The MRC (SKF) 205FFS is a special deep groove bearing intended to replace older bearing arrangements that originally relied on felt seals for contamination exclusion.

Instead of depending on a separate felt seal arrangement, the bearing incorporates double contact seals directly into the bearing assembly. This provides a more integrated solution for retaining lubricant and reducing ingress of dust, dirt, and moisture.

The bearing uses:

Bore Diameter: 25.00 mm

Outside Diameter: 52.00 mm

Outer Ring Width: 15.00 mm

Inner Ring / Overall Width: approximately 16.70 mm

Approximate inch dimensions:

Bore: 0.9843 in

Outside Diameter: 2.0472 in

Outer Ring Width: 0.5906 in

Overall Width: approximately 0.6575 in

The extended inner ring is an important feature. It projects slightly beyond the outer ring width and can provide:

• Additional shoulder contact area
• Improved axial positioning
• Greater sealing support
• Compatibility with older felt-seal-style machine arrangements

This special geometry must be considered when selecting a replacement.

⚙️ Applications

• Industrial electric motors
• Agricultural machinery
• Conveyors
• Fans and blowers
• Pumps
• Gearboxes
• Mechanical transmission equipment
• Dusty industrial environments
• Legacy machinery originally using felt seals
• General maintenance and overhaul applications

🎯 Benefits

✔ Special felt-seal replacement design

✔ Single-row deep groove ball bearing

✔ Extended inner-ring / overall width of 16.70 mm

✔ Double contact seals

✔ Better contamination protection than ordinary metal shields

✔ Helps retain grease inside the bearing

✔ Suitable for dusty and demanding environments

✔ Supports radial and moderate axial loads

✔ Cross-reference assistance available

🧠 Technical Insight

• MRC 205FFS Bearing Reference
• Felt-Seal Replacement Bearing
• Single-Row Deep Groove Radial Ball Bearing
• 25 mm Bore
• 52 mm Outside Diameter
• 15 mm Outer Ring Width
• 16.70 mm Inner Ring / Overall Width
• Double Contact Seal Configuration

✅ Key Features

• MRC (SKF) Industrial Bearing
• Model 205FFS
• Felt-Seal Replacement Design
• Extended Inner Ring
• Double Contact Seals
• 14 kN Dynamic Load Rating
• 8 kN Static Load Rating
• Speed Rating up to 8,500 rpm with grease

📊 Specifications

Brand: MRC (SKF)

Model / Bearing Number: 205FFS

Bearing Type: Single-Row Deep Groove Radial Ball Bearing

Special Design: Felt-Seal Replacement Bearing

Bore Diameter (d): 25.000 mm

Outside Diameter (D): 52.000 mm

Outer Ring Width (B0): 15.00 mm

Inner Ring / Overall Width (B): Approximately 16.70 mm

Approx. Inch Equivalent: 0.9843 × 2.0472 × 0.6575 in overall

Rolling Elements: Ball

Number of Rows: 1

Raceway Type: Deep Groove

Inner-Ring Configuration: Extended / wider than outer ring

Closure Type: FFS – Double Contact Seals

Seal Construction: Synthetic-rubber contact sealing elements with metal support

Contamination Protection: Higher than typical non-contact metal shields

Lubrication Retention: High, due to contact sealing arrangement

Basic Dynamic Radial Load Rating (C): 14,000 N / 14.0 kN

Basic Static Radial Load Rating (C₀): 8,000 N / 8.0 kN

Speed Rating: Up to approximately 8,500 rpm with grease, subject to operating conditions

Load Capability: Primarily radial load with moderate axial-load capability in both directions

Lubrication: Grease-lubricated sealed configuration

Temperature Range: Depends on grease, seal compound, fit, and operating environment

Shaft Fit: Nominal 25 mm shaft; verify shaft tolerance

Housing Fit: Nominal 52 mm housing bore; verify housing tolerance

Installation Consideration: The extended 16.70 mm inner-ring width must be checked against shaft shoulders, spacers, axial retention, and adjacent components

Standard / Design Family: MRC Felt-Seal Replacement Bearing

🔁 Equivalent

Suitable replacement or cross-reference candidate for compatible:

• MRC 205FFS
• BCA / New Departure 88505
• Fafnir / Timken 205KLL2
• 25x52x16.7 mm Felt-Seal Replacement Bearing
• Double Contact Seal 205 Bearing
• Extended Inner-Ring Deep Groove Bearing
• 25 mm Bore Sealed Industrial Bearing
• 52 mm OD Felt-Seal Replacement Bearing
• Legacy Industrial 205 Bearing
• Special Sealed Deep Groove Bearing

The key point is that a standard 6205-type bearing with a nominal size of 25 × 52 × 15 mm should not automatically be considered a direct replacement.

The MRC 205FFS differs because its inner ring / overall width is approximately 16.70 mm, while the outer ring remains 15 mm wide.

This affects:

• Shaft shoulder position
• Spacer thickness
• Axial retention
• Seal contact location
• End play
• Adjacent component position
• Overall assembly geometry

The replacement should also match the double contact seal arrangement, load rating, lubrication, speed capability, cage, shaft fit, housing fit, and operating environment.

(Always verify the complete MRC 205FFS geometry and machine mounting arrangement before substituting a standard-width bearing.)

📦 Availability

✅ In Stock

🚚 Fast Delivery Available

🌎 Worldwide Shipping Available

📦 MOQ: 1 Piece

🏭 Suitable for motors, conveyors, pumps, gearboxes, fans, agricultural equipment, dusty industrial environments, and legacy machinery originally designed around felt-seal bearing arrangements.

📲 Contact via LINE ID: dusitrea

📧 Email: sales@seal4go.com

💬 Technical support available before ordering

🔍 Assistance available for cross-reference and equivalent part identification