FAG 22311 E1 C3 55x120x43 mm spherical roller bearing

Applications and Industrial Use

The FAG 22311 E1 C3 bearing is a high-performance spherical roller bearing designed for demanding industrial applications. With dimensions of 55 mm inner diameter, 120 mm outer diameter and 43 mm width, this bearing supports heavy radial loads and significant axial components in both directions thanks to its double-row roller design. The “E1” designation indicates an optimized internal structure for greater load capacity, while the “C3” clearance variant ensures increased internal clearance to accommodate shaft expansion or higher operating temperatures. This bearing is suitable for machine tools, conveyor systems, gearboxes, rolling mills and other heavy-duty equipment where high durability and reduced downtime are required.

Key Features & Benefits

• Enhanced load capacity - The E1 internal design employs improved roller geometry and increased contact area to deliver superior bearing life and performance.

• Increased internal clearance (C3) - The C3 version allows greater tolerance for thermal expansion and alignment variations, making it ideal for applications with dynamic conditions or elevated temperatures.

• Robust construction for industrial environments - Built by FAG with precision steel components and heavy-duty cages, this bearing offers long service intervals and high reliability in harsh operating conditions.

• Versatile integration - The standard size 55 x 120 x 43 mm enables straightforward replacement in existing bearing units or housing assemblies (“jednostka łożyskowa”, “obudowa łożyskowa”), reducing engineering time and cost.

• Optimised for industrial applications - Whether in material handling, rolling mill stands or heavy drives, this spherical roller bearing meets the expectations of maintenance teams and procurement in the B2B sector: high durability, minimal maintenance, and strong support.

Technical Specifications

• Type: Spherical roller bearing (double-row)

• Bore (d): 55 mm

• Outer diameter (D): 120 mm

• Width (B): 43 mm

• Internal clearance: C3 (greater than standard)

• Internal design: E1 (optimized for higher capacity)

• Typical applications: Industrial drives, conveyor systems, rolling equipment, heavy duty machinery

• Key search keywords: “FAG 22311 E1 C3”, “spherical roller bearing 55x120x43”, “industrial spherical roller bearing heavy load”, “bearing unit heavy duty industrial”.

• Related phrases: “łożysko kulkowe baryłkowe”, “wysoka trwałość”, “aplikacje przemysłowe”, “jednostka łożyskowa”, “obudowa łożyskowa”.

This product is intended for B2B buyers—maintenance engineers, system integrators and procurement professionals—who require a compact yet high-capacity bearing solution to support heavy equipment with dependable performance and minimal interruption to production.

FAQ

Q1: What does the “C3” clearance mean?
A1: The “C3” designation indicates a greater than normal internal radial clearance, which allows for thermal expansion, shaft misalignment and high-speed use. This helps improve service life in applications with elevated temperatures or variable loads.

Q2: Why choose the E1 design variation?
A2: E1 refers to an optimized internal structure within the cylindrical bore of the bearing, offering enhanced load capacity and improved durability compared to standard variants—making it ideal for industrial applications requiring higher performance.

Q3: Can this bearing be used in standard bearing housing assemblies?
A3: Yes—thanks to its standard dimensions (55 x 120 x 43 mm) and robust design, this bearing can be incorporated into existing bearing units or housing assemblies (“jednostka łożyskowa”, “obudowa łożyskowa”) without major modifications.

Q4: In which industrial machines is this bearing particularly useful?
A4: It is especially suitable for conveyors, gearbox drives, rolling mills, heavy presses and automated production lines where high radial and axial loads, as well as strong durability and long life, are required.