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Single Row Cylindrical Roller Bearings Without Inner Ring RNU 203 TN9

Single Row Cylindrical Roller Bearings Without Inner Ring RNU 203 TN9

The RNU 203 TN9 is a single-row cylindrical roller bearing without an inner ring, featuring a 22.9mm diameter under rollers and a 40mm outer diameter. Made from chrome steel, it handles combined loads up to 2632 lbf and spins at speeds up to 22000 RPM.
Its open design and PA66 cage ensure smooth operation and easy lubrication with grease or oil. The bearing performs reliably in temperatures from -30°C to 110°C.
This model is interchangeable with SKF bearings, making it a practical choice for replacements. Suitable for applications like electric motors or pumps where high-speed performance is needed.
Weighing just 0.051kg, it’s lightweight yet durable. Compliant with RoHS and REACH standards for safe use.

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Product Parameters

  • Part Number RNU 203 TN9
  • Brand TFL
  • Interchangeable SKF
  • Diameter Under Rollers 22.9 mm
  • Diameter Under Rollers Tolerance -0.01mm to 0
  • Outer Dia 40 mm
  • Outer Dia Tolerance -0.011mm to 0
  • Width 12 mm
  • Width Tolerance -0.12mm to 0
  • Shoulder Dia Outer Ring 31.5 mm
  • Corner Radius(r1,2)(min.) 0.6 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 PA66 cage, rolling element centred
  • Dynamic Radial Load 2632 lbf
  • Static Radial Load 2138 lbf
  • Max Speed 22000 rpm
  • Lubrication Grease, Oil
  • Temperature Range -30° to 110 °C
  • RoHS Compliant
  • REACH Compliant
  • Weight 0.051 kg
  • Weight 0.051 kg
Single Row Cylindrical Roller Bearings Without Inner Ring RNU 203 TN9 dimension drawing
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Features

Why Choose RNU 203 TN9 Bearing for Precision Tasks?
RNU 203 TN9 Bearing features a chrome steel construction, ensuring durability and resistance to wear.
Its PA66 cage keeps the rollers centred, enhancing stability and reducing friction during operation.
With a dynamic radial load capacity of 2632 lbf, it handles combined loads efficiently.
The bearing operates smoothly at speeds up to 22,000 rpm, making it suitable for high-performance applications.

Application

Industrial Uses of RNU 203 TN9 Bearing
RNU 203 TN9 Bearing is commonly used in machine tools, where its cylindrical roller design handles combined loads efficiently. The open seal type simplifies lubrication, making it suitable for high-speed operations up to 22000 rpm.
In automotive applications, RNU 203 TN9 Bearing fits well in gearboxes and drivetrains, thanks to its chrome steel construction. Its metric sizing ensures compatibility with various vehicle models, offering reliable performance under radial and axial loads.
For automation systems, RNU 203 TN9 Bearing works seamlessly in robotic arms and conveyor belts. The PA66 cage reduces friction, enhancing durability in continuous operation environments.
Where Is RNU 203 TN9 Bearing Used?
RNU 203 TN9 Bearing is ideal for industrial fans, where its high-speed capability and grease lubrication ensure long service life. The absence of an inner ring allows for custom shaft designs, adding flexibility.
In medical devices like centrifuges, RNU 203 TN9 Bearing provides smooth rotation due to its precise tolerances. The chrome steel rollers resist wear, maintaining accuracy in critical applications.
Built for Heavy-Duty Use: RNU 203 TN9 Bearing
RNU 203 TN9 Bearing excels in construction equipment, handling heavy loads with ease. Its robust design and temperature range make it reliable in harsh outdoor conditions.
For printing machinery, RNU 203 TN9 Bearing ensures consistent paper feed with minimal vibration. The combined load capacity supports the dynamic demands of high-speed printing.

Q&A

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