Self-Aligning Ball Bearing With Tapered Bore – 1311 EKTN9/C3

The 1311 EKTN9/C3 Self-Aligning Ball Bearing is engineered for applications that demand high-speed performance and misalignment tolerance. With two rows of balls and a common sphered raceway, it easily compensates for shaft deflections and housing misalignments. The tapered bore (1:12) allows for easy mounting using adapter or withdrawal sleeves, making it ideal for industrial applications such as pumps, conveyors, and gearboxes.

Designed with low friction and C3 radial clearance, this bearing reduces operating temperature, increases efficiency, and ensures smooth operation under light to moderate loads. Built from high-quality bearing steel, it guarantees durability and long service life in demanding environments.

Specification:

• Bore Diameter: 55 mm

• Outer Diameter: 120 mm

• Width: 29 mm

• Bore Type: Tapered (1:12)

• Number of Rows: 2

• Load Ratings: 50.7 kN (dynamic), 18 kN (static)

• Speed Ratings: 11,000 r/min (reference), 7,500 r/min (limiting)

• Cage Type: Non-metallic

• Radial Clearance: C3

• Material: Bearing Steel

• Tolerance Class: Normal

• Lubrication & Sealing: None

• Net Weight: 1.52 kg