Koyo KOYO6204-2RDC3 Deep Groove Ball Bearing

Product Description

The KOYO KOYO6204-2RDC3 is a 6200 series deep groove ball bearing engineered for moderate radial and low axial load applications. It is manufactured from high carbon, high chromium Japanese steel, providing consistent hardness and fatigue resistance across the bearing races and balls. This bearing features a 2RD double seal configuration, which is specifically designed for high-speed and reduced-drag applications while maintaining maximum sealing ability. The C3 designation indicates a larger internal radial clearance, making it well suited for applications where thermal expansion is a factor. Licensed HVAC, mechanical, and industrial technicians typically specify this bearing when replacing worn or failed components in rotating equipment.

This bearing is appropriate for a wide range of rotating machinery used in residential and commercial settings, including motors, fans, pumps, and drive assemblies. The 6200 series form factor is a widely used standard size across HVAC blower motors, small electric motors, and general mechanical equipment. The 2RD seal variant is preferred in environments where contaminants must be excluded and where minimizing rotational drag is critical for motor efficiency. Polyrex XM grease is factory-installed in all double-sealed configurations, providing extended lubrication life without requiring regreasing in the field.

Key Features

• High carbon, high chromium Japanese steel construction for durability and fatigue resistance
• 2RD double seal design for high-speed operation, reduced drag, and maximum contamination exclusion
• C3 internal clearance rating accommodates thermal expansion in operating conditions
• Factory-filled with Polyrex XM grease for extended lubrication life
• Designed for moderate radial and low axial load service

Compatibility

Designed as an OEM-style replacement bearing for rotating equipment requiring a 6200 series deep groove ball bearing with a 2RD double seal and C3 internal clearance specification.

Installation Notes

Bearing replacement is typically performed by licensed mechanical, HVAC, or electrical technicians. Always de-energize the motor or driven equipment and lock out the power source before removing the old bearing. Use a proper bearing puller and press or driver set to remove and install the bearing without applying force through the rolling elements. Do not mix bearing types or internal clearance classes within the same assembly, as mismatched clearances can cause premature failure.

Technical Specifications

• Series: 6200
• Seal Type: 2RD Double Seal
• Internal Clearance: C3
• Material: High carbon, high chromium Japanese steel
• Grease: Polyrex XM
• Load Type: Moderate radial, low axial

Standard Information

• Brand: KOYO
• Manufacturer Part Number: KOYO6204-2RDC3