New Assembly Process for Short Cylindrical Roller Bearings Achieves Breakthrough Accuracy

The new process, now standard in high-grade bearing assembly lines, focuses on ensuring high precision across multiple dimensions. With an Outer Diameter (OD) range of Φ30-120mm, the process demonstrates versatility across a variety of bearing sizes. Key operational parameters have been optimized, notably with a cycle time (CT) of less than or equal to 18 seconds. This improvement in processing time ensures faster output while preserving the integrity and precision of each individual bearing.

To guarantee consistency, every component undergoes rigorous inspection against the strictest of standards. The Inner and Outer Ring (IR & OR) raceway groove measurement is precise to within an error margin of just 1μm, an extraordinary level of accuracy critical to the bearing’s performance. This exactitude in measurement ensures the raceway grooves align perfectly, allowing the rollers to roll smoothly without deviations that could lead to uneven wear or premature failure under heavy loads.

Similarly, the IR & OR plane height error is maintained at a 1μm tolerance, reducing risks associated with height discrepancies that could disrupt the alignment during operation. The raceway width measurement error is also held at a tight 1μm tolerance, ensuring consistent roller path alignment. These precision standards prevent any structural imbalances, thus optimizing load distribution and enhancing the durability and life span of the bearing.

One of the most remarkable aspects of this short cylindrical roller bearings assembly process is the finished clearance measurement error, also controlled within 1μm. Maintaining this strict clearance tolerance allows the bearings to operate efficiently even in high-speed or heavy-duty applications where minimal clearance variation is critical. By achieving this level of precision, the newly assembled bearings reduce frictional resistance, lower operating temperatures, and significantly improve energy efficiency.