lianxidianhua 086 15806631151 send-sms info@sdtflbearing.com
/
/
Four-Point Contact Angular Contact Ball Bearings (General) QJ 306 N2MA
Four-Point Contact Angular Contact Ball Bearings (General) QJ 306 N2MA

Four-Point Contact Angular Contact Ball Bearings (General) QJ 306 N2MA

The QJ 306 N2MA is a four-point contact angular contact ball bearing with a 30mm bore and 72mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 11925 lbf and operates smoothly at speeds up to 17000 RPM.

Its single-row design and brass cage ensure reliable performance, while the open construction allows for easy lubrication. The bearing works well in temperatures ranging from -30°C to 110°C.

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

Weighing 0.42kg, it’s a sturdy yet manageable option for industrial use. Compliant with RoHS and REACH standards for safety and environmental care.

SEND INQUIRY

"*" indicates required fields

This field is for validation purposes and should be left unchanged.

Product Parameters

  • Part Number QJ 306 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 30 mm
  • Bore Dia Tolerance -0.008mm to 0
  • Outer Dia 72 mm
  • Outer Dia Tolerance -0.011mm to 0
  • Width 19 mm
  • Width Tolerance -0.05mm to 0
  • External Diameter On Inner Ring (Large Side Face) 40.5 mm
  • Internal Diameter On Outer Ring 58.2 mm
  • Chamfer Dimension 1.1 mm
  • Distance Pressure Point (a) 36 mm
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Brass
  • Dynamic Radial Load 11925 lbf
  • Static Radial Load 9338 lbf
  • Max Speed 17000 rpm
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Tolerance Class P6 (ABEC-3)
  • ROHS Compliant
  • REACH Compliant
  • Weight 0.42 kg

Features

Performance Features of QJ 306 N2MA Bearing

QJ 306 N2MA Bearing is built with chrome steel rings and balls, offering excellent resistance to radial loads.
Its dynamic radial load capacity reaches 11925 lbf, ensuring reliable performance in various applications.

The brass cage maintains ball alignment, reducing friction and extending the bearing’s life.
With a maximum speed of 17,000 rpm, it delivers both durability and high-speed efficiency.

QJ 306 N2MA Bearing operates smoothly in temperatures ranging from -30° to 110 °C.
Its open design allows for easy lubrication, ensuring consistent performance over time.

The precise P6 tolerance class ensures high accuracy, making it suitable for demanding tasks.
Its four-point contact design provides stability, even under heavy loads.

Application

Key Fields for QJ 306 N2MA Bearing
QJ 306 N2MA Bearing is commonly used in industrial machinery, especially in gearboxes and pumps, where its four-point contact design handles combined radial and axial loads efficiently. The brass cage ensures smooth operation even under high-speed conditions.

In automotive applications, QJ 306 N2MA Bearing fits well in wheel hubs and transmissions, offering reliable performance with its chrome steel construction. Its metric sizing makes it a versatile choice for various vehicle models.

For automation systems, QJ 306 N2MA Bearing supports robotic arms and conveyor belts, where precision and durability are key. The open seal design allows for easy lubrication, extending its service life in demanding environments.

Medical imaging devices also benefit from QJ 306 N2MA Bearing’s stable performance, thanks to its P6 tolerance class. The temperature range ensures reliability in both clinical and laboratory settings.

Q&A

SEND INQUIRY

"*" indicates required fields

This field is for validation purposes and should be left unchanged.