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47487-47420DC TDO (Two-Row Double-Outer Race) (Imperial)

47487-47420DC TDO (Two-Row Double-Outer Race) (Imperial)

The 47487-47420DC is a double-row tapered roller bearing with a 2.75″ bore and 4.7244″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 70000 lbf and is designed for long-lasting performance.

Its open design allows easy lubrication, while the steel cage ensures smooth operation. The bearing works well in temperatures from -30°C to 110°C, making it suitable for various environments.

This model is part of the 47400 series and comes with standard cups for easy installation. Ideal for heavy-duty applications like truck axles or industrial gearboxes where high radial and thrust loads are common.

Weighing 6.74 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a reliable choice for replacements or new installations.

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Product Parameters

  • Part Number 47487-47420DC
  • Brand TFL
  • Size 2.75" x 4.7244" x 1.2813"
  • Bore Dia 2.75"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 4.7244"
  • Outer Dia Tolerance +0.001" to 0
  • Double Cup Width 2.3125"
  • Double Cup Width Tolerance +0.003" to -0.01
  • Cone Width 1.2813"
  • Cone Width Tolerance +0.002" to -0.01
  • Bearing Width Across Cups 2.8124"
  • Bearing Width Across Cups Tolerance +0.008" to 0
  • Cup Backface ToClear Radius 0.03"
  • Cone Backface Backing Diameter 3.31"
  • Cup Frontface Backing Diameter 4.53"
  • Cage Cone Backface Clearance 0.07"
  • Dynamic Radial Load 70000 lbf
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 47487
  • Cup Part Number 47420DC
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Double Row
  • Seal Type Open
  • Cups Type Standard
  • Series 47400
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Rating(One Row 90 Million Revolutions) 10400 lbf
  • Dynamic Thrust Rating(90 Million Revolutions) 6420 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions) 18100 lbf
  • Lubrication Required
  • Temperature Range -30° to 110 °C
  • ABEC Rating ABEC-1
  • Radial Clearance Standard (Available in C3/C4/C5)
  • RoHS Compliant
  • REACH Compliant
  • Weight 6.74 lb

Features

How Does 47487-47420DC Bearing Handle Combined Loads?

47487-47420DC Bearing is built with chrome steel rings and rollers, offering strong resistance to both radial and thrust loads.
Its dynamic radial load capacity reaches 70,000 lbf, ensuring reliable performance in heavy-duty applications.
The double-row tapered roller design distributes loads evenly, reducing stress and extending service life.
With a temperature range of -30° to 110°C, it performs well in various operating conditions.

What Makes 47487-47420DC Bearing Suitable for Heavy-Duty Applications?

47487-47420DC Bearing features a double-row tapered roller design, ideal for handling combined loads.
The chrome steel construction provides durability and resistance to wear in demanding environments.
Its dynamic radial rating of 18,100 lbf (two-row) ensures long-lasting performance under heavy stress.
The standard radial clearance option allows for flexibility in different applications.

Engineered for Reliability: 47487-47420DC Bearing

47487-47420DC Bearing is designed with precision tolerances, ensuring smooth operation under combined loads.
The steel cage maintains roller alignment, reducing friction and improving efficiency.
With a dynamic thrust rating of 6,420 lbf, it handles axial loads effectively.
The open seal type allows for easy lubrication, maintaining optimal performance over time.

Steel vs Ceramic Bearings: Strengths of 47487-47420DC Bearing

47487-47420DC Bearing uses chrome steel for both rings and rollers, offering excellent strength and durability.
Its double-row design provides superior load distribution compared to single-row alternatives.
The bearing’s ABEC-1 rating ensures consistent precision in industrial applications.
Weighing 6.74 lb, it balances robustness with manageable installation.

Application

Industrial Uses of 47487-47420DC Bearing
The 47487-47420DC Bearing is commonly used in heavy machinery, such as construction equipment and mining tools, where its double-row design handles combined radial and thrust loads efficiently. Its chrome steel construction ensures durability in demanding environments.

In automotive applications, 47487-47420DC Bearing supports wheel hubs and drivetrain components, providing reliable performance under high stress. The inch sizing makes it a practical choice for vehicles using imperial measurements.

For industrial automation, 47487-47420DC Bearing is ideal for conveyor systems and robotic arms, where precision and load capacity are key. The open seal design allows for easy lubrication, extending its service life.

Where Is 47487-47420DC Bearing Used?
You’ll often find 47487-47420DC Bearing in agricultural machinery, like tractors and harvesters, where its tapered roller design handles uneven loads smoothly. The steel cage adds extra strength for long-term use.

In material handling equipment, 47487-47420DC Bearing ensures smooth operation in forklifts and cranes. Its standard radial clearance makes it adaptable to various load conditions.

Built for Heavy-Duty Use: 47487-47420DC Bearing
47487-47420DC Bearing excels in forestry equipment, such as log splitters and sawmills, thanks to its robust construction. The double-row setup distributes loads evenly, reducing wear.

For railway applications, 47487-47420DC Bearing supports axle boxes, where its combined load capacity is essential. The ABEC-1 rating ensures consistent performance at moderate speeds.

Automotive vs Aerospace: Applications of 47487-47420DC Bearing
In automotive settings, 47487-47420DC Bearing is trusted for differential systems, offering reliable performance under heavy loads. Its inch measurements align with many US-made vehicles.

While not typically used in aerospace, 47487-47420DC Bearing suits ground support equipment, like tow tractors, where durability matters. The temperature range ensures functionality in varying conditions.

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