NU 2252 MC3

The NU 2252 MC3 cylindrical roller bearing delivers robust radial load capacity in applications requiring free axial displacement, such as electric motor shafts, gearbox input stages, and high-speed paper machine dryers. Its "MC3" designation indicates an optimized internal clearance (C3 grade: 0.15–0.20 mm) for thermal expansion compensation in environments ranging from -30°C to +150°C. The NU-type configuration-double flanges on the outer ring and none on the inner ring-permits shaft elongation in steel rolling mill stands or cement kiln drive systems. Manufactured from vacuum-degassed SUJ2 chromium steel, the bearing meets ISO 15:2017 dimensional standards and ABMA 12.1 load ratings. Pre-lubricated with polyurea-based grease (NLGI 2), it resists centrifugal throw-off in vertical pump installations while minimizing friction losses. Widely used in mining conveyor pulleys, wind turbine generators, and industrial compressor spindles, the NU 2252 MC3 reduces alignment sensitivity by 30% compared to standard clearance bearings, ensuring reliability in vibration-intensive operations.

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