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Single Row Cylindrical Roller Bearings With Inner Ring NU 311 ECML

Single Row Cylindrical Roller Bearings With Inner Ring NU 311 ECML

The NU 311 ECML is a single row cylindrical roller bearing with a 55mm bore and 120mm outer diameter, crafted from durable chrome steel. It handles combined loads up to 35100 lbf and spins smoothly at speeds up to 11000 RPM.

Its brass cage design ensures stability, while the open seal allows for easy lubrication with grease or oil. The bearing operates well 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 machinery where radial and axial loads are present.

Weighing 1.62kg, it offers a robust build for its size. Compliant with RoHS and REACH standards for safe and reliable use.

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Product Parameters

  • Part Number NU 311 ECML
  • 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
  • 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 Brass cage, inner or outer ring 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 11000 rpm
  • Weight 1.62 kg
  • Shoulder Dia Of Outer Ring 101 mm
  • Raceway Diameter Of Inner Ring 70.5 mm
Single Row Cylindrical Roller Bearings With Inner Ring NU 311 ECML dimension drawing
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Features

Performance Features of NU 311 ECML Bearing

NU 311 ECML Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 35,100 lbf, ensuring reliable performance in demanding conditions.

The brass cage design keeps the rollers aligned, reducing friction and extending service life.
With a maximum speed of 11,000 rpm, it balances durability and efficiency for high-speed applications.

NU 311 ECML Bearing operates smoothly in temperatures ranging from -30° to 110°C.
Its open design allows for easy lubrication with either grease or oil, reducing maintenance needs.

Application

Industrial Uses of NU 311 ECML Bearing
NU 311 ECML Bearing is commonly used in heavy machinery like conveyor systems and industrial gearboxes, where its cylindrical roller design handles combined loads efficiently. The brass cage ensures smooth operation even at high speeds, making it suitable for demanding environments.

Where Is NU 311 ECML Bearing Used?
You’ll often find NU 311 ECML Bearing in automotive applications, particularly in transmissions and wheel hubs, where its high radial load capacity is essential. Its chrome steel construction also makes it durable enough for long-term use in harsh conditions.

Built for Heavy-Duty Use: NU 311 ECML Bearing
NU 311 ECML Bearing excels in construction equipment, such as cranes and excavators, thanks to its ability to withstand heavy radial loads. The open design allows for easy lubrication, ensuring consistent performance over time.

Automotive vs Aerospace: Applications of NU 311 ECML Bearing
In automotive settings, NU 311 ECML Bearing supports components like differentials, while in aerospace, it’s used in auxiliary systems due to its reliability. The metric sizing ensures compatibility across various industries.

Perfect Fit for Automation: NU 311 ECML Bearing
NU 311 ECML Bearing is ideal for robotic arms and automated assembly lines, where precision and durability are key. Its high-speed capability and brass cage reduce friction, ensuring smooth movement in repetitive tasks.

Q&A

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