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Four-Point Contact Angular Contact Ball Bearings (General) QJ 1088 N2MA

Four-Point Contact Angular Contact Ball Bearings (General) QJ 1088 N2MA

The QJ 1088 N2MA is a large four-point contact ball bearing, measuring 440mm in bore diameter and 650mm in outer diameter, with a width of 94mm. Made from durable chrome steel, it’s built to handle heavy radial loads up to 223,875 lbf.

Its single-row design with a brass cage ensures smooth operation, even at speeds up to 1400 RPM. The open seal type allows for easy lubrication, making maintenance straightforward.

This bearing is ideal for heavy-duty applications like industrial gearboxes or large machinery where high radial loads are common. It operates efficiently in temperatures ranging from -30°C to 110°C.

Weighing 114kg, it’s a robust choice for demanding environments. Compliant with RoHS and REACH standards, it’s also interchangeable with SKF bearings for easy replacements.

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Product Parameters

  • Part Number QJ 1088 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 440 mm
  • Bore Dia Tolerance -0.035mm to 0
  • Outer Dia 650 mm
  • Outer Dia Tolerance -0.045mm to 0
  • Width 94 mm
  • Width Tolerance -0.05mm to 0
  • External Diameter On Inner Ring (Large Side Face) 513 mm
  • Internal Diameter On Outer Ring 577 mm
  • Chamfer Dimension 6 mm
  • Distance Pressure Point (a) 382 mm
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Brass
  • Dynamic Radial Load 223875 lbf
  • Static Radial Load 562500 lbf
  • Max Speed 1400 rpm
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Tolerance Class P6 (ABEC-3)
  • ROHS Compliant
  • REACH Compliant
  • Weight 114 kg
Four-Point Contact Angular Contact Ball Bearings (General) QJ 1088 N2MA dimension drawing
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Features

Performance Features of QJ 1088 N2MA Bearing

QJ 1088 N2MA Bearing is built with chrome steel rings and balls, offering high resistance to radial loads.
Its dynamic radial load capacity reaches 223875 lbf, ensuring robust performance in heavy-duty applications.

The brass cage maintains ball alignment, reducing friction and enhancing durability.
With a maximum speed of 1,400 rpm, it delivers reliable operation under demanding conditions.

QJ 1088 N2MA Bearing operates efficiently within a temperature range of -30° to 110°C.
Its open design allows for easy lubrication, ensuring smooth performance over time.

The precise P6 tolerance class ensures consistent performance in high-precision applications.
This makes QJ 1088 N2MA Bearing suitable for industries requiring accuracy and reliability.

Application

Industrial Uses of QJ 1088 N2MA Bearing
QJ 1088 N2MA Bearing is commonly used in heavy machinery, such as large-scale conveyor systems and industrial presses, where its four-point contact design handles combined radial and axial loads efficiently.
The brass cage ensures smooth operation even under high stress, making it a reliable choice for demanding environments.

Where Is QJ 1088 N2MA Bearing Used?
In wind turbines, QJ 1088 N2MA Bearing plays a key role in supporting the rotor shaft, thanks to its high load capacity and durability.
Its metric dimensions and P6 tolerance class make it suitable for precision applications in European and Asian markets.

Built for Heavy-Duty Use: QJ 1088 N2MA Bearing
QJ 1088 N2MA Bearing is ideal for mining equipment, where its chrome steel construction withstands harsh conditions and heavy loads.
The lubricated design helps maintain performance over long periods, reducing downtime for maintenance.

Automotive vs Aerospace: Applications of QJ 1088 N2MA Bearing
In automotive applications, QJ 1088 N2MA Bearing is found in large truck transmissions, providing stability under heavy loads.
For aerospace, its precision and reliability make it suitable for landing gear mechanisms, where safety is paramount.

Key Fields for QJ 1088 N2MA Bearing
QJ 1088 N2MA Bearing is often used in construction equipment, such as cranes and excavators, due to its ability to handle dynamic loads.
The open seal type allows for easy inspection and lubrication, ensuring long service life in rugged conditions.

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