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Heavy Duty Needle Roller Bearings (Machined) RNA4872-XL
Heavy Duty Needle Roller Bearings (Machined) RNA4872-XL

Heavy Duty Needle Roller Bearings (Machined) RNA4872-XL

The RNA4872-XL is a heavy-duty needle roller bearing with a 390mm bore and 440mm outer diameter, designed for radial loads. Made from sturdy steel, it handles dynamic loads up to 166500 lbf and static loads up to 454500 lbf.
Its open design requires regular lubrication, while the press-fit mounting ensures a secure attachment. The bearing operates smoothly at speeds up to 1200 RPM and works in temperatures from -20°C to 110°C.
This model is interchangeable with INA bearings, making it a practical choice for replacements. Ideal for heavy machinery or industrial equipment where high radial loads are common.
Weighing 14.8kg, it’s built to last in demanding conditions. Compliant with RoHS standards for safe use.

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Product Parameters

  • Part Number RNA4872-XL
  • Brand TFL
  • Interchangeable brand INA
  • System of Measurement Metric
  • Bearing Type Roller
  • Roller Bearing Type Needle
  • For Load Direction Radial
  • Construction Single Row
  • Seal Type Open
  • Inner Ring No
  • Series Without Inner Ring
  • Bore Dia 390 mm
  • Bore Dia Tolerance 0.062mm to 0.098mm
  • Outer Dia 440 mm
  • Outer Dia Tolerance -0.045mm to 0
  • Width 80 mm
  • Width Tolerance -0.4mm to 0
  • Ring Material Steel
  • Cage Material Steel
  • Roller Material Steel
  • Dynamic Radial Load 166500 lbf
  • Static Radial Load 454500 lbf
  • Lubrication Required
  • Shaft Mount Type Press Fit
  • Temperature Range -20 to 110 °C
  • RoHS Compliant
  • Max Speed 1200 rpm
  • Weight 14800 g

Features

Performance Features of RNA4872-XL Bearing
RNA4872-XL Bearing is built for heavy-duty radial loads, with a dynamic radial load capacity of 166,500 lbf.
Its steel construction ensures durability and reliability in demanding industrial applications.
The open design allows for easy lubrication, maintaining smooth operation under high stress.
With a maximum speed of 1,200 rpm, it balances performance and longevity.
RNA4872-XL Bearing operates efficiently in temperatures ranging from -20°C to 110°C.
Its press-fit shaft mount design simplifies installation, reducing downtime.
The needle roller design maximises load distribution, enhancing its service life.
Weighing 14,800 g, it is robust yet manageable for its size and capacity.

Application

Industrial Uses of RNA4872-XL Bearing
RNA4872-XL Bearing is commonly used in heavy machinery like construction equipment and mining drills, where its high radial load capacity handles intense pressure. The open design simplifies lubrication, ensuring long service life in rugged conditions.
Where Is RNA4872-XL Bearing Used?
You’ll often spot RNA4872-XL Bearing in agricultural gear such as combine harvesters, where its steel construction withstands dust and debris. Its press-fit mounting also makes installation straightforward for field repairs.
Built for Heavy-Duty Use: RNA4872-XL Bearing
RNA4872-XL Bearing excels in industrial gearboxes, supporting smooth rotation under substantial loads. The needle roller design offers a compact solution without compromising strength, ideal for space-constrained setups.
Automotive vs Aerospace: Applications of RNA4872-XL Bearing
In automotive systems, RNA4872-XL Bearing reinforces truck transmissions, while in aerospace, it aids auxiliary units like hydraulic pumps. The metric sizing ensures compatibility across global machinery standards.
Key Fields for RNA4872-XL Bearing
RNA4872-XL Bearing is vital in wind turbine pitch systems, where reliability matters. Its steel cage and rollers endure constant movement, making it a trusted choice for renewable energy infrastructure.

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