FAG NJ306-E-XL-M1A C3 – Cylindrical Roller Bearing

FAG NJ306-E-XL-M1A C3 – 30 mm Cylindrical Roller Bearing

The FAG NJ306-E-XL-M1A C3 is a premium cylindrical roller bearing engineered for superior performance in demanding industrial applications. Combining a reinforced design for higher load capacity with a robust machined brass cage and larger-than-standard internal clearance, this bearing is built to handle heavy radial loads and limited axial forces at high speeds. It is an ideal component for machinery where reliability and efficiency are paramount, such as gearboxes, pumps, and electric motors.

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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 cylindrical roller bearing with an **NJ** designation, which means it has two rigid ribs on its outer ring and a single rib on its inner ring. This configuration allows it to support heavy radial loads while also providing limited axial location in one direction. The **E** suffix denotes a reinforced design with an optimized internal geometry for a higher load capacity. As an **X-life (XL)** product, it is part of FAG’s premium line, promising a longer service life and enhanced performance. The **M1A** suffix specifies a two-piece, solid machined brass cage, which is outer ring-guided. This type of cage is highly durable, suitable for high-temperature applications, and is superior to standard cages in high-speed conditions. The **C3** clearance indicates a larger-than-normal radial internal clearance, which is critical in applications with thermal expansion or high speeds to prevent the bearing from seizing.

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Technical Specifications

• Manufacturer: FAG (part of the Schaeffler Group)
• Part Number: NJ306-E-XL-M1A C3
• Bearing Type: Cylindrical Roller Bearing
• Dimensions:
  • Bore Diameter (d): 30 mm
  • Outer Diameter (D): 72 mm
  • Width (B): 19 mm
• Dynamic Load Rating (C): 61 kN
• Static Load Rating (C0): 48 kN
• Reference Speed: 9,000 r/min
• Cage Material: Machined Brass (M1A)
• Internal Clearance: C3
• Weight: 0.376 kg
• Also Known As: FAG NJ306, NJ306-E-XL-M1A, 30x72x19 bearing

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Key Features & Benefits

• Superior Load Capacity: The reinforced “E” design allows the bearing to handle significantly higher radial loads.
• Extended Service Life: As an “X-life” product, it is designed for a longer operational life and reduced maintenance.
• High-Temperature & High-Speed Performance: The robust brass cage (M1A) and larger C3 clearance make it highly reliable in demanding environments with elevated temperatures and high rotational speeds.
• Partial Axial Location: The NJ configuration provides the ability to handle limited axial thrust loads in one direction, adding versatility to its applications.