The MRC (SKF) 210-MFF-G1 is not simply a standard 6210-style deep groove ball bearing. It belongs to the Max-Type or Filling-Slot bearing family, which incorporates filling notches in the raceways to permit additional balls to be assembled into the bearing.

Adding more rolling elements increases the total ball-to-raceway contact area and improves radial load capacity compared with a conventional deep groove bearing having the same basic envelope dimensions.

This makes the bearing particularly suitable for applications where:

• Radial loading is high
• Shaft size is fixed at 50 mm
• Housing size is fixed at 90 mm
• A 20 mm bearing width must be maintained
• Long-term mechanical loading is more critical than high axial-load capacity

The nominal dimensions are:

Bore Diameter: 50 mm

Outside Diameter: 90 mm

Width: 20 mm

Approximate inch dimensions:

Bore: 1.969 in

Outside Diameter: 3.543 in

Width: 0.787 in

The suffix can be interpreted as follows for this MRC bearing family:

210 – Medium-series MRC bearing size corresponding to a 50 mm bore

M – Max-Type, indicating filling slots and a higher ball complement

FF – Double shields, with metal shields installed on both sides

G1 – MRC-specific factory grease / internal execution designation. Because suffix conventions can vary by production period and catalog revision, the exact G1 definition should be verified from the original MRC technical reference when lubrication, clearance, or temperature specification is critical.

⚙️ Applications

• Heavy-duty electric motors
• Industrial gearboxes
• Mechanical transmissions
• Industrial pumps
• Conveyor drive systems
• Material-handling machinery
• Agricultural machinery
• Industrial fans and drives
• Machine tools
• Heavy radial-load OEM equipment

🎯 Benefits

✔ Higher radial-load capacity than a conventional standard-fill bearing

✔ Max-Type / Filling-Slot construction

✔ Increased number of rolling elements

✔ Double metal shields on both sides

✔ Standard 50 × 90 × 20 mm envelope dimensions

✔ Helps retain factory lubricant

✔ Suitable for heavy radial-load industrial applications

✔ Useful for legacy MRC equipment and overhaul work

✔ Cross-reference assistance available

🧠 Technical Insight

• MRC 210-MFF-G1 Bearing Reference
• Max-Type / Filling-Slot Construction
• 50 mm Bore Diameter
• 90 mm Outside Diameter
• 20 mm Width
• Higher Ball Complement
• Double Metal Shields
• Designed Primarily for Increased Radial Load Capacity

✅ Key Features

• MRC (SKF) Industrial Bearing
• Model 210-MFF-G1
• Max-Type Bearing
• Filling-Slot Raceway Design
• Double-Shielded FF Configuration
• 50x90x20 mm Dimensions
• Heavy Radial-Load Capability
• Cross-Reference Support Available

📊 Specifications

Brand: MRC (SKF)

Model / Bearing Number: 210-MFF-G1

Basic Bearing Number: 210

Bearing Family: Max-Type / Filling-Slot Ball Bearing

Bearing Type: Single-Row Deep Groove Ball Bearing with Filling Slots

Bore Diameter (d): 50 mm

Outside Diameter (D): 90 mm

Width (B): 20 mm

Inch Equivalent: Approximately 1.969 × 3.543 × 0.787 in

Rolling Elements: Ball

Number of Rows: 1

Raceway Type: Deep Groove with Filling Slots

Ball Complement: Higher than a conventional standard-fill deep groove bearing of comparable size

Suffix M: Max-Type / Filling-Slot execution

Suffix FF: Double Metal Shields

Suffix G1: Manufacturer-specific MRC grease / internal execution code; verify exact definition from original technical data where critical

Closure Type: Metal shields on both sides

Primary Load Capability: High radial-load capacity

Axial Load Capability: More limited than a conventional standard deep groove bearing because filling-slot geometry can restrict axial-load capability; verify application requirements before substitution

Internal Clearance: Verify complete MRC 210-MFF-G1 specification

Lubrication: Factory-greased / shielded execution; exact grease specification associated with G1 should be verified where lubricant compatibility or temperature is critical

Speed Rating: Depends on ball complement, filling-slot geometry, lubrication, shielding, load, fit, and operating temperature

Temperature Range: Depends on grease specification, cage, internal clearance, shields, and operating environment

Shaft Fit: Nominal 50 mm shaft; verify shaft tolerance and operating load

Housing Fit: Nominal 90 mm housing bore; verify housing tolerance and shoulder configuration

Installation Consideration: Confirm shaft/housing fit, bearing orientation, shoulder dimensions, axial retention, grease condition, and alignment before operation

Standard: Manufacturer-Specific MRC Max-Type Industrial Bearing

🔁 Equivalent

Suitable replacement or cross-reference candidate for compatible:

• MRC 210-MFF-G1
• MRC 210MFF
• MRC 210MF
• MRC 210MFG where manufacturer specification confirms compatibility
• 50x90x20 mm Filling-Slot Ball Bearing
• Max-Type 210 Bearing
• High-Radial-Load Ball Bearing
• Double-Shielded Max-Type Bearing
• Legacy MRC 210 Series Bearing
• Industrial 50x90x20 Bearing

For applications requiring the original high-radial-load Max-Type construction, the preferred replacement is another bearing with the same filling-slot / maximum-ball-complement design.

A standard bearing with the same 50 × 90 × 20 mm dimensions should not automatically be considered equivalent.

A conventional modern bearing may physically fit the same shaft and housing but can have different:

• Ball complement
• Radial load rating
• Axial-load capability
• Raceway geometry
• Shield configuration
• Lubrication
• Internal clearance
• Speed rating

If the application is not heavily loaded and the original Max-Type load capacity is no longer required, a standard bearing in the same dimensional envelope may be considered only after confirming the actual operating loads and speed.

(Always verify load requirements and the complete MRC 210-MFF-G1 execution before replacing it with a conventional deep groove bearing.)

📦 Availability

✅ In Stock

🚚 Fast Delivery Available

🌎 Worldwide Shipping Available

📦 MOQ: 1 Piece

🏭 Suitable for heavy-duty motors, industrial gearboxes, pumps, conveyors, transmissions, material-handling equipment, machine tools, and machinery requiring increased radial-load capacity in a 50 × 90 × 20 mm bearing envelope.

📲 Contact via LINE ID: dusitrea

📧 Email: sales@seal4go.com

💬 Technical support available before ordering

🔍 Assistance available for cross-reference and equivalent part identification