Koyo Bearings 21309R FY Spherical Roller Bearing

Description:

The Koyo 21309R FY Bearing is a spherical roller bearing used to support heavy radial loads and moderate axial loads in industrial rotating equipment. Commonly installed in gearboxes, conveyors, crushers, mining equipment, pumps, paper mills, and heavy-duty machinery requiring reliable shaft support and misalignment compensation. Maintenance teams and system integrators use this bearing for equipment replacement, preventive maintenance, and restoration of smooth, dependable rotating performance.

Applications:

The Koyo 21309R FY Bearing is commonly used in industrial gear reducers, aggregate processing equipment, material handling systems, vibrating screens, fans, pumps, steel mills, and other heavy industrial machinery where high load capacity and self-aligning bearing performance are essential.

Technical Specifications:

• Brand: Koyo (JTEKT)
• Part Number: 21309R FY
• Product Type: Spherical Roller Bearing
• Bearing Design: Double-row spherical roller bearing
• Bore Diameter (d): 45 mm
• Outside Diameter (D): 100 mm
• Width (B): 25 mm
• Bearing Type: Self-aligning roller bearing
• Cage Type: Steel cage (series dependent)
• Dynamic Load Direction: Radial and moderate axial loads
• Lubrication: Grease or oil lubricated
• Suitable for high-load industrial applications
• Designed to compensate for shaft misalignment and housing deflection

Common Replacements:

• SKF 21309 E
• NTN 21309
• NSK 21309EAE4