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Four-Point Contact Angular Contact Ball Bearings (General) QJ 212 N2MA

Four-Point Contact Angular Contact Ball Bearings (General) QJ 212 N2MA

The QJ 212 N2MA is a four-point contact angular contact ball bearing, measuring 60mm by 110mm by 22mm. Made from chrome steel with a brass cage, it offers durability and smooth operation.

It handles radial loads up to 21712 lbf and can spin at speeds up to 10000 RPM. The open design allows for easy lubrication, ensuring long service life.

The single-row construction and precise P6 tolerance make it reliable for high-performance applications. It works well in temperatures ranging from -30°C to 110°C.

This bearing is interchangeable with SKF models, ideal for industrial machinery or gear systems where radial and axial loads are present. Weighing 0.99kg, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards.

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Product Parameters

  • Part Number QJ 212 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 60 mm
  • Bore Dia Tolerance -0.012mm to 0
  • Outer Dia 110 mm
  • Outer Dia Tolerance -0.013mm to 0
  • Width 22 mm
  • Width Tolerance -0.05mm to 0
  • External Diameter On Inner Ring (Large Side Face) 72 mm
  • Internal Diameter On Outer Ring 93 mm
  • Chamfer Dimension 1.5 mm
  • Distance Pressure Point (a) 60 mm
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Brass
  • Dynamic Radial Load 21712 lbf
  • Static Radial Load 20925 lbf
  • Max Speed 10000 rpm
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Tolerance Class P6 (ABEC-3)
  • ROHS Compliant
  • REACH Compliant
  • Weight 0.99 kg
Four-Point Contact Angular Contact Ball Bearings (General) QJ 212 N2MA dimension drawing
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Features

Performance Features of QJ 212 N2MA Bearing

QJ 212 N2MA Bearing is designed with chrome steel rings and balls, offering strong resistance to radial loads.
Its dynamic radial load capacity reaches 21712 lbf, ensuring reliable performance in demanding applications.

The brass cage maintains ball alignment, reducing friction and extending service life.
With a maximum speed of 10,000 rpm, it balances durability and efficiency for high-speed operations.

QJ 212 N2MA Bearing operates smoothly in temperatures ranging from -30° to 110°C.
Its open design allows for easy lubrication, ensuring consistent performance over time.

Application

Industrial Uses of QJ 212 N2MA Bearing
QJ 212 N2MA Bearing is commonly used in machine tools, where its four-point contact design handles both radial and axial loads efficiently. The open seal type simplifies lubrication, making it suitable for high-speed operations.

Where Is QJ 212 N2MA Bearing Used?
In automotive applications, QJ 212 N2MA Bearing supports gearbox systems, ensuring smooth power transmission. Its brass cage enhances durability, even under frequent load changes.

Built for Heavy-Duty Use: QJ 212 N2MA Bearing
QJ 212 N2MA Bearing excels in conveyor systems, where its chrome steel construction withstands continuous use. The P6 tolerance class ensures precision in demanding industrial environments.

Automotive vs Aerospace: Applications of QJ 212 N2MA Bearing
QJ 212 N2MA Bearing is versatile, fitting both automotive transmissions and aerospace actuators. Its balanced load capacity makes it reliable across different industries.

Perfect Fit for Automation: QJ 212 N2MA Bearing
QJ 212 N2MA Bearing works well in robotic arms, offering stability during repetitive movements. The lubricated design reduces friction, extending service life in automated systems.

Q&A

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