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Four-Point Contact Angular Contact Ball Bearings (General) QJ 1264 N2MA

Four-Point Contact Angular Contact Ball Bearings (General) QJ 1264 N2MA

The QJ 1264 N2MA is a four-point contact angular contact ball bearing with a 320mm bore and 580mm outer diameter, crafted from robust chrome steel. It handles radial loads up to 215100 lbf and operates smoothly at speeds up to 1700 RPM.

Its brass cage enhances durability, while the open design simplifies lubrication. The bearing performs reliably in temperatures ranging from -30°C to 110°C.

This model is interchangeable with SKF bearings, offering a practical replacement option. Suitable for heavy-duty applications like industrial gearboxes or large machinery where radial and axial loads are present.

Weighing 130kg, it’s built for stability and strength. Compliant with RoHS and REACH standards for safe and eco-friendly use.

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Product Parameters

  • Part Number QJ 1264 N2MA
  • Brand TFL
  • Interchangeable SKF
  • System of Measurement Metric
  • Bearing Type Ball
  • For Load Direction Four Point Contact
  • Construction Single Row
  • Seal Type Open
  • Bore Dia 320 mm
  • Bore Dia Tolerance -0.03mm to 0
  • Outer Dia 580 mm
  • Outer Dia Tolerance -0.038mm to 0
  • Width 105 mm
  • Width Tolerance -0.05mm to 0
  • External Diameter On Inner Ring (Large Side Face) 421 mm
  • Internal Diameter On Outer Ring 479 mm
  • Chamfer Dimension 5 mm
  • Distance Pressure Point (a) 450 mm
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Brass
  • Dynamic Radial Load 215100 lbf
  • Static Radial Load 468000 lbf
  • Max Speed 1700 rpm
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Tolerance Class P6 (ABEC-3)
  • ROHS Compliant
  • REACH Compliant
  • Weight 130 kg
Four-Point Contact Angular Contact Ball Bearings (General) QJ 1264 N2MA dimension drawing
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Features

Performance Features of QJ 1264 N2MA Bearing

QJ 1264 N2MA Bearing is built with chrome steel rings and balls, offering high resistance to radial loads.
Its dynamic radial load capacity reaches 215100 lbf, making it suitable for heavy-duty applications.
The brass cage ensures smooth operation by keeping the balls properly aligned.
With a maximum speed of 1,700 rpm, it delivers reliable performance in various conditions.

How Does QJ 1264 N2MA Bearing Reduce Friction?

QJ 1264 N2MA Bearing features a precision-engineered single-row design, minimising friction during operation.
The chrome steel construction enhances durability while maintaining smooth performance.
Its open seal type allows for easy lubrication, further reducing friction and wear.
This design ensures efficient operation even under substantial radial loads.

Engineered for Precision: QJ 1264 N2MA Bearing

QJ 1264 N2MA Bearing is crafted for precision with a P6 tolerance class, ensuring accurate performance.
The four-point contact design distributes loads evenly, enhancing stability and longevity.
Its brass cage maintains ball alignment, contributing to consistent operation.
This bearing is ideal for applications requiring high precision and reliability.

Application

Industrial Uses of QJ 1264 N2MA Bearing
QJ 1264 N2MA Bearing is commonly used in heavy machinery, such as large gearboxes and industrial rotors, where its four-point contact design handles combined radial and axial loads efficiently. The brass cage ensures smooth operation even under high stress.

What Makes QJ 1264 N2MA Bearing a Preferred Choice?
In wind turbine applications, QJ 1264 N2MA Bearing’s robust construction and high load capacity make it ideal for supporting rotor shafts. Its metric dimensions and P6 tolerance class ensure precise alignment in demanding environments.

Built for Heavy-Duty Use: QJ 1264 N2MA Bearing
This bearing excels in steel mills and mining equipment, where its chrome steel rings and brass cage withstand extreme conditions. The lubricated design reduces friction, extending service life in continuous operation.

Automotive vs Aerospace: Applications of QJ 1264 N2MA Bearing
In automotive systems, QJ 1264 N2MA Bearing supports large drivetrain components, while in aerospace, it’s used in landing gear mechanisms. Its high static radial load capacity ensures reliability in both sectors.

Where Is QJ 1264 N2MA Bearing Used?
You’ll find QJ 1264 N2MA Bearing in construction equipment like cranes and excavators, where its durability and load handling are critical. The open seal design allows for easy inspection and maintenance.

Q&A

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