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439-432D TDO (Two-Row Double-Outer Race) (Imperial)

439-432D TDO (Two-Row Double-Outer Race) (Imperial)

The 439-432D is a double-row tapered roller bearing with a 1.625″ bore and 3.75″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 49700 lbf and is designed for long-lasting performance in demanding conditions.

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 versatile for various environments.

This model is part of the 435 series, featuring standard cups and a robust double-row construction. Ideal for heavy-duty applications like industrial gearboxes or vehicle axles where combined loads are common.

Weighing 4.62 lb, it’s built to handle high radial and thrust loads efficiently. Compliant with RoHS and REACH standards, it’s a reliable choice for replacements or new installations.

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Product Parameters

  • Part Number 439-432D
  • Brand TFL
  • Size 1.625" x 3.75" x 1.1772"
  • Bore Dia 1.625"
  • 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 1.97"
  • 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 439
  • Cup Part Number 432D
  • 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 4.62 lb

Features

How Is 439-432D Bearing Engineered for Reliability?

439-432D Bearing features a double-row tapered roller design, providing robust support for combined radial and thrust loads.
Its chrome steel construction ensures durability, with a dynamic radial load capacity of 49,700 lbf.

The precision tolerances in bore and outer diameters enhance alignment, reducing wear during operation.
With a standard radial clearance, it offers reliable performance across a temperature range of -30° to 110°C.

Steel cage construction maintains roller alignment, extending the bearing’s service life.
Designed for heavy-duty applications, it balances strength and efficiency.

Application

Industrial Uses of 439-432D Bearing
439-432D Bearing is commonly used in heavy machinery, such as construction equipment and mining vehicles, where its double-row design handles combined radial and thrust loads effectively. The chrome steel construction ensures durability even in demanding environments.

Where Is 439-432D Bearing Used?
You’ll often find 439-432D Bearing in automotive applications like truck wheel hubs, where its tapered roller design provides stability under heavy loads. The inch sizing makes it a good fit for North American vehicle standards.

Built for Heavy-Duty Use: 439-432D Bearing
439-432D Bearing excels in industrial gearboxes, offering reliable performance under high stress. Its open design allows for easy lubrication, extending service life in continuous operation settings.

Automotive vs Aerospace: Applications of 439-432D Bearing
In automotive systems, 439-432D Bearing supports axles and transmissions, while in aerospace, it’s used in landing gear mechanisms. The ABEC-1 rating ensures consistent precision for both fields.

Essential Roles of 439-432D Bearing
439-432D Bearing is a go-to choice for agricultural machinery, like tractors, where its robust design handles uneven loads. The steel cage adds extra strength, making it suitable for rough terrain.

Q&A

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