FAG 2303 – 17 mm Self-Aligning Ball Bearing

FAG 2303 – 17 mm Self-Aligning Ball Bearing

The FAG 2303 is a versatile double-row self-aligning ball bearing engineered to accommodate angular misalignment between the shaft and housing. Its unique design features a spherical outer ring raceway, allowing it to compensate for shaft deflection or mounting errors. This makes it an excellent choice for applications where precise alignment is difficult to maintain, providing reliable performance and a longer service life.

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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 self-aligning ball bearing, a type of rolling-element bearing with two rows of balls and a single, shared spherical raceway in the outer ring. This design allows the inner ring, balls, and cage to pivot freely, compensating for dynamic or static angular misalignment. This ability to accommodate misalignment makes the FAG 2303 particularly suitable for applications with long shafts, soft housings, or where mounting inaccuracies are unavoidable. The “23” in the part number indicates it is from the heavy-duty 23 series, while the “03” specifies a 17 mm bore diameter. This combination of self-aligning capability and a robust design ensures reliable operation under a variety of demanding conditions.

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Technical Specifications

• Manufacturer: FAG (part of the Schaeffler Group)
• Part Number: 2303
• Bearing Type: Self-Aligning Ball Bearing
• Dimensions:
  • Bore Diameter (d): 17 mm
  • Outer Diameter (D): 47 mm
  • Width (B): 17 mm
• Dynamic Load Rating (C): 13.9 kN
• Static Load Rating (C0): 4.65 kN
• Speed Ratings:
  • Reference Speed: 17,200 r/min
  • Limiting Speed: 20,000 r/min
• Weight: 0.14 kg
• Also Known As: 2303-K, 17x47x17 mm bearing, Self-Aligning Ball Bearing 2303

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Key Features & Benefits

• Accommodates Misalignment: The self-aligning design compensates for static and dynamic shaft misalignment, reducing stress on the bearing.
• High-Speed Capability: The bearing’s internal geometry and self-aligning feature allow for high rotational speeds.
• Versatile Design: Capable of handling both radial and light axial loads, making it suitable for a variety of applications.
• Durable Construction: Part of the 23-series, it offers a robust design for reliable performance.