Description
NTN NU313EC4 Cylindrical Roller Bearing – High-Load, Precision Bearing for Rotating Equipment and Power Transmission Systems
The NTN NU313EC4 is a heavy-duty cylindrical roller bearing designed for demanding industrial applications requiring high radial load capacity and precise rotational performance. With a 65 mm inner diameter and 140 mm outer diameter, this bearing is ideal for electric motors, gearboxes, pumps, and machinery drive systems.
The NU-type configuration allows the inner ring to float axially, making it well-suited for applications with thermal expansion or shaft movement. This design helps maintain alignment and reduces internal stress under varying load conditions.
Engineered to NTN’s EC4 specification, the NU313EC4 provides increased radial clearance to accommodate higher operating temperatures and greater load demands. It features hardened raceways, precision rollers, and a rigid cage structure for low friction, quiet operation, and long bearing life.
Constructed from premium-grade bearing steel, this bearing offers exceptional wear resistance, thermal stability, and vibration control in continuous-duty applications.
Trusted by engineers and maintenance professionals worldwide, the NTN NU313EC4 ensures OEM-quality reliability, high performance, and long-term durability in mission-critical machinery.