FAG 22311E1K.C3 – 55 mm Tapered Bore Spherical Roller Bearing

FAG 22311E1K.C3 – 55 mm Tapered Bore Spherical Roller Bearing

The FAG 22311E1K.C3 is a high-performance, self-aligning spherical roller bearing built for extreme loads and demanding operating conditions. Its unique design allows it to accommodate significant shaft misalignment and deflection without impacting its performance. The tapered bore (K suffix) and larger-than-standard C3 internal clearance make it a specialized solution for heavy machinery where thermal expansion and high loads are a concern.

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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 spherical roller bearing, which is designed with two rows of symmetrical rollers that freely align themselves on a spherical outer raceway. This self-aligning capability allows the bearing to tolerate considerable shaft misalignment and deflection, making it ideal for applications with bending shafts or mounting errors. The 22311E1K.C3 part number provides a wealth of information: the 223 series indicates its heavy-duty design; the E1 suffix denotes a reinforced design for enhanced load capacity; the K suffix signifies a tapered bore with a 1:12 taper, requiring an adapter sleeve for mounting; and the C3 clearance indicates a larger-than-normal internal clearance to accommodate thermal expansion. This combination of features makes it a robust and reliable choice for the most challenging applications.

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Technical Specifications

• Manufacturer: FAG (part of the Schaeffler Group)
• Part Number: 22311E1K.C3
• Bearing Type: Spherical Roller Bearing
• Dimensions:
  • Bore Diameter (d): 55 mm
  • Outer Diameter (D): 120 mm
  • Width (B): 43 mm
• Dynamic Load Rating (C): 265 kN
• Static Load Rating (C0): 260 kN
• Internal Clearance: C3
• Mounting: Tapered Bore (K suffix)
• Weight: 2.3 kg
• Also Known As: FAG 22311, 22311-E1-K-C3, 22311-E1K, 55x120x43mm Bearing

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Key Features & Benefits

• High Load Capacity: The reinforced “E1” design is capable of handling extremely heavy radial and axial loads.
• Self-Aligning Capability: Tolerates significant shaft misalignment, reducing stress on the bearing and extending its service life.
• Accommodates Thermal Expansion: The C3 internal clearance prevents seizing in high-temperature applications.
• Durable & Robust: Designed for reliability in harsh conditions and heavy-duty machinery.