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

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

The 438-432DC is a double-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 up to 49,700 lbf and is designed for smooth operation in temperatures ranging from -30°C to 110°C.
The open design allows for easy lubrication, while the steel cage ensures durability under heavy use.
Ideal for industrial machinery or automotive applications where robust load-bearing capacity is needed.

With a standard radial clearance and ABEC-1 rating, this bearing offers reliable precision for general-purpose use.
Its double-row construction provides extra stability, making it suitable for applications with high radial and thrust loads.
Weighing 4.37 lb, it’s a solid choice for equipment requiring durable, high-capacity bearings.
Compliant with RoHS and REACH standards, it’s safe for various industrial environments.

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Product Parameters

  • Part Number 438-432DC
  • 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 438
  • 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 4.37 lb

Features

How Does 438-432DC Bearing Handle Combined Loads?

438-432DC Bearing is built with chrome steel rings and rollers, offering strong resistance to both radial and thrust loads.
Its dynamic radial load capacity reaches 49,700 lbf, ensuring reliable performance in demanding conditions.
The double-row tapered roller design distributes loads evenly, enhancing durability and reducing wear.
With a standard radial clearance, it provides smooth operation across various applications.

What Makes 438-432DC Bearing Suitable for High-Temperature Applications?

438-432DC Bearing operates efficiently in temperatures ranging from -30° to 110 °C, making it versatile for different environments.
The chrome steel construction resists heat-induced wear, maintaining performance under stress.
Its open design allows for easy lubrication, ensuring consistent operation even in challenging conditions.
The steel cage keeps rollers aligned, further enhancing reliability.

Engineered for Precision: 438-432DC Bearing

438-432DC Bearing features precise tolerances, with bore diameter accuracy of +0.005″ to 0.
Its tapered roller design ensures smooth rotation and minimal friction during operation.
The double-row construction provides stability, making it ideal for heavy-duty applications.
With an ABEC-1 rating, it balances performance and affordability.

Application

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

Where Is 438-432DC Bearing Used?
You’ll often find 438-432DC Bearing in automotive applications like truck wheel hubs, where its tapered roller design provides stability under heavy loads. The inch sizing makes it a popular choice for North American vehicle models.

Built for Heavy-Duty Use: 438-432DC Bearing
In industrial conveyor systems, 438-432DC Bearing’s open design allows for easy lubrication, extending its service life in high-use scenarios. The standard radial clearance ensures smooth operation even under varying loads.

Automotive vs Aerospace: Applications of 438-432DC Bearing
While 438-432DC Bearing is ideal for automotive drivetrains due to its robust construction, it’s also suitable for aerospace ground support equipment. The ABEC-1 rating balances precision and cost-effectiveness for these applications.

What Makes 438-432DC Bearing a Preferred Choice?
For agricultural machinery, 438-432DC Bearing’s tapered rollers handle uneven loads from implements like ploughs effectively. The steel cage adds extra strength, making it reliable in dusty or muddy conditions.

Q&A

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