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CR 21108 Self-Aligning Ball Bearing - 40mm Bore | High Performance Misalignment Tolerance

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Marca: CR
Product Category: Self-Aligning Ball Bearing

Product Details

CR 21108 Self-Aligning Ball Bearing - 40mm Bore | High Performance Misalignment Tolerance

The CR 21108 Self-Aligning Ball Bearing is engineered to excel in applications where shaft deflection, mounting error, or housing deformation introduce inherent misalignment risks. Featuring two rows of balls and a common spherical raceway in the outer ring, this robust bearing automatically compensates for static and dynamic angular misalignment up to 2.5 degrees. Manufactured under stringent CR quality standards, the 21108 delivers exceptional reliability, low running friction, and a balanced distribution of radial and moderate axial loads, significantly extending service life in demanding industrial environments. Ideal for use in conveyors, agricultural machinery, textile equipment, and ventilation systems, the CR 21108 reduces the need for costly maintenance and unplanned downtime. Its high basic dynamic load rating (Cr) ensures superior performance under continuous operation and heavy cyclical loads. Optimize your machinery's efficiency and longevity by choosing the genuine CR 21108, known globally for precision engineering, consistent quality, and reduced total cost of ownership (TCO) compared to standard commodity bearings.

Key Features

  • Automatic Misalignment Compensation (up to 2.5°)
  • Optimized internal geometry for low friction operation
  • High basic dynamic load capacity (Cr 29.5 kN)
  • Suitable for high-speed applications (up to 8500 rpm)
  • High-grade CR steel construction for maximum durability and fatigue resistance
  • Effective distribution of radial and light axial loads simultaneously

Technical Specifications

TypeSelf-Aligning Ball Bearing (Double Row)
Series211
d40 mm (Bore Diameter)
D80 mm (Outer Diameter)
B23 mm (Width)
C_r29.5 kN (Basic Dynamic Load Rating)
C_0r8.8 kN (Basic Static Load Rating)
Limiting_Speed_Grease8500 rpm
Weight0.55 kg
MaterialHigh Carbon Chromium Steel