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

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

The 439-432DC 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 with a dynamic radial capacity of 49,700 lbf and operates smoothly in temperatures from -30°C to 110°C.

Its open design allows for easy lubrication, while the steel cage ensures durability under heavy use. The bearing fits standard cup types and is part of the 435 series, making it versatile for various setups.

This model is ideal for industrial machinery or automotive applications where high radial and thrust loads are common. With an ABEC-1 rating, it offers reliable precision for general engineering needs.

Weighing 4.62 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a safe choice for most environments.

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Product Parameters

  • Part Number 439-432DC
  • 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 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 4.62 lb

Features

How Is 439-432DC Bearing Engineered for Reliability?

439-432DC 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 steel cage maintains roller alignment, reducing friction and extending operational life.
With a temperature range of -30° to 110°C, it performs reliably in varied conditions.

What Makes 439-432DC Bearing Suitable for High-Temperature Applications?

439-432DC Bearing operates efficiently in temperatures up to 110°C, thanks to its chrome steel components.
The tapered roller design distributes loads evenly, reducing heat buildup during operation.
Its open construction allows for effective lubrication, ensuring smooth performance.
This makes it ideal for industrial applications with demanding thermal conditions.

Designed for Durability: 439-432DC Bearing

439-432DC Bearing’s double-row construction enhances load capacity and stability under heavy use.
The precision-machined chrome steel rollers and rings resist wear, ensuring long service life.
Standard radial clearance options provide flexibility for different operational needs.
Its robust design makes it a reliable choice for machinery requiring consistent performance.

Steel vs Ceramic Bearings: Strengths of 439-432DC Bearing

439-432DC Bearing uses high-quality chrome steel for both rollers and rings, balancing strength and cost-effectiveness.
The material choice ensures excellent load-bearing capacity and resistance to deformation.
Steel construction also simplifies maintenance, as it is less brittle than ceramic alternatives.
This makes 439-432DC Bearing a practical option for heavy-duty industrial applications.

Application

Industrial Uses of 439-432DC Bearing
The 439-432DC 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 effectively. Its chrome steel construction ensures durability in demanding environments.

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

Built for Heavy-Duty Use: 439-432DC Bearing
In industrial gearboxes, the 439-432DC Bearing offers reliable performance due to its robust steel cage and high dynamic load capacity. The open seal design allows for easy lubrication, extending its service life.

Automotive vs Aerospace: Applications of 439-432DC Bearing
While the 439-432DC Bearing excels in automotive systems like differentials, it’s also suitable for aerospace ground support equipment. Its temperature range and ABEC-1 rating ensure consistent performance in varied conditions.

Essential Roles of 439-432DC Bearing
The 439-432DC Bearing is a go-to choice for agricultural machinery, such as tractor transmissions, where its combined load capacity and standard radial clearance simplify maintenance. The steel roller material adds to its long-term reliability.

Q&A

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