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Four-Point Contact Angular Contact Ball Bearings (General) QJ 236 N2MA
Four-Point Contact Angular Contact Ball Bearings (General) QJ 236 N2MA

Four-Point Contact Angular Contact Ball Bearings (General) QJ 236 N2MA

The QJ 236 N2MA is a four-point contact angular contact ball bearing, measuring 180mm by 320mm by 52mm. Made from sturdy chrome steel, it handles radial loads up to 106875 lbf and operates smoothly at speeds up to 3400 RPM.

Its single-row design with a brass cage ensures durability, while the open seal 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. It’s well-suited for heavy-duty applications like industrial gearboxes or machinery where high radial loads are common.

Weighing 20.5kg, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it meets safety and environmental requirements.

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Product Parameters

  • Part Number QJ 236 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 180 mm
  • Bore Dia Tolerance -0.018mm to 0
  • Outer Dia 320 mm
  • Outer Dia Tolerance -0.028mm to 0
  • Width 52 mm
  • Width Tolerance -0.05mm to 0
  • External Diameter On Inner Ring (Large Side Face) 231 mm
  • Internal Diameter On Outer Ring 269 mm
  • Chamfer Dimension 4 mm
  • Distance Pressure Point (a) 175 mm
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Brass
  • Dynamic Radial Load 106875 lbf
  • Static Radial Load 172125 lbf
  • Max Speed 3400 rpm
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Tolerance Class P6 (ABEC-3)
  • ROHS Compliant
  • REACH Compliant
  • Weight 20.5 kg

Features

Performance Features of QJ 236 N2MA Bearing

QJ 236 N2MA Bearing is built with chrome steel rings and balls, offering strong resistance to radial loads.
Its dynamic radial load capacity reaches 106875 lbf, ensuring reliable performance in heavy-duty applications.

The brass cage maintains ball alignment, reducing friction and extending operational life.
With a maximum speed of 3,400 rpm, it balances durability and efficiency.

QJ 236 N2MA Bearing operates smoothly in temperatures ranging from -30° to 110 °C.
Its open design allows for easy lubrication, enhancing long-term reliability.

The precision P6 tolerance class ensures consistent performance in demanding conditions.
This makes QJ 236 N2MA Bearing suitable for high-precision industrial applications.

Application

Industrial Uses of QJ 236 N2MA Bearing
QJ 236 N2MA Bearing is commonly used in heavy machinery like industrial gearboxes and large pumps, where its four-point contact design handles combined radial and axial loads efficiently. The brass cage ensures smooth operation even under high stress.

What Makes QJ 236 N2MA Bearing a Preferred Choice?
In wind turbines, QJ 236 N2MA Bearing’s robust construction and high load capacity make it ideal for supporting rotor shafts. Its P6 tolerance class ensures precision in demanding environments.

Built for Heavy-Duty Use: QJ 236 N2MA Bearing
This bearing excels in steel mills and mining equipment, where its chrome steel rings and balls withstand extreme conditions. The open design allows for easy lubrication, extending service life.

Automotive vs Aerospace: Applications of QJ 236 N2MA Bearing
In automotive applications, QJ 236 N2MA Bearing is found in large truck transmissions, while in aerospace, it supports auxiliary systems. Its metric sizing ensures compatibility across industries.

Q&A

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