SKF 6318/C3 – Deep Groove Ball Bearing

SKF 6318/C3 – 90 mm Deep Groove Ball Bearing

The SKF 6318/C3 is a high-quality, open deep groove ball bearing designed for applications where robust performance and high speeds are required. It features a larger-than-normal C3 internal clearance, which is ideal for environments with temperature fluctuations or for use with interference fits. This versatile and reliable bearing can accommodate both radial and axial loads, making it a standard choice for a wide range of industrial machinery.

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Quick Navigation

• About This Bearing
• Technical Specifications
• Key Features & Benefits

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About This Bearing

This product is a single-row deep groove ball bearing, one of the most common and widely used types of rolling-element bearings. The 6318 part number specifies its basic dimensions, including a 90 mm bore. The bearing is an open type, meaning it lacks seals or shields and is designed to be lubricated by an external system. The C3 suffix indicates a radial internal clearance that is greater than the standard clearance. This is a critical feature that prevents the bearing from binding or seizing under operating conditions where thermal expansion or a tight press fit would otherwise reduce the internal clearance.

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Technical Specifications

• Manufacturer: SKF
• Part Number: 6318/C3
• Bearing Type: Deep Groove Ball Bearing
• Dimensions:
  • Bore Diameter (d): 90 mm
  • Outer Diameter (D): 190 mm
  • Width (B): 43 mm
• Internal Clearance: C3
• Design: Open
• Dynamic Load Rating (C): 151 kN
• Static Load Rating (C0): 108 kN
• Weight: 4.9 kg
• Also Known As: 6318 C3, 90x190x43mm Bearing

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Key Features & Benefits

• Versatile Use: Capable of handling both radial and light axial loads, making it suitable for a wide range of general-purpose applications.
• Accommodates Thermal Expansion: The larger C3 clearance ensures stable and reliable performance in environments with temperature variations.
• High-Speed Capability: The open design and C3 clearance allow for high rotational speeds, especially in applications with oil lubrication.
• Robust Design: Part of the widely used 63-series, offering a good balance of load capacity and size.