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Four-Point Contact Angular Contact Ball Bearings (General) QJ 219 N2MA

Four-Point Contact Angular Contact Ball Bearings (General) QJ 219 N2MA

The QJ 219 N2MA is a four-point contact angular contact ball bearing with a 95mm bore and 170mm outer diameter, crafted from sturdy chrome steel. It manages radial loads up to 47700 lbf and operates smoothly at speeds up to 6700 RPM.

Its single-row design and brass cage ensure durability, while the open construction allows for easy lubrication. The bearing performs reliably in temperatures ranging from -30°C to 110°C.

This model is interchangeable with SKF bearings, making it a practical choice for replacements. Suitable for applications like industrial gearboxes or heavy machinery where radial loads are prevalent.

Weighing 3.35kg, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe and eco-friendly use.

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Product Parameters

  • Part Number QJ 219 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 95 mm
  • Bore Dia Tolerance -0.015mm to 0
  • Outer Dia 170 mm
  • Outer Dia Tolerance -0.018mm to 0
  • Width 32 mm
  • Width Tolerance -0.05mm to 0
  • External Diameter On Inner Ring (Large Side Face) 120 mm
  • Internal Diameter On Outer Ring 145 mm
  • Chamfer Dimension 2.1 mm
  • Distance Pressure Point (a) 93 mm
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Brass
  • Dynamic Radial Load 47700 lbf
  • Static Radial Load 52200 lbf
  • Max Speed 6700 rpm
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Tolerance Class P6 (ABEC-3)
  • ROHS Compliant
  • REACH Compliant
  • Weight 3.35 kg
Four-Point Contact Angular Contact Ball Bearings (General) QJ 219 N2MA dimension drawing
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Features

Performance Features of QJ 219 N2MA Bearing

QJ 219 N2MA Bearing is built with chrome steel rings and balls, offering high resistance to radial loads.

Its dynamic radial load capacity reaches 47,700 lbf, making it suitable for heavy-duty applications.

The brass cage ensures smooth operation and reduces friction, enhancing the bearing’s longevity.

With a maximum speed of 6,700 rpm, it delivers reliable performance in various industrial settings.

Application

Industrial Uses of QJ 219 N2MA Bearing
QJ 219 N2MA Bearing is commonly used in heavy machinery like industrial gearboxes and large conveyor systems, 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 reliable for continuous use.

Where Is QJ 219 N2MA Bearing Used?
In automotive applications, QJ 219 N2MA Bearing supports components such as heavy-duty transmissions and drivetrains, thanks to its robust chrome steel construction.
Its metric sizing and P6 tolerance class make it a precise fit for European and Asian vehicle standards.

Built for Heavy-Duty Use: QJ 219 N2MA Bearing
For automation and robotics, QJ 219 N2MA Bearing provides stability in robotic arms and automated assembly lines, where precision and durability are key.
The open design allows for easy lubrication, extending its service life in demanding environments.

Automotive vs Aerospace: Applications of QJ 219 N2MA Bearing
In aerospace, QJ 219 N2MA Bearing is suited for auxiliary systems like landing gear mechanisms, handling both radial and thrust loads effectively.
Meanwhile, in automotive settings, it excels in high-performance engines and suspension systems due to its load capacity and temperature resistance.

Essential Roles of QJ 219 N2MA Bearing
QJ 219 N2MA Bearing is a go-to choice for medical imaging equipment, where its smooth operation and precision are critical for accurate diagnostics.
The chrome steel rings and brass cage ensure minimal friction and long-term reliability in sensitive applications.

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