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440-432DC TDO (Two-Row Double-Outer Race) (Imperial)

440-432DC TDO (Two-Row Double-Outer Race) (Imperial)

The 440-432DC is a double-row tapered roller bearing with a 1.5″ 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.

Its open design allows easy lubrication, while the steel cage ensures durability. The bearing operates smoothly in temperatures ranging from -30°C to 110°C.

This model features a standard radial clearance and is ABEC-1 rated for reliable precision. Ideal for heavy-duty applications like industrial gearboxes or automotive systems where combined loads are common.

Weighing 4.83 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe and eco-friendly use.

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Product Parameters

  • Part Number 440-432DC
  • Brand TFL
  • Size 1.5" x 3.75" x 1.1772"
  • Bore Dia 1.5"
  • 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 1.83"
  • 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 440
  • 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 4.83 lb

Features

How Does 440-432DC Bearing Handle Combined Loads?

440-432DC Bearing features a double-row tapered roller design, offering reliable performance under combined radial and thrust 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 bearing life.
With a temperature range of -30° to 110°C, it performs well in various operating conditions.

Structural Advantages of 440-432DC Bearing

440-432DC Bearing’s double-row design provides enhanced load distribution, improving stability in demanding applications.
The chrome steel rollers and rings resist wear, ensuring consistent performance over time.
Precision tolerances, such as the bore diameter tolerance of +0.005″ to 0, contribute to smooth operation.
This bearing is ideal for applications requiring both radial and thrust load support.

Why Choose 440-432DC Bearing for Heavy-Duty Applications?

440-432DC Bearing is built to handle heavy loads, with a dynamic radial rating of 12,900 lbf for two-row operation.
Its tapered roller design ensures efficient load distribution, reducing stress on individual components.
The open seal type allows for easy lubrication, maintaining optimal performance.
With an ABEC-1 rating, it balances precision and durability for industrial use.

Application

Industrial Uses of 440-432DC Bearing
440-432DC 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. The chrome steel construction ensures durability in demanding environments.
In automotive applications, 440-432DC Bearing supports wheel hubs and differential systems, providing reliable performance under varying loads. Its inch sizing makes it compatible with many American-made vehicles.
For industrial automation, 440-432DC Bearing is ideal for conveyor systems and robotic arms, where its open design allows for easy lubrication and maintenance. The standard radial clearance offers flexibility in different operating conditions.

Why Is 440-432DC Bearing Essential in Machinery?
440-432DC Bearing plays a key role in agricultural machinery, such as tractors and harvesters, due to its ability to withstand heavy loads and harsh conditions. The tapered roller design ensures smooth operation even under stress.
In material handling systems, 440-432DC Bearing is often found in forklifts and cranes, where its double-row construction provides stability and longevity. The steel cage adds extra strength to the bearing’s structure.

Built for Heavy-Duty Use: 440-432DC Bearing
440-432DC Bearing is a go-to choice for railway applications, particularly in axle boxes, where its combined load capacity and durability are crucial. The ABEC-1 rating ensures consistent performance at moderate speeds.
In wind turbines, 440-432DC Bearing supports the main shaft, handling both radial and thrust loads effectively. Its temperature range of -30° to 110°C makes it suitable for various climates.

Automotive vs Aerospace: Applications of 440-432DC Bearing
In automotive settings, 440-432DC Bearing is often used in heavy-duty trucks and buses, where its robust design meets the demands of long-haul transportation. The inch measurements simplify replacements and upgrades.
For aerospace ground equipment, 440-432DC Bearing can be found in aircraft tow tractors and loading systems, offering reliable performance in high-stress scenarios. The open seal type allows for easy inspection and maintenance.

Q&A

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