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28980-28921DC TDO (Two-Row Double-Outer Race) (Imperial)

28980-28921DC TDO (Two-Row Double-Outer Race) (Imperial)

The 28980-28921DC is a double-row tapered roller bearing with a 2.36″ bore and 3.94″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 41,500 lbf and is designed for long-lasting performance in demanding conditions.

Its open design allows for 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 28900 series, offering reliable performance for heavy-duty applications. Ideal for use in industrial machinery, gearboxes, or vehicles where combined loads are common.

Weighing 3.6 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, ensuring safe and eco-friendly use. The standard radial clearance can be adjusted to C3, C4, or C5 if needed.

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Product Parameters

  • Part Number 28980-28921DC
  • Brand TFL
  • Size 2.3613" x 3.937" x 1"
  • Bore Dia 2.3613"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.937"
  • Outer Dia Tolerance +0.001" to 0
  • Double Cup Width 1.75"
  • Double Cup Width Tolerance +0.003" to -0.01
  • Cone Width 1"
  • Cone Width Tolerance +0.002" to -0.01
  • Bearing Width Across Cups 2.1874"
  • Bearing Width Across Cups Tolerance +0.008" to 0
  • Cup Backface ToClear Radius 0.03"
  • Cone Backface Backing Diameter 2.87"
  • Cup Frontface Backing Diameter 3.82"
  • Cage Cone Backface Clearance 0.05"
  • Dynamic Radial Load 41500 lbf
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 28980
  • Cup Part Number 28921DC
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Double Row
  • Seal Type Open
  • Cups Type Standard
  • Series 28900
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Rating(One Row 90 Million Revolutions) 6180 lbf
  • Dynamic Thrust Rating(90 Million Revolutions) 4500 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions) 10800 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 3.600 lb

Features

Performance Features of 28980-28921DC Bearing

28980-28921DC Bearing is built with chrome steel rings and rollers, offering robust performance under combined loads.
Its dynamic radial load capacity reaches 41,500 lbf, making it suitable for heavy-duty applications.

The double-row tapered roller design ensures stability and even load distribution.
With a standard radial clearance, it provides reliable operation in various conditions.

28980-28921DC Bearing operates efficiently within a temperature range of -30° to 110°C.
Its steel cage maintains roller alignment, reducing wear and extending service life.

The open seal design allows for easy lubrication, ensuring smooth performance.
Weighing 3.600 lb, it balances durability and practicality in industrial settings.

Application

Industrial Uses of 28980-28921DC Bearing
The 28980-28921DC 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.

What Makes 28980-28921DC Bearing a Preferred Choice?
In automotive applications, 28980-28921DC Bearing supports wheel hubs and drivetrains, providing reliable performance under high stress. The inch sizing makes it ideal for vehicles using imperial measurements.

Built for Heavy-Duty Use: 28980-28921DC Bearing
For industrial automation, 28980-28921DC Bearing is a solid choice for conveyor systems and robotic arms, thanks to its tapered roller design. The open seal type allows for easy lubrication and maintenance.

Automotive vs Aerospace: Applications of 28980-28921DC Bearing
In automotive systems, 28980-28921DC Bearing excels in wheel assemblies, while in aerospace, it’s used in landing gear mechanisms. Its high dynamic load capacity ensures performance in both fields.

Where Is 28980-28921DC Bearing Used?
You’ll find 28980-28921DC Bearing in agricultural machinery, like tractors and harvesters, where its robust design handles rough terrain. The standard radial clearance offers flexibility for various operating conditions.

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