The heavy-duty fully loaded cylindrical roller unit is designed for large equipment that can withstand extremely high radial loads and heavy axial loads. This series of bearings is based on double row fully loaded cylindrical roller bearings, with three integral flanges on the outer ring to accurately guide and position the roller assembly in the axial direction; The inner ring is equipped with two movable edge rings, and the outer and inner rings are interlocked and constrained in the axial direction through a roller group, so that the bearing can maintain a stable operating posture and excellent load-bearing performance even under composite loads caused by deflection or tilt.

In terms of sealing and structural integrity, the NNTR-2ZL series is equipped with laminated sealing covers on both sides, which are embedded in the shoulder grooves of the outer ring of the blocking edge to form a reliable sealing barrier, effectively preventing the intrusion of external dust, moisture, and pollutants, while significantly reducing the loss of internal lubricating grease. Adequate internal space is reserved between the two roller groups to store a large amount of lubricating grease, ensuring that the bearings maintain sufficient lubrication during long-term continuous heavy load operation, reducing friction temperature rise, and extending maintenance cycles. The corner ring extends outward beyond the edge, forming an inseparable cylindrical roller bearing structure, which is not only convenient for installation and handling, but also enhances the overall rigidity and protective ability of the bearing.

The NNTR-2ZL series is particularly suitable for working conditions that may generate heavy axial and radial loads due to skewing or tilting, such as large conveying systems, heavy engineering machinery, metallurgical equipment, and port machinery.

We specialize in producing and supplying various types of heavy-duty industrial roller bearings: four column rolling mill bearings, split bearings, self-aligning roller bearings, tapered roller bearings, thrust self-aligning roller bearings, and cylindrical roller bearings. Suitable for large mechanical equipment such as metallurgical steel rolling, mining crushing, engineering machinery, reducers, papermaking, ships, fans, etc., supporting standard models in stock and non-standard customization, providing original factory quality and testing reports, and supporting foreign trade exports.