbon steel, ensures excellent hardness and durability. It is characterized by the lowest rolling resistance, resulting in the highest speed according to the American standard Annular Bearing Engineering Committee, abbreviated as ABEC. An important parameter of this bearing is the eccentricity, which refers to the circularity on the inner ring's track, measuring just 0.0025 mm.

Specification:

• Wheel hardness: 82A
• Quantity per pack: 4 pieces
• Bearing class: ABEC 7
• Quantity of bearings per pack: 8
• Number of spacers: 4
• Packaging: blister