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

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

The 47487-47420D is a two-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 in demanding conditions.

Its double-row construction provides extra stability, while the open design allows for easy lubrication. The bearing operates smoothly in temperatures from -30°C to 110°C, making it versatile for various environments.

With standard radial clearance and ABEC-1 rating, it offers reliable precision for industrial use. Ideal for heavy machinery or automotive applications where combined loads are common.

Weighing 6.74 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, ensuring safe and eco-friendly use.

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Product Parameters

  • Part Number 47487-47420D
  • 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 47420D
  • 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 47487-47420D Bearing Handle Combined Loads?

47487-47420D 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, enhancing durability and stability.
With a temperature range of -30° to 110°C, it performs well in various operating conditions.

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

47487-47420D Bearing features a robust steel cage that maintains roller alignment under high stress.
The chrome steel construction resists wear, extending the bearing’s service life in demanding environments.
Its standard radial clearance options (C3/C4/C5) allow for flexibility in different applications.
The open design simplifies lubrication, ensuring smooth operation over time.

Engineered for Reliability: 47487-47420D Bearing

47487-47420D Bearing’s double-row design provides excellent load distribution, reducing stress on individual rollers.
The precise tolerances in its construction ensure consistent performance even under combined loads.
With a dynamic thrust rating of 6,420 lbf, it handles axial forces effectively.
The bearing’s ABEC-1 rating guarantees dependable precision for industrial use.

Structural Advantages of 47487-47420D Bearing

47487-47420D Bearing’s tapered roller design minimises friction, promoting efficient operation.
The chrome steel materials resist corrosion, making it suitable for harsh environments.
Its standard cup type simplifies installation and replacement processes.
Weighing 6.74 lb, it balances strength with manageable size for various machinery.

Application

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

What Makes 47487-47420D Bearing a Preferred Choice?
In automotive applications, 47487-47420D Bearing is ideal for wheel hubs and differential systems, thanks to its tapered roller design and high load capacity. The inch sizing makes it a perfect fit for American and British vehicle models.

Built for Heavy-Duty Use: 47487-47420D Bearing
This bearing excels in industrial gearboxes and power transmission systems, where its open design allows for easy lubrication and maintenance. The steel cage adds extra strength, making it reliable for long-term use.

Automotive vs Aerospace: Applications of 47487-47420D Bearing
While 47487-47420D Bearing is popular in trucks and off-road vehicles for its load-bearing capacity, it also finds use in aerospace landing gear systems. Its temperature range and ABEC-1 rating ensure consistent performance in varied conditions.

Perfect Fit for Automation: 47487-47420D Bearing
In automated production lines, 47487-47420D Bearing supports robotic arms and conveyor systems, where precision and reliability are key. The standard radial clearance option allows for smooth operation in high-speed scenarios.

Q&A

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