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449-432D TDO (Two-Row Double-Outer Race) (Imperial)

449-432D TDO (Two-Row Double-Outer Race) (Imperial)

The 449-432D is a two-row tapered roller bearing with a 1.375″ bore and 3.75″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 49700 lbf and is designed for long-lasting performance.

Its double-row construction provides extra stability, while the open design allows for easy lubrication. The bearing operates smoothly in temperatures ranging from -30°C to 110°C.

With standard radial clearance and ABEC-1 rating, it offers reliable precision for industrial use. Ideal for heavy-duty applications like gearboxes or construction equipment where high radial and thrust loads are common.

Weighing 5.02 lb, it’s a robust choice for demanding environments. Compliant with RoHS and REACH standards for safe and sustainable use.

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Product Parameters

  • Part Number 449-432D
  • Brand TFL
  • Size 1.375" x 3.75" x 1.1772"
  • Bore Dia 1.375"
  • 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 1.73"
  • 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 449
  • 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 5.02 lb

Features

How Is 449-432D Bearing Engineered for Reliability?

449-432D Bearing features a double-row tapered roller design, providing strong resistance to combined radial and thrust loads.
Its chrome steel construction ensures durability, with a dynamic radial load capacity of 49,700 lbf.

The precision-engineered cage maintains roller alignment, reducing friction and extending service life.
With a standard radial clearance and ABEC-1 rating, it offers consistent performance in various applications.

449-432D Bearing operates efficiently within a temperature range of -30° to 110°C.
Its open design allows for easy lubrication, ensuring smooth operation under heavy loads.

Application

Industrial Uses of 449-432D Bearing
449-432D 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.

Where Is 449-432D Bearing Used?
You’ll often find 449-432D Bearing in automotive applications, particularly in wheel hubs and differential systems. Its tapered roller design provides smooth performance under varying load conditions.

Built for Heavy-Duty Use: 449-432D Bearing
449-432D Bearing excels in industrial gearboxes and conveyor systems, thanks to its robust steel cage and high dynamic load capacity. The open seal design allows for easy lubrication and maintenance.

Automotive vs Aerospace: Applications of 449-432D Bearing
In automotive settings, 449-432D Bearing supports high-load components like axles and transmissions. While not typically used in aerospace, its precision makes it suitable for similar high-stress industrial applications.

Key Fields for 449-432D Bearing
449-432D Bearing is ideal for agricultural machinery, where its inch sizing fits standard equipment designs. The ABEC-1 rating ensures reliable performance without over-engineering for most farm implements.

Q&A

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