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Double Row Full Complement Cylindrical Roller Bearings NNCL 4956 CV
Double Row Full Complement Cylindrical Roller Bearings NNCL 4956 CV

Double Row Full Complement Cylindrical Roller Bearings NNCL 4956 CV

The NNCL 4956 CV is a double-row cylindrical roller bearing with a 280mm bore and 380mm outer diameter, built from tough chrome steel for heavy-duty use. It supports combined loads up to 272,250 lbf radially and spins smoothly at 1000 RPM.

Its full-complement design (no cage) maximises roller count for higher load capacity, while the open seal allows easy lubrication with grease or oil. The bearing handles temperatures from -30°C to 110°C, making it versatile for harsh environments.

With a 100mm width and 6mm axial displacement tolerance, it fits snugly in demanding setups. Ideal for industrial gearboxes, large machinery, or applications needing robust radial and axial load support.

Weighing 34kg, it’s built to last while meeting RoHS and REACH standards. Compatible with SKF bearings for easy replacement.

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Product Parameters

  • Part Number NNCL 4956 CV
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 280 mm
  • Bore Dia Tolerance -0.035mm to 0
  • Outer Dia 380 mm
  • Outer Dia Tolerance -0.04mm to 0
  • Width 100 mm
  • Width Tolerance -0.35mm to 0
  • System of Measurement Metric
  • Roller Bearing Type Cylindrical
  • For Load Direction Combined
  • Construction Double Row Full Complement
  • Inner Ring Type With Inner Ring
  • Seal Type Open
  • Shoulder Diameter Inner Ring 317 mm
  • Raceway Diameter Outer Ring 353.34 mm
  • Width Annular Lubrication Groove Outer Ring 9.4 mm
  • Diameter Lubrication Hole (Outer Ring) 5 mm
  • Chamfer Dimension r1,2(min.) 2.1 mm
  • Permissible Axial Displacement(max.) 6 mm
  • Ring Material 52100 Chrome Steel
  • Roller Material 52100 Chrome Steel
  • Cage Material Full complement (no cage)
  • Dynamic Radial Load 272250 lbf
  • Static Radial Load 607500 lbf
  • Max Speed 1000 rpm
  • Lubrication Grease, Oil
  • Temperature Range -30° to 110 °C
  • RoHS Compliant
  • REACH Compliant
  • Weight 34 kg

Features

Why Choose NNCL 4956 CV Bearing for Precision Tasks?

NNCL 4956 CV Bearing is built with double-row full complement cylindrical rollers, offering high load capacity and precision.
Its dynamic radial load capacity reaches 272250 lbf, making it suitable for heavy-duty applications.
The absence of a cage allows for more rollers, enhancing load distribution and durability.
With a maximum speed of 1000 rpm, it balances performance and reliability in demanding conditions.

Application

Industrial Uses of NNCL 4956 CV Bearing
NNCL 4956 CV Bearing is commonly used in heavy machinery like rolling mills and gearboxes, where its double-row design handles high radial loads efficiently. The full complement of rollers ensures maximum load capacity without a cage, making it ideal for slow-speed, high-load applications.

Where Is NNCL 4956 CV Bearing Used?
In wind turbines, NNCL 4956 CV Bearing supports the main shaft, providing stability under varying wind conditions. Its chrome steel construction offers durability, while the open design allows for easy lubrication in remote installations.

Built for Heavy-Duty Use: NNCL 4956 CV Bearing
This bearing excels in mining equipment, such as crushers and conveyors, where its robust design withstands harsh environments. The metric dimensions ensure compatibility with international machinery standards, simplifying replacements.

Automotive vs Aerospace: Applications of NNCL 4956 CV Bearing
In automotive applications, NNCL 4956 CV Bearing is found in large truck transmissions, handling combined loads reliably. For aerospace, its precision and load capacity make it suitable for ground support equipment, though not for flight-critical systems.

Practical Applications of NNCL 4956 CV Bearing
NNCL 4956 CV Bearing is a go-to choice for industrial pumps, where its grease or oil lubrication options adapt to different operating conditions. The wide temperature range ensures performance in both hot and cold environments.

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