The MRC (SKF) 113KSFF belongs to the MRC 100-KS Extra Light Series, a family intended for machinery where shaft diameter is relatively large compared with the available housing space.

Its dimensional envelope is:

Bore Diameter: 65.000 mm

Outside Diameter: 100.000 mm

Width: 18.000 mm

Approximate inch dimensions:

2.5591 × 3.9370 × 0.7087 in

This relatively thin cross-section is especially useful in equipment where designers need:

• Large shaft diameter
• Compact housing diameter
• Reduced bearing weight
• Limited axial installation space
• Low friction
• Good rotational-speed capability

The internal design is a single-row deep groove, non-fill-slot arrangement, meaning it does not use loading slots for inserting additional balls. This allows the bearing to support radial load and moderate axial load in both directions more naturally than a maximum-capacity filling-slot design.

⚙️ Applications

• Large-shaft electric motors
• Industrial fans and blowers
• Pumps
• Machine tools
• Compact gear assemblies
• Conveyor systems
• Mechanical transmissions
• Industrial drive equipment
• Agricultural machinery
• Legacy OEM equipment

🎯 Benefits

✔ Extra Light 100-KS Series construction

✔ Large 65 mm bore with compact 100 mm OD

✔ Thin 18 mm width

✔ Single-row deep groove design

✔ Non-fill-slot internal construction

✔ Supports radial and axial loads

✔ Double metal shields

✔ High-speed grease-lubricated capability

✔ Cross-reference assistance available

🧠 Technical Insight

• MRC 113KSFF Bearing Reference
• 100-KS Extra Light Series
• Single-Row Deep Groove Ball Bearing
• Non-Fill-Slot Construction
• 65 mm Bore
• 100 mm Outside Diameter
• 18 mm Width
• Double Metal Shields

✅ Key Features

• MRC (SKF) Industrial Bearing
• Model 113KSFF
• Extra Light Series
• Single-Row Deep Groove Construction
• Double-Shielded FF Execution
• 65x100x18 mm Dimensions
• Grease Speed Rating Approx. 6,300 rpm
• Cross-Reference Support Available

📊 Specifications

Brand: MRC (SKF)

Model / Bearing Number: 113KSFF

Bearing Series: 100-KS Extra Light Series

Bearing Type: Single-Row Deep Groove Radial Ball Bearing

Internal Design: Non-Fill Slot

Bore Diameter (d): 65.000 mm

Outside Diameter (D): 100.000 mm

Width (B): 18.000 mm

Approx. Inch Equivalent: 2.5591 × 3.9370 × 0.7087 in

Rolling Elements: Ball

Number of Rows: 1

Raceway Type: Deep Groove

Series Characteristic: Extra Light / thin cross-section

Closure Type: Double Metal Shields

Suffix FF / SFF: Double metal shields on both sides

Basic Dynamic Radial Load Rating (C): 33,800 N / 33.8 kN / approx. 7,600 lbf

Basic Static Radial Load Rating (C₀): 27,000 N / 27.0 kN / approx. 6,070 lbf

Grease Speed Rating: Approximately 6,300 rpm under suitable operating conditions

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

Axial Load Direction: Both directions within bearing/application limits

Lubrication: Grease-retaining shielded configuration

Contamination Protection: Metal shields help reduce entry of larger dust and debris

Internal Clearance: Verify original MRC specification

Cage: Verify actual MRC 113KSFF construction

Temperature Range: Depends on grease, cage, clearance, fit, speed, and operating environment

Shaft Fit: Nominal 65 mm shaft; verify shaft tolerance and interference

Housing Fit: Nominal 100 mm housing bore; verify housing tolerance and shoulder geometry

Installation Consideration: Confirm closure, internal clearance, lubrication, shaft/housing fit, shoulder dimensions, and operating speed before installation

Modern Dimensional Reference: 16013-series bearing envelope

🔁 Equivalent

Suitable replacement or cross-reference candidates include:

• MRC 113KSFF
• SKF 16013-2Z
• SKF 16013-ZZ market designation
• NSK 16013ZZ
• NTN 16013ZZ
• KOYO 16013ZZ
• 65x100x18 mm Deep Groove Ball Bearing
• 65 mm Bore Extra Light Bearing
• 100 mm OD Thin-Section Bearing
• Industrial 16013-2Z Replacement Bearing

Cross-Reference Comparison

The dimensional relationship is strong because the modern 16013 series uses the same nominal envelope:

65 × 100 × 18 mm

However, identical dimensions alone do not guarantee complete interchangeability.

Before substitution, confirm:

• Double-shield configuration
• Internal clearance
• Cage
• Grease specification
• Dynamic/static load ratings
• Speed capability
• Precision class
• Shaft fit
• Housing fit
• Operating temperature

A 16013-2RS version has the same basic dimensions but uses contact seals rather than metal shields and therefore may have different friction, speed capability, and contamination protection characteristics.

(Always verify the original MRC 113KSFF specification before selecting a modern 16013-series replacement.)

📦 Availability

✅ In Stock

🚚 Fast Delivery Available

🌎 Worldwide Shipping Available

📦 MOQ: 1 Piece

🏭 Suitable for electric motors, fans, pumps, machine tools, compact gear assemblies, conveyors, industrial drives, agricultural machinery, and OEM equipment requiring a 65 × 100 × 18 mm Extra Light bearing.

📲 Contact via LINE ID: dusitrea

📧 Email: sales@seal4go.com

💬 Technical support available before ordering

🔍 Assistance available for cross-reference and equivalent part identification