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Single Row Cylindrical Roller Bearings Without Inner Ring RNU 306

Single Row Cylindrical Roller Bearings Without Inner Ring RNU 306

The RNU 306 is a single-row cylindrical roller bearing without an inner ring, featuring a 42mm diameter under rollers and a 72mm outer diameter. Made from chrome steel, it’s built to handle combined loads with a dynamic radial load capacity of 8302 lbf.
Its open design allows for easy lubrication with grease or oil, and the brass cage ensures smooth operation at speeds up to 12000 RPM. The bearing operates efficiently 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 industrial machinery or gearboxes where combined loads are present.
Weighing 0.26kg, it’s a sturdy yet lightweight option. Compliant with RoHS and REACH standards, it’s safe for various industrial uses.

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Product Parameters

  • Part Number RNU 306
  • Brand TFL
  • Interchangeable SKF
  • Diameter Under Rollers 42 mm
  • Diameter Under Rollers Tolerance -0.012mm to 0
  • Outer Dia 72 mm
  • Outer Dia Tolerance -0.013mm to 0
  • Width 19 mm
  • Width Tolerance -0.12mm to 0
  • Shoulder Dia Outer Ring 56.98 mm
  • Corner Radius(r1,2)(min.) 1.1 mm
  • System of Measurement Metric
  • Roller Bearing Type Cylindrical
  • For Load Direction Combined
  • Construction Single Row
  • Inner Ring Type Without
  • Seal Type Open
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Brass cage, roller centred
  • Dynamic Radial Load 8302 lbf
  • Static Radial Load 7538 lbf
  • Max Speed 12000 rpm
  • Lubrication Grease, Oil
  • Temperature Range -30° to 110 °C
  • RoHS Compliant
  • REACH Compliant
  • Weight 0.26 kg
  • Weight 0.26 kg
Single Row Cylindrical Roller Bearings Without Inner Ring RNU 306 dimension drawing
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Features

Why Choose RNU 306 Bearing for Precision Tasks?
RNU 306 Bearing features a chrome steel construction, ensuring durability and resistance to wear.
Its brass cage keeps the rollers centred, enhancing stability and reducing friction during operation.
With a dynamic radial load capacity of 8302 lbf, it handles combined loads efficiently.
The bearing operates smoothly at speeds up to 12,000 rpm, making it suitable for high-performance applications.

Application

Industrial Uses of RNU 306 Bearing
RNU 306 Bearing is commonly used in heavy machinery like gearboxes and pumps, where its cylindrical roller design handles combined loads efficiently. The open seal type simplifies lubrication, making it suitable for high-speed operations up to 12000 rpm.
What Makes RNU 306 Bearing a Preferred Choice?
In automotive applications, RNU 306 Bearing fits well in wheel hubs and transmissions due to its chrome steel construction and brass cage. Its metric sizing ensures compatibility with various vehicle designs, offering reliable performance under stress.
Perfect Fit for Automation: RNU 306 Bearing
For robotic arms and conveyor systems, RNU 306 Bearing’s single-row design provides precision and durability. The absence of an inner ring allows for custom shaft configurations, ideal for tailored automation solutions.
Medical vs Industrial: Where RNU 306 Bearing Excels
While RNU 306 Bearing isn’t typically used in medical devices, it shines in industrial settings like printing presses. Its grease or oil lubrication options adapt to different environmental demands, ensuring long service life.
Essential Roles of RNU 306 Bearing
In household appliances like washing machines, RNU 306 Bearing’s static radial load capacity of 7538 lbf ensures smooth operation. The temperature range of -30° to 110°C makes it versatile for both indoor and outdoor use.

Q&A

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