+86 15806631151 [email protected]
TFL BEARINGS
REQUEST A QUOTE
Double Row Full Complement Cylindrical Roller Bearings NNC 4844 CV

Double Row Full Complement Cylindrical Roller Bearings NNC 4844 CV

The NNC 4844 CV is a double-row full complement cylindrical roller bearing with a 220mm bore and 270mm outer diameter, crafted from durable 52100 chrome steel. It handles combined loads up to 79200 lbf and runs smoothly at speeds up to 1000 RPM.

Its full complement design (no cage) maximises load capacity, while the open seal allows easy lubrication with grease or oil. The bearing operates reliably in temperatures from -30°C to 110°C.

This model is interchangeable with SKF bearings, making it a practical choice for replacements. Ideal for heavy-duty applications like industrial gearboxes or large machinery where high radial loads are common.

Weighing 5.9kg, it’s built for robust performance. Compliant with RoHS and REACH standards for safe use.

Get A Free Quote
    Description Features Application Q&A Featured Products Our Process

Product Parameters

  • Part Number NNC 4844 CV
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 220 mm
  • Bore Dia Tolerance -0.03mm to 0
  • Outer Dia 270 mm
  • Outer Dia Tolerance -0.035mm to 0
  • Width 50 mm
  • Width Tolerance -0.30mm 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 241 mm
  • Raceway Diameter Outer Ring 250.5 mm
  • Width Annular Lubrication Groove Outer Ring 7 mm
  • Diameter Lubrication Hole (Outer Ring) 4 mm
  • Chamfer Dimension r1,2(min.) 1.5 mm
  • Ring Material 52100 Chrome Steel
  • Roller Material 52100 Chrome Steel
  • Cage Material Full complement (no cage)
  • Dynamic Radial Load 79200 lbf
  • Static Radial Load 194625 lbf
  • Max Speed 1000 rpm
  • Lubrication Grease, Oil
  • Temperature Range -30° to 110 °C
  • RoHS Compliant
  • REACH Compliant
  • Weight 5.9 kg
Double Row Full Complement Cylindrical Roller Bearings NNC 4844 CV dimension drawing
Download DWG Download PDF

Features

Performance Features of NNC 4844 CV Bearing

NNC 4844 CV Bearing is constructed with double-row full complement cylindrical rollers, offering high load capacity and stability.
Its 52100 chrome steel rings and rollers provide excellent resistance to wear and fatigue.

The dynamic radial load capacity reaches 79,200 lbf, making it suitable for heavy-duty applications.
With a maximum speed of 1,000 rpm, it ensures reliable performance in various industrial settings.

NNC 4844 CV Bearing operates efficiently in temperatures ranging from -30° to 110°C.
Its open design allows for easy lubrication with grease or oil, reducing maintenance needs.

The full complement roller arrangement enhances load distribution, extending service life.
Precision-engineered dimensions ensure smooth operation and compatibility with standard industrial equipment.

Application

Industrial Uses of NNC 4844 CV Bearing
NNC 4844 CV Bearing is commonly used in heavy machinery like industrial gearboxes and large conveyor systems, where its double-row design handles combined radial and axial loads efficiently.
The full complement of rollers ensures higher load capacity, making it suitable for applications where space constraints limit bearing size but demand robust performance.

Where Is NNC 4844 CV Bearing Used?
In wind turbines, NNC 4844 CV Bearing supports the main shaft, providing reliable performance under varying wind loads and harsh environmental conditions.
Its chrome steel construction and grease lubrication make it durable in outdoor applications where maintenance access is limited.

Built for Heavy-Duty Use: NNC 4844 CV Bearing
NNC 4844 CV Bearing excels in steel mills and mining equipment, where high static and dynamic loads are common.
The absence of a cage allows for maximum roller count, enhancing load distribution and longevity in demanding environments.

Automotive vs Aerospace: Applications of NNC 4844 CV Bearing
In automotive applications, NNC 4844 CV Bearing is found in heavy-duty truck transmissions, handling high torque and axial forces.
For aerospace, its precision and load capacity make it suitable for landing gear systems, though weight considerations often dictate alternative designs.

Q&A

SEND INQUIRY