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Single Row Cylindrical Roller Bearings With Inner Ring NJ 18/630 ECMA/HB1
Single Row Cylindrical Roller Bearings With Inner Ring NJ 18/630 ECMA/HB1

Single Row Cylindrical Roller Bearings With Inner Ring NJ 18/630 ECMA/HB1

The NJ 18/630 ECMA/HB1 is a single row cylindrical roller bearing with a 630mm bore and 780mm outer diameter, built from sturdy chrome steel. It handles combined loads up to 247500 lbf and runs smoothly at speeds up to 1000 RPM.

Its brass cage and outer ring centred design ensure reliable performance, 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 machinery or large equipment where high radial loads are common.

Weighing 75kg, it’s robust and durable for demanding environments. Compliant with RoHS and REACH standards for safe and eco-friendly use.

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Product Parameters

  • Part Number NJ 18/630 ECMA/HB1
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 630 mm
  • Bore Dia Tolerance -0.05mm to 0
  • Outer Dia 780 mm
  • Outer Dia Tolerance -0.075mm to 0
  • Width 69 mm
  • Width Tolerance -0.50mm to 0
  • Shoulder Dia Of Inner Ring 682 mm
  • Chamfer Dimension r1,2(min.) 4 mm
  • Permissible Axial Displacement(max.) 1.5 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, outer ring centred
  • Dynamic Radial Load 247500 lbf
  • Static Radial Load 562500 lbf
  • Lubrication Grease, Oil
  • Temperature Range -30° to 110 °C
  • RoHS Compliant
  • REACH Compliant
  • Max Speed 1000 rpm
  • Weight 75 kg
  • Shoulder Dia Of Outer Ring 724 mm
  • Raceway Diameter Of Inner Ring 667 mm

Features

Performance Features of NJ 18/630 ECMA/HB1 Bearing

NJ 18/630 ECMA/HB1 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 247500 lbf, ensuring reliable performance in heavy-duty applications.

The brass cage keeps the rollers aligned, reducing wear and extending service life.
With a maximum speed of 1000 rpm, it balances durability and efficiency in demanding conditions.

NJ 18/630 ECMA/HB1 Bearing operates smoothly in temperatures ranging from -30° to 110°C.
Its open design allows for easy lubrication with grease or oil, reducing maintenance needs.

The precise tolerances of NJ 18/630 ECMA/HB1 Bearing ensure stable operation under heavy loads.
Its single-row cylindrical design provides excellent radial load capacity and axial displacement up to 1.5 mm.

Application

Industrial Uses of NJ 18/630 ECMA/HB1 Bearing
NJ 18/630 ECMA/HB1 Bearing is commonly used in heavy machinery like rolling mills and large gearboxes, where its high radial load capacity ensures reliable performance. The brass cage design helps reduce friction, making it suitable for continuous operation.

In wind turbines, NJ 18/630 ECMA/HB1 Bearing handles combined loads efficiently, thanks to its robust chrome steel construction. Its large bore size (630mm) makes it ideal for connecting heavy rotating components.

For mining equipment, NJ 18/630 ECMA/HB1 Bearing’s durability shines in conveyor systems and crushers, where dust and debris are common. The open seal design allows for easy lubrication, extending service life in harsh conditions.

What Makes NJ 18/630 ECMA/HB1 Bearing a Preferred Choice?
NJ 18/630 ECMA/HB1 Bearing is a go-to for paper manufacturing machines, where its precision alignment keeps production lines running smoothly. The metric dimensions ensure compatibility with European-engineered equipment.

In steel plants, NJ 18/630 ECMA/HB1 Bearing withstands extreme temperatures and heavy loads without compromising performance. Its static radial load capacity (562,500 lbf) makes it a dependable choice for critical applications.

Built for Heavy-Duty Use: NJ 18/630 ECMA/HB1 Bearing
NJ 18/630 ECMA/HB1 Bearing excels in marine propulsion systems, where its corrosion-resistant materials and grease lubrication options prevent seawater damage. The 69mm width provides stability under high torque.

For hydroelectric turbines, NJ 18/630 ECMA/HB1 Bearing’s ability to handle axial displacement (1.5mm max) ensures smooth operation during variable water flow. The brass cage also dampens vibrations, reducing wear.

Light-Duty vs Heavy-Duty: Best Uses for NJ 18/630 ECMA/HB1 Bearing
While NJ 18/630 ECMA/HB1 Bearing is built for industrial-scale loads, its precision makes it suitable for large printing presses too. The chrome steel rollers maintain accuracy even after prolonged use.

In construction cranes, NJ 18/630 ECMA/HB1 Bearing’s 780mm outer diameter provides ample support for rotating booms. The 1000 rpm max speed rating balances performance and safety in dynamic lifting operations.

Q&A

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