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Four-Point Contact Angular Contact Ball Bearings (General) QJ 316 N2MA
Four-Point Contact Angular Contact Ball Bearings (General) QJ 316 N2MA

Four-Point Contact Angular Contact Ball Bearings (General) QJ 316 N2MA

The QJ 316 N2MA is a four-point contact angular contact ball bearing with an 80mm bore and 170mm outer diameter, crafted from sturdy chrome steel. It manages radial loads up to 52200 lbf and operates smoothly at speeds up to 7000 RPM.

Its open design and brass cage ensure durability and easy maintenance, while the single-row construction offers reliable performance. The bearing functions well 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 and axial loads are present.

Weighing 4.6kg, 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 316 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 80 mm
  • Bore Dia Tolerance -0.012mm to 0
  • Outer Dia 170 mm
  • Outer Dia Tolerance -0.018mm to 0
  • Width 39 mm
  • Width Tolerance -0.05mm to 0
  • External Diameter On Inner Ring (Large Side Face) 111 mm
  • Internal Diameter On Outer Ring 139 mm
  • Chamfer Dimension 2.1 mm
  • Distance Pressure Point (a) 88 mm
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Brass
  • Dynamic Radial Load 52200 lbf
  • Static Radial Load 51300 lbf
  • Max Speed 7000 rpm
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Tolerance Class P6 (ABEC-3)
  • ROHS Compliant
  • REACH Compliant
  • Weight 4.6 kg

Features

Performance Features of QJ 316 N2MA Bearing

QJ 316 N2MA Bearing is built with chrome steel rings and balls, offering high resistance to radial loads.
Its dynamic radial load capacity reaches 52,200 lbf, ensuring stable performance in demanding conditions.

The brass cage maintains ball alignment, reducing friction and enhancing durability.
With a maximum speed of 7,000 rpm, it balances efficiency and reliability.

QJ 316 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

Common Applications of QJ 316 N2MA Bearing
QJ 316 N2MA Bearing is widely used in industrial machinery, especially in applications that require handling combined radial and axial loads, such as gearboxes and heavy-duty pumps. Its brass cage ensures smooth operation even under high stress.

In automotive systems, QJ 316 N2MA Bearing is often found in wheel hubs and transmissions, where its four-point contact design provides stability and durability. The metric sizing makes it a versatile choice for various vehicle models.

For automation and robotics, QJ 316 N2MA Bearing supports precise movements in components like robotic arms and CNC machines. Its P6 tolerance class ensures reliable performance in high-precision environments.

In medical equipment, QJ 316 N2MA Bearing’s chrome steel construction offers long-lasting reliability for devices like MRI scanners. The lubricated design reduces maintenance needs, making it ideal for critical applications.

Consumer electronics like high-end printers also benefit from QJ 316 N2MA Bearing’s smooth operation. Its open seal type allows for easy lubrication, ensuring consistent performance over time.

Q&A

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