NU 260 MA

The NU 260 MA is a heavy-duty single row cylindrical roller bearing designed to handle massive radial loads while allowing for the inevitable thermal expansion of shafts. With a 300mm bore and a 540mm OD, this "NU" pattern features two fixed ribs on the outer ring and a flangeless inner ring, permitting the shaft to move axially relative to the housing. What sets this specific variant apart is the MA-designated machined brass cage. Unlike standard steel or polyamide cages, this brass retainer is guided by the outer ring, ensuring exceptional stability and heat dissipation-even when the application pushes toward the bearing's limiting speed.

In the field, the NU 260 MA is a staple for large-scale rotating equipment like industrial gearboxes, heavy-duty pumps, and power-gen motors. Because the inner and outer components are completely separable, maintenance crews can install the rings independently, which significantly cuts down on the risk of mounting damage in tight spaces. Its robust construction isn't just about static load ratings; it's about endurance under vibration and high-inertia starts. For engineers managing floating bearing positions, the NU 260 MA provides a reliable, low-friction interface that maintains precision without the risk of internal binding during temperature fluctuations.

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