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438W-432DC TDO (Two-Row Double-Outer Race) (Imperial)

438W-432DC TDO (Two-Row Double-Outer Race) (Imperial)

The 438W-432DC is a two-row tapered roller bearing with a 1.75″ bore and 3.75″ outer diameter, built from sturdy chrome steel for long-lasting performance. It handles combined loads, with a dynamic radial load capacity of 49,700 lbf and a dynamic thrust rating of 3,600 lbf per row.

Its open design allows for easy lubrication, while the steel cage ensures smooth operation even under heavy loads. The bearing works well in temperatures ranging from -30°C to 110°C, making it versatile for various conditions.

This double-row design is ideal for applications requiring high radial and thrust load support, such as industrial gearboxes or heavy machinery. With standard radial clearance and ABEC-1 precision, it offers reliable performance for demanding environments.

Weighing 4.32 lb, it’s a robust choice for replacements or new installations. Compliant with RoHS and REACH standards, it’s a safe and dependable option for your needs.

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Product Parameters

  • Part Number 438W-432DC
  • Brand TFL
  • Size 1.75" x 3.75" x 1.1772"
  • Bore Dia 1.75"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.75"
  • Outer Dia Tolerance +0.001" to 0
  • Double Cup Width 2"
  • Double Cup Width Tolerance +0.003" to -0.01
  • Cone Width 1.1772"
  • Cone Width Tolerance +0.002" to -0.01
  • Bearing Width Across Cups 2.4376"
  • Bearing Width Across Cups Tolerance +0.008" to 0
  • Cup Backface ToClear Radius 0.03"
  • Cone Backface Backing Diameter 2.24"
  • Cup Frontface Backing Diameter 3.46"
  • Cage Cone Backface Clearance 0.04"
  • Dynamic Radial Load 49700 lbf
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 438W
  • Cup Part Number 432DC
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Double Row
  • Seal Type Open
  • Cups Type Standard
  • Series 435
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Rating(One Row 90 Million Revolutions) 7400 lbf
  • Dynamic Thrust Rating(90 Million Revolutions) 3600 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions) 12900 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 4.32 lb

Features

How Is 438W-432DC Bearing Engineered for Reliability?

438W-432DC Bearing features a double-row tapered roller design, providing strong resistance to combined loads.
Its chrome steel construction ensures durability, with a dynamic radial load capacity of 49,700 lbf.

The precision-engineered cage keeps the rollers aligned, reducing friction and extending service life.
With a standard radial clearance, it offers reliable performance in various industrial applications.

438W-432DC Bearing operates efficiently within a temperature range of -30° to 110°C.
Its open design allows for easy lubrication, ensuring smooth operation over time.

Application

Industrial Uses of 438W-432DC Bearing
438W-432DC Bearing is commonly used in heavy machinery like construction equipment and mining tools, where its double-row design handles combined radial and thrust loads efficiently. The chrome steel construction ensures durability even in demanding environments.

In automotive applications, 438W-432DC Bearing supports axle systems and wheel hubs, providing reliable performance under varying load conditions. Its imperial sizing makes it a preferred choice for North American vehicle manufacturers.

For industrial automation, 438W-432DC 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 service life in high-use scenarios.

Where Is 438W-432DC Bearing Used?
You’ll often find 438W-432DC Bearing in agricultural machinery, such as tractors and harvesters, where its tapered roller design manages heavy loads smoothly. The steel cage adds extra strength for long-term use.

In material handling equipment, 438W-432DC Bearing ensures smooth operation in forklifts and cranes. Its standard radial clearance makes it versatile for various load and speed requirements.

Built for Heavy-Duty Use: 438W-432DC Bearing
438W-432DC Bearing excels in forestry equipment like log splitters and sawmills, thanks to its robust construction. The double-row setup distributes loads evenly, reducing wear over time.

For railway applications, 438W-432DC Bearing is trusted in freight car axles, where reliability is critical. Its ABEC-1 rating ensures consistent performance under continuous use.

Automotive vs Aerospace: Applications of 438W-432DC Bearing
In automotive settings, 438W-432DC Bearing is a go-to for drivetrain components, balancing speed and load capacity. Its inch measurements align with standard US manufacturing specs.

For aerospace ground support equipment, 438W-432DC Bearing handles heavy loads in tow tractors and loading platforms. The temperature range suits both indoor and outdoor operations.

Q&A

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