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Single Row Cylindrical Roller Bearings With Inner Ring NJ 311 ECP

Single Row Cylindrical Roller Bearings With Inner Ring NJ 311 ECP

The NJ 311 ECP is a single row cylindrical roller bearing with a 55mm bore and 120mm outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 35100 lbf and reaches speeds of 7000 RPM.

Its PA66 cage keeps rollers centred for smooth operation, while the open design allows easy lubrication with grease or oil. The bearing performs reliably in temperatures from -30°C to 110°C.

With a 29mm width and 2mm chamfer dimensions, it fits snugly in tight spaces. The inner ring design ensures stability under axial displacement.

Ideal for industrial gearboxes or heavy machinery, this SKF-interchangeable model weighs 1.5kg. Compliant with RoHS and REACH standards for safe use.

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Product Parameters

  • Part Number NJ 311 ECP
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 55 mm
  • Bore Dia Tolerance -0.15mm to 0
  • Outer Dia 120 mm
  • Outer Dia Tolerance -0.015mm to 0
  • Width 29 mm
  • Width Tolerance -0.15mm to 0
  • Shoulder Dia Of Inner Ring 77.5 mm
  • Chamfer Dimension r1,2(min.) 2 mm
  • Chamfer Dimension r3,4(min.) 2 mm
  • Permissible Axial Displacement(max.) 2 mm
  • System of Measurement Metric
  • Roller Bearing Type Cylindrical
  • For Load Direction Combined
  • Construction Single Row
  • Inner Ring Type With Inner Ring
  • Seal Type Open
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material PA66 cage, roller centred
  • Dynamic Radial Load 35100 lbf
  • Static Radial Load 32175 lbf
  • Lubrication Grease, Oil
  • Temperature Range -30° to 110 °C
  • RoHS Compliant
  • REACH Compliant
  • Max Speed 7000 rpm
  • Weight 1.5 kg
  • Shoulder Dia Of Outer Ring 100.3 mm
  • Raceway Diameter Of Inner Ring 70.5 mm
Single Row Cylindrical Roller Bearings With Inner Ring NJ 311 ECP dimension drawing
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Features

How Does NJ 311 ECP Bearing Handle Combined Loads?

NJ 311 ECP Bearing features chrome steel rings and rollers, providing strong resistance to both radial and axial loads.
Its dynamic radial load capacity reaches 35100 lbf, ensuring reliable performance in demanding applications.
The PA66 cage keeps the rollers centred, reducing wear and extending service life.
With a maximum speed of 7000 rpm, it balances durability and efficiency.

Application

Industrial Uses of NJ 311 ECP Bearing
NJ 311 ECP Bearing is commonly used in heavy machinery like conveyor systems and industrial gearboxes, where its cylindrical roller design handles high radial loads efficiently. The open seal type allows for easy lubrication, making it suitable for demanding environments.

In automotive applications, NJ 311 ECP Bearing supports components such as transmissions and differentials, ensuring smooth operation under combined loads. Its metric sizing ensures compatibility with a wide range of vehicle models.

For automation systems, NJ 311 ECP Bearing’s chrome steel construction provides reliability in robotic arms and assembly lines. The PA66 cage enhances durability, reducing wear in high-speed scenarios.

What Makes NJ 311 ECP Bearing a Preferred Choice?
NJ 311 ECP Bearing excels in medical imaging equipment, where precision and stability are critical. Its temperature range and grease lubrication options make it versatile for various clinical settings.

In consumer electronics, NJ 311 ECP Bearing is found in high-performance printers and fans, offering quiet and efficient operation. The lightweight design and durable materials ensure long-term reliability.

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