Product Overview: The RN 204 Cylindrical Roller Bearing
The RN 204 is a single-row cylindrical roller bearing designed without an inner ring, suitable for a 20mm shaft diameter, with a 47mm outer diameter and a 14mm width. This specialized design is part of our comprehensive range of Cylindrical Roller Bearings. The RN 204 is intended for applications where the shaft itself can be hardened and ground to serve as the inner raceway. This configuration allows for a larger, more rigid shaft within the same envelope dimensions as a standard bearing, or a more compact design overall, making it an excellent solution for space-constrained applications requiring high radial load capacity.
By eliminating the inner ring, the RN 204 enables engineers to optimize machine design for greater strength and stiffness. It is manufactured to precise standards to ensure reliable performance and is a key component in various high-performance machinery. This bearing is the counterpart to the outer ring and roller assembly found in bearings like the NU 204, offering a versatile solution for robust engineering challenges.
Key Features of the RN 204 Bearing
- Inner Ring-less Design: Allows the shaft to be used as the raceway, enabling a more compact and rigid assembly.
- High Radial Load Capacity: The full complement of cylindrical rollers provides excellent capacity for heavy radial loads.
- Space-Saving: Its reduced cross-section is ideal for applications where radial space is limited.
- Increased Shaft Rigidity: Permits the use of a larger shaft diameter compared to conventional bearings, enhancing stiffness.
- Separable Components: The outer ring with the roller and cage assembly can be mounted independently of the shaft, simplifying installation and maintenance.
- Axial Displacement: Accommodates thermal expansion or contraction and minor axial shifts of the shaft relative to the housing.
- Precision Engineering: Manufactured from high-quality bearing steel for durability and smooth operation.
Common Applications
- Industrial Gearboxes: Used in transmission systems where high load capacity and rigidity are critical.
- Automotive Transmissions: Ideal for planetary gear sets and other compact, high-load automotive applications.
- Machine Tool Spindles: Provides rigid support for machine tool shafts, contributing to cutting accuracy.
- Pumps and Compressors: Supports rotating components in heavy-duty pumps, ensuring reliable operation.
- Construction Machinery: Employed in the drivetrains and hydraulic systems of heavy equipment.
- Electric Motors: Used in high-performance motors where shaft rigidity and compact design are necessary.
- Printing Presses: Ensures stable and precise rotation of rollers in printing machinery.
Benefits of Using the RN 204 Bearing
- Optimized Design: Facilitates a more robust and compact machine design by integrating the raceway into the shaft.
- Enhanced Performance: The increased shaft stiffness improves the overall accuracy and performance of the machinery.
- Reduced Component Count: Eliminates the need for a separate inner ring, simplifying the bill of materials.
- Cost-Effective Solution: Can reduce costs in applications where the shaft is already suitable for use as a raceway.
- Improved Reliability: High load capacity and robust design lead to a longer service life and reduced downtime.
- Simplified Assembly: The separable nature of the bearing makes mounting and dismounting processes more efficient.
