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Double Row Angular Contact Ball Bearings (General) 3309 DNRCBM

Double Row Angular Contact Ball Bearings (General) 3309 DNRCBM

The 3309 DNRCBM is a double-row angular contact ball bearing with a 45mm bore and 100mm outer diameter, crafted from sturdy chrome steel. It manages radial loads up to 13905 lbf and operates smoothly at speeds up to 6300 RPM.

Its open design and brass cage ensure durability and easy maintenance, while the P6 tolerance class offers reliable precision. The bearing performs 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 pumps or gearboxes where angular contact and radial loads are key.

Weighing 1.5kg, 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 3309 DNRCBM
  • Brand TFL & OEM
  • Interchangeable With SKF
  • System of Measurement Metric
  • Bearing Type Ball
  • For Load Direction Angular Contact
  • Construction Double Row
  • Seal Type Open
  • Bore Dia 45 mm
  • Bore Dia Tolerance -0.01mm to 0
  • Outer Dia 100 mm
  • Outer Dia Tolerance -0.013mm to 0
  • Width 39.7 mm
  • Width Tolerance -0.05mm to 0
  • Chamfer Dimension 1.5 mm
  • Distance Pressure Point (a) 79 mm
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Brass
  • Dynamic Radial Load 13905 lbf
  • Static Radial Load 11700 lbf
  • Max Speed 6300 rpm
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Tolerance Class P6 (ABEC-3)
  • ROHS Compliant
  • REACH Compliant
  • Weight 1.5 kg
  • Internal Diameter On Outer Ring 67.95 mm
  • Price（$） 86.53 mm
Double Row Angular Contact Ball Bearings (General) 3309 DNRCBM dimension drawing
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Features

Performance Features of 3309 DNRCBM Bearing

3309 DNRCBM Bearing is built with chrome steel rings and balls, offering strong resistance to radial loads.
Its dynamic radial load capacity reaches 13905 lbf, ensuring reliable performance in demanding conditions.

The brass cage maintains ball alignment, reducing friction and extending operational life.
With a maximum speed of 6,300 rpm, it balances efficiency and durability for various applications.

3309 DNRCBM Bearing operates smoothly in temperatures ranging from -30° to 110°C.
Its double-row design enhances stability, making it suitable for angular contact requirements.

Application

Industrial Uses of 3309 DNRCBM Bearing
3309 DNRCBM Bearing is commonly used in machine tools, where its double-row design handles combined radial and axial loads efficiently. The brass cage ensures smooth operation even at moderate speeds, making it suitable for spindle applications.

Where Is 3309 DNRCBM Bearing Used?
In automotive transmissions, 3309 DNRCBM Bearing provides reliable support for gears and shafts, thanks to its high dynamic load capacity. The P6 tolerance class ensures precise alignment, reducing vibration in high-performance vehicles.

Built for Heavy-Duty Use: 3309 DNRCBM Bearing
This bearing excels in conveyor systems, where its chrome steel construction withstands continuous operation. The lubricated design minimises maintenance needs, ideal for industrial environments.

Automotive vs Aerospace: Applications of 3309 DNRCBM Bearing
In automotive wheel hubs, 3309 DNRCBM Bearing offers durability under varying loads, while its metric sizing fits European models. For aerospace actuators, its precision meets tight tolerance requirements without compromising performance.

Perfect Fit for Automation: 3309 DNRCBM Bearing
Robotic arms benefit from 3309 DNRCBM Bearing’s angular contact design, enabling precise movement control. The open seal allows for custom lubrication, adapting to different automation speeds.

Q&A

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