Полнокомплектные роликовые подшипники

Полнокомплектные роликовые подшипники

The full complement roller bearing process focuses on “cageless, high-load bearing performance,” utilizing precision machining to ensure stable, densely packed rollers. Высокопрочная подшипниковая сталь, устойчивая к усталости. is selected for its material, which undergoes vacuum refining to remove impurities, enhancing base material uniformity and impact resistance.

The rollers utilize a process consisting of “cold heading in one step, cylindrical surface grinding, and end face super-lapping.” Diameter tolerances are controlled to IT3, and end face parallelism is ≤0.002 mm, ensuring zero binding when closely packed. The ring raceways are machined using a five-axis CNC grinder, achieving geometric accuracy of IT4 and a roughness of Ra0.2μm, ensuring uniform roller contact.

Key components undergo full quenching and tempering, followed by cryogenic treatment, to prevent dimensional deformation under heavy loads. Dedicated assembly tooling ensures a close 1:1 roller arrangement and precisely controls radial clearance. The finished product undergoes static load and rotational accuracy testing before ultimately being suitable for heavy-load applications such as rolling mills and cranes, fully realizing the value of the “cageless, high-load density” process.