NU 311 ECP | SDKF | Single-Row Cylindrical Roller Bearings

The NU 315 ECP is a high-quality single-row cylindrical roller bearing built to deliver reliable and efficient performance in heavy-duty applications. With an inner diameter of 75 mm, an outer diameter of 160 mm, and a width of 37 mm, this bearing balances compactness with strong load-bearing capability.

Designed with an open, NU-type configuration — featuring a fixed outer ring (double-flanged) and a sliding inner ring — the NU 315 ECP allows axial movement of the shaft relative to the housing. This makes it ideal for machinery where thermal expansion or shaft displacement may occur.

A key advantage is its glass-fibre reinforced polyamide (PA66) cage, which keeps the rollers aligned, reduces friction, and supports smooth rotation even under heavy loads. The cage design, combined with optimized roller-end and flange contact geometry, promotes efficient lubricant film formation — leading to lower wear and extended service life.

With a dynamic load rating of approx. 280 kN and a static load rating around 265 kN, NU 315 ECP can handle substantial radial loads. Its speed rating (up to ~5300 rpm) keeps it suitable for moderately high-speed machinery. The separable design also allows for easier mounting, dismounting, and maintenance — a practical benefit in industrial setups.

Commonly used in gearboxes, industrial motors, heavy machinery, conveyors, and other mechanical systems where high radial loads, axial displacement, and reliable long-term performance are required.

In short: if your application demands a robust, high-capacity bearing with flexibility for axial displacement, low friction, durability, and easy installation/maintenance, the NU 315 ECP offers an excellent balance of size, performance, and reliability.