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3477-3423D TDO (Two-Row Double-Outer Race) (Imperial)

3477-3423D TDO (Two-Row Double-Outer Race) (Imperial)

The 3477-3423D is a two-row tapered roller bearing with a 1.3125″ bore and 3.25″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 41,000 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 ranging from -30°C to 110°C.

This model is part of the 3400 series, offering reliable performance for heavy-duty applications like industrial gearboxes or axle systems. The standard radial clearance ensures compatibility with various setups.

Weighing 3.87 lb, it’s a robust choice for machinery requiring durable bearing solutions. Compliant with RoHS and REACH standards, it’s a safe option for various industrial uses.

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Product Parameters

  • Part Number 3477-3423D
  • Brand TFL
  • Size 1.3125" x 3.25" x 1.1721"
  • Bore Dia 1.3125"
  • 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 1.93"
  • 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 3477
  • 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 3.87 lb

Features

Performance Features of 3477-3423D Bearing

3477-3423D 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 demanding conditions.
The double-row tapered roller design distributes loads evenly, reducing wear and extending service life.
With a standard radial clearance, it provides smooth operation across various applications.

How Is 3477-3423D Bearing Engineered for Reliability?

3477-3423D Bearing features a steel cage that keeps the rollers aligned, minimising friction and wear.
The chrome steel construction ensures durability, even under heavy radial and thrust loads.
Its double-row design enhances stability, making it suitable for high-load applications.
The bearing operates efficiently within a temperature range of -30° to 110°C.

Built for Durability: 3477-3423D Bearing

3477-3423D Bearing’s tapered roller design handles combined loads with ease, thanks to its robust construction.
The chrome steel rollers and rings provide excellent wear resistance, ensuring long-term reliability.
Its open seal type allows for easy lubrication, maintaining optimal performance.
With an ABEC-1 rating, it balances precision and durability for various industrial uses.

Steel vs Ceramic Bearings: Strengths of 3477-3423D Bearing

3477-3423D Bearing uses chrome steel for both rollers and rings, offering a cost-effective yet durable solution.
The steel cage ensures proper roller alignment, reducing friction and extending bearing life.
Its dynamic radial load capacity of 41,000 lbf makes it suitable for heavy-duty applications.
The bearing’s standard radial clearance allows for smooth operation in diverse conditions.

Application

Industrial Uses of 3477-3423D Bearing
The 3477-3423D Bearing is commonly used in heavy machinery like construction equipment and agricultural vehicles, where its double-row design handles combined radial and thrust loads efficiently. Its chrome steel construction ensures durability in demanding environments.

In automotive applications, 3477-3423D Bearing supports wheel hubs and drivetrain components, providing reliable performance under varying load conditions. The imperial sizing makes it a preferred choice for North American vehicle manufacturers.

For industrial automation, 3477-3423D Bearing excels in conveyor systems and robotic arms, where precise movement and load capacity are essential. The open seal design allows for easy lubrication, extending its service life.

Where Is 3477-3423D Bearing Used?
You’ll often find 3477-3423D Bearing in mining equipment, where its tapered roller design handles high radial loads with ease. The steel cage adds extra strength, making it suitable for rough operating conditions.

In wind turbines, 3477-3423D Bearing plays a key role in rotor assemblies, ensuring smooth rotation under heavy loads. Its ABEC-1 rating provides a balance of precision and affordability for large-scale applications.

Built for Heavy-Duty Use: 3477-3423D Bearing
3477-3423D Bearing is ideal for forklifts and cranes, where its double-row construction distributes loads evenly. The standard radial clearance offers flexibility for various industrial needs.

In railway applications, 3477-3423D Bearing supports axle boxes, providing stability and reducing wear over long distances. Its temperature range of -30° to 110°C ensures reliability in diverse climates.

Automotive vs Aerospace: Applications of 3477-3423D Bearing
In automotive systems, 3477-3423D Bearing is trusted for differentials and transmissions, thanks to its robust design. The inch measurements simplify replacements in older vehicle models.

For aerospace ground equipment, 3477-3423D Bearing handles heavy loads in tow tractors and loading platforms. Its compliance with RoHS and REACH standards makes it an environmentally friendly choice.

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