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Four-Point Contact Angular Contact Ball Bearings (General) QJ 1021 N2MA/C4

Four-Point Contact Angular Contact Ball Bearings (General) QJ 1021 N2MA/C4

The QJ 1021 N2MA/C4 is a four-point contact angular contact ball bearing with a 105mm bore and 160mm outer diameter, crafted from sturdy chrome steel. It manages radial loads up to 30375 lbf and operates smoothly at speeds reaching 6700 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 machinery or heavy equipment where radial loads are prevalent.

Weighing 2kg, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe use.

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Product Parameters

  • Part Number QJ 1021 N2MA/C4
  • 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 105 mm
  • Bore Dia Tolerance -0.015mm to 0
  • Outer Dia 160 mm
  • Outer Dia Tolerance -0.018mm to 0
  • Width 26 mm
  • Width Tolerance -0.05mm to 0
  • External Diameter On Inner Ring (Large Side Face) 124 mm
  • Internal Diameter On Outer Ring 141 mm
  • Chamfer Dimension 2 mm
  • Distance Pressure Point (a) 93 mm
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Brass
  • Dynamic Radial Load 30375 lbf
  • Static Radial Load 38250 lbf
  • Max Speed 6700 rpm
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Tolerance Class P6 (ABEC-3)
  • ROHS Compliant
  • REACH Compliant
  • Weight 2 kg
Four-Point Contact Angular Contact Ball Bearings (General) QJ 1021 N2MA/C4 dimension drawing
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Features

Performance Features of QJ 1021 N2MA/C4 Bearing

QJ 1021 N2MA/C4 Bearing is designed with chrome steel rings and balls, offering strong resistance to radial loads.
Its dynamic radial load capacity reaches 30375 lbf, ensuring reliable performance in demanding applications.

The brass cage maintains ball alignment, reducing friction and extending service life.
With a maximum speed of 6,700 rpm, it balances durability and efficiency.

QJ 1021 N2MA/C4 Bearing operates smoothly in temperatures ranging from -30° to 110°C.
Its open design allows for easy lubrication, ensuring consistent performance.

The precision P6 tolerance class ensures accurate operation in high-performance applications.
This makes QJ 1021 N2MA/C4 Bearing suitable for various industrial uses.

Application

Key Fields for QJ 1021 N2MA/C4 Bearing
QJ 1021 N2MA/C4 Bearing is widely used in industrial machinery, especially in applications requiring high radial and axial load capacity, such as heavy-duty gearboxes and large conveyor systems. Its brass cage ensures smooth operation even under demanding conditions.

In automotive applications, QJ 1021 N2MA/C4 Bearing is ideal for supporting components like differential systems and wheel hubs, where its four-point contact design enhances stability. The metric sizing makes it a versatile choice for various vehicle models.

For automation and robotics, QJ 1021 N2MA/C4 Bearing provides reliable performance in robotic arms and precision machinery, thanks to its chrome steel construction. The open seal type allows for easy lubrication, extending its service life.

In medical imaging equipment, QJ 1021 N2MA/C4 Bearing’s precise tolerance class ensures smooth and accurate movement. Its temperature resistance makes it suitable for devices operating in controlled environments.

For consumer electronics like high-performance printers, QJ 1021 N2MA/C4 Bearing offers durability and quiet operation. The balanced load distribution reduces wear, making it a cost-effective solution for long-term use.

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