+86 15806631151 [email protected]
TFL BEARINGS
REQUEST A QUOTE
Four-Point Contact Angular Contact Ball Bearings (General) QJ 307 N2MA

Four-Point Contact Angular Contact Ball Bearings (General) QJ 307 N2MA

The QJ 307 N2MA is a four-point contact angular contact ball bearing, measuring 35mm by 80mm by 21mm, crafted from durable chrome steel. It handles radial loads up to 14400 lbf and spins smoothly at speeds up to 15000 RPM.

Its single-row design with an open seal allows for easy lubrication, while the brass cage ensures quiet and efficient operation. The bearing operates well in temperatures from -30°C to 110°C.

This model is interchangeable with SKF bearings, making it a reliable choice for replacements. Ideal for applications like gearboxes or industrial machinery where radial and axial loads are present.

Weighing 0.57kg, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe and eco-friendly use.

Get A Free Quote
    Description Features Application Q&A Featured Products Our Process

Product Parameters

  • Part Number QJ 307 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 35 mm
  • Bore Dia Tolerance -0.01mm to 0
  • Outer Dia 80 mm
  • Outer Dia Tolerance -0.011mm to 0
  • Width 21 mm
  • Width Tolerance -0.05mm to 0
  • External Diameter On Inner Ring (Large Side Face) 46.2 mm
  • Internal Diameter On Outer Ring 64.3 mm
  • Chamfer Dimension 1.5 mm
  • Distance Pressure Point (a) 40 mm
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Brass
  • Dynamic Radial Load 14400 lbf
  • Static Radial Load 11475 lbf
  • Max Speed 15000 rpm
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Tolerance Class P6 (ABEC-3)
  • ROHS Compliant
  • REACH Compliant
  • Weight 0.57 kg
Four-Point Contact Angular Contact Ball Bearings (General) QJ 307 N2MA dimension drawing
Download DWG Download PDF

Features

Performance Features of QJ 307 N2MA Bearing

QJ 307 N2MA Bearing is designed with chrome steel rings and balls, offering strong resistance to radial loads.
Its dynamic radial load capacity reaches 14400 lbf, ensuring reliable performance in demanding applications.

The brass cage maintains ball alignment, reducing friction and extending service life.
With a maximum speed of 15,000 rpm, it balances durability and efficiency.

QJ 307 N2MA Bearing operates smoothly in temperatures ranging from -30° to 110°C.
Its precision P6 tolerance class ensures consistent performance in high-speed applications.

Application

Industrial Uses of QJ 307 N2MA Bearing
QJ 307 N2MA Bearing is commonly used in machine tools, where its four-point contact design handles combined radial and axial loads efficiently. The brass cage ensures smooth operation even at high speeds, making it suitable for precision equipment.

What Makes QJ 307 N2MA Bearing a Preferred Choice?
In automotive applications, QJ 307 N2MA Bearing supports gearbox components, offering reliable performance under varying loads. Its P6 tolerance class ensures consistent accuracy, which is vital for vehicle drivetrains.

Built for Heavy-Duty Use: QJ 307 N2MA Bearing
This bearing excels in conveyor systems, where its chrome steel construction withstands continuous operation. The open seal design allows for easy lubrication, extending service life in demanding environments.

Medical vs Industrial: Where QJ 307 N2MA Bearing Excels
While QJ 307 N2MA Bearing is robust enough for industrial machinery, its precision also suits medical imaging devices. The balanced load capacity ensures stability in both high-speed and high-accuracy applications.

Perfect Fit for Automation: QJ 307 N2MA Bearing
In robotic arms, QJ 307 N2MA Bearing provides smooth rotation and precise positioning. Its metric dimensions and ABEC-3 tolerance make it compatible with a wide range of automated systems.

Q&A

SEND INQUIRY