Product Overview: The RN 219 Cylindrical Roller Bearing Inner Ring
The RN 219 is a precision-engineered inner ring designed for use with cylindrical or needle roller bearings. With key dimensions of a 95mm bore diameter, 115mm outer diameter, and 35mm thickness, this component provides a hardened and ground raceway for rollers in applications where the shaft cannot be practically or economically prepared to serve as a direct raceway. It is a critical part of our Cylindrical Roller Bearings component range, offering a versatile solution for robust bearing arrangements.
As a separable component, the RN 219 inner ring allows for simplified mounting and maintenance. It is typically paired with a roller and cage assembly, where the housing bore itself functions as the outer raceway. This design is ideal for creating compact, high-capacity bearing systems in demanding industrial environments. Explore our full catalog of Inner Rings and bearing components to find the perfect solution for your machinery.
Key Features of the RN 219 Inner Ring
- Precision Ground Raceway: Ensures low friction, smooth rotation, and optimal load distribution for the rollers.
- High-Quality Bearing Steel: Manufactured from hardened, high-purity steel for exceptional durability, wear resistance, and service life.
- Enables Use on Soft Shafts: Allows for the use of high-capacity roller bearings on shafts that are not hardened and ground, saving on manufacturing costs.
- Separable Design: Facilitates easier and more convenient mounting, dismounting, and inspection of the bearing assembly.
- Standardized Dimensions: Produced to strict industry standards for dimensional accuracy, ensuring interchangeability and proper fit.
- Compact Arrangement: Enables a bearing design with a smaller radial cross-section, ideal for space-constrained applications.
Common Applications
- Industrial Gearboxes: Provides a reliable raceway for gear-supporting shafts, enhancing performance and longevity.
- Heavy-Duty Pumps and Compressors: Used in rotating assemblies to support high radial loads where shaft hardening is not feasible.
- Construction and Mining Equipment: Essential in transmissions, planetary gear sets, and hydraulic motors of heavy machinery.
- Machine Tool Spindles: Offers the precision and rigidity required for high-speed and high-accuracy machine tool applications.
- Printing Machinery: Supports rollers and cylinders, ensuring consistent and smooth operation.
- Agricultural Machinery: Employed in various implements and vehicle transmissions to withstand harsh operating conditions.
- Automotive Transmissions: Commonly used in planetary gear arrangements to provide durable raceways for needle rollers.
Benefits of Using the RN 219
- Cost-Effective Solution: Eliminates the need for expensive shaft hardening and precision grinding processes.
- Enhanced Shaft Lifespan: Protects the shaft surface from direct contact with rollers, preventing wear and damage.
- Increased Design Flexibility: Allows engineers to create compact and efficient bearing systems without compromising on shaft material or treatment.
- Simplified Maintenance: The separable nature of the inner ring makes inspection and replacement of bearing components straightforward.
- Improved Machine Reliability: Provides a consistent, high-quality raceway, leading to more predictable bearing performance and fewer failures.
- Versatile Pairing: Can be combined with various standard needle or cylindrical roller and cage assemblies to meet specific application requirements.
