3476/3420 RICH | Single Row Tapered Roller Bearing 31.75 x 79.375 x 29.37 mm

Technical Specifications:

• Product Type: Single Row Tapered Roller Bearing
• Model Designation: 3476 / 3420
• Brand: RICH
• Bore Diameter (d): 31.75 mm (1 1/4 inch)
• Outer Diameter (D): 79.375 mm (3 1/8 inch)
• Total Width (T): 29.37 mm
• Inner Ring Width (B): 29.771 mm
• Outer Ring Width (C): 23.812 mm
• Cage Material: Steel
• Weight: 0.8 kg
• Country of Origin: China

The 3476/3420 RICH is a high-precision single row tapered roller bearing engineered to support significant combined radial and axial loads. With inch-series dimensions of 31.75 mm bore, 79.375 mm outer diameter, and 29.37 mm total width, this bearing is designed for superior performance in heavy-duty automotive and industrial driveline systems where high structural stiffness is a requirement.

The tapered roller geometry ensures uniform load distribution across the raceways, effectively reducing friction and heat generation during high-torque operation. The separable design — consisting of the cone (inner ring assembly) and the cup (outer ring) — allows for independent installation and precise adjustment of internal clearance or preload. This adjustability is critical for maintaining the operational integrity and longevity of heavy machinery axles and gearboxes.

Built with a robust steel cage and manufactured to meet rigorous dimensional and functional tolerances, the 3476/3420 RICH provides reliable long-term performance. Its heavy construction (0.8 kg) reflects its capability to withstand the stresses of demanding mechanical environments, ensuring stable and vibration-free rotation.

Key Performance Advantages:

• High Combined Load Support: Optimized to manage simultaneous radial and thrust loads in one direction.
• Separable Construction: Simplifies mounting, inspection, and maintenance procedures in complex housings.
• Superior Structural Rigidity: Designed with high-grade steel to resist deformation under heavy operational stress.
• Precision Roller Engineering: Minimizes frictional torque and enhances overall powertrain efficiency.
• RICH Engineering Excellence: Manufactured to provide a perfect aftermarket fit for standard inch-series tapered applications.

Typical Applications:

• Industrial gearboxes and high-torque speed reducers.
• Agricultural machinery final drives and axle assemblies.
• Heavy-duty vehicle wheel hubs and differential systems.
• Construction equipment requiring robust axial and radial support.

Transparency Note: This component is manufactured under the RICH brand. All dimensions, model references, and technical data are provided strictly for identification and compatibility purposes and do not imply affiliation, authorization, or endorsement by the referenced manufacturers.