30234 7234E 30234JR Chrome Steel 170*310*57mm Single Row Cone and Cup Tapered Roller Bearings

Engineered in strict compliance with international standards (e.g., ISO 355, DIN 720), these single row cone-and-cup bearings feature exact dimensions: 170mm inner diameter (ID), 310mm outer diameter (OD), and 57mm width. Critical dimensions are controlled within a tolerance of ±0.005mm using advanced CNC machining and laser calibration technology, eliminating compatibility issues during installation. Whether you’re replacing worn bearings in heavy-duty gearboxes (for industrial mixers, large-scale extruders), large industrial axles (mining conveyor shafts, steel mill rolling machines), or high-capacity pumps (water treatment plants, oil refineries), or integrating them into new production lines, this precise fit ensures optimal alignment with shafts and housings. It avoids misalignment-induced friction (which wastes 38-48% of equipment efficiency) and prevents damage to adjacent components (shafts, housings, or high-performance seals), laying a solid foundation for consistent mechanical performance from the first use.