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3479-3423D TDO (Two-Row Double-Outer Race) (Imperial)

3479-3423D TDO (Two-Row Double-Outer Race) (Imperial)

The 3479-3423D is a two-row tapered roller bearing with a 1.4375″ bore and 3.25″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 41000 lbf and is designed for long-lasting performance.

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.

This model fits standard 3400 series applications and comes with a steel cage for durability. Ideal for heavy-duty machinery or industrial equipment where both radial and thrust loads are present.

Weighing 3.71 lb, it’s a robust choice for demanding environments. Compliant with RoHS and REACH standards, ensuring safe and reliable use.

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Product Parameters

  • Part Number 3479-3423D
  • Brand TFL
  • Size 1.4375" x 3.25" x 1.1721"
  • Bore Dia 1.4375"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.25"
  • Outer Dia Tolerance +0.001" to 0
  • Double Cup Width 2.1875"
  • Double Cup Width Tolerance +0.003" to -0.01
  • Cone Width 1.1721"
  • Cone Width Tolerance +0.002" to -0.01
  • Bearing Width Across Cups 2.6251"
  • Bearing Width Across Cups Tolerance +0.008" to 0
  • Cup Backface ToClear Radius 0.03"
  • Cone Backface Backing Diameter 1.79"
  • Cup Frontface Backing Diameter 2.99"
  • Cage Cone Backface Clearance 0.04"
  • Dynamic Radial Load 41000 lbf
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 3479
  • Cup Part Number 3423D
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Double Row
  • Seal Type Open
  • Cups Type Standard
  • Series 3400
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Rating(One Row 90 Million Revolutions) 6100 lbf
  • Dynamic Thrust Rating(90 Million Revolutions) 3820 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions) 10600 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 3.71 lb

Features

Performance Features of 3479-3423D Bearing

3479-3423D Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 41,000 lbf, ensuring reliable performance in heavy-duty applications.

The double-row tapered roller design enhances stability and load distribution.
This construction allows 3479-3423D Bearing to handle both radial and thrust loads efficiently.

With a temperature range of -30° to 110°C, it performs well in various operating conditions.
The standard radial clearance options provide flexibility for different installation needs.

3479-3423D Bearing’s steel cage maintains roller alignment, reducing wear and extending service life.
Its open design simplifies lubrication, ensuring smooth operation over time.

Application

Industrial Uses of 3479-3423D Bearing
The 3479-3423D Bearing is commonly used in heavy machinery like construction equipment, where its double-row design handles combined radial and thrust loads effectively. Its chrome steel construction ensures durability in demanding environments.

Where Is 3479-3423D Bearing Used?
You’ll often find the 3479-3423D Bearing in agricultural machinery, such as tractors and harvesters, where its tapered roller design provides reliable performance. The open seal type allows for easy lubrication, extending its service life.

Built for Heavy-Duty Use: 3479-3423D Bearing
This bearing excels in industrial gearboxes, thanks to its high dynamic radial load capacity. The standard radial clearance makes it versatile for various applications, from conveyor systems to mining equipment.

Automotive vs Aerospace: Applications of 3479-3423D Bearing
In automotive applications, the 3479-3423D Bearing supports wheel hubs and drivetrains, while in aerospace, it’s used in landing gear systems. Its inch sizing ensures compatibility with both American and international standards.

Practical Applications of 3479-3423D Bearing
The 3479-3423D Bearing is ideal for wind turbines, where its ability to handle high loads and harsh conditions is crucial. The steel cage adds extra strength, making it a dependable choice for renewable energy systems.

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