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

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

The 28980-28921D is a two-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 works well in temperatures from -30°C to 110°C.

Its double-row design provides extra stability, while the open seal allows for easy lubrication. The steel cage ensures durability even under heavy use.

This bearing is ideal for industrial machinery or heavy equipment where both radial and thrust loads are present. It comes in standard radial clearance but is also available in C3, C4, or C5 options.

Weighing 3.6 lbs, it’s a robust choice for demanding applications. Compliant with RoHS and REACH standards, it’s a reliable replacement for similar models.

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Product Parameters

  • Part Number 28980-28921D
  • 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 28921D
  • 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

How Is 28980-28921D Bearing Engineered for Reliability?

28980-28921D Bearing features a double-row tapered roller design, providing excellent load distribution and stability.
Its chrome steel construction ensures durability, even under combined radial and thrust loads.

The dynamic radial load capacity of 41,500 lbf makes it suitable for heavy-duty applications.
Precision tolerances in bore and outer diameters enhance performance and reduce wear.

With a standard radial clearance option, 28980-28921D Bearing offers flexibility for various operating conditions.
Its open design allows for easy lubrication, maintaining smooth operation over time.

Application

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

What Makes 28980-28921D Bearing a Preferred Choice?
In automotive applications, 28980-28921D Bearing is ideal for wheel hubs and differential systems, providing reliable performance under high stress. The inch sizing makes it compatible with many North American vehicle models.

Built for Heavy-Duty Use: 28980-28921D Bearing
For industrial automation, 28980-28921D Bearing supports conveyor systems and robotic arms, where its tapered roller design ensures smooth operation. The open seal type allows for easy lubrication and maintenance.

Automotive vs Aerospace: Applications of 28980-28921D Bearing
In automotive settings, 28980-28921D Bearing excels in transmissions and axles, while in aerospace, it’s used in landing gear systems. Its high dynamic load capacity makes it versatile for both industries.

Key Fields for 28980-28921D Bearing
The 28980-28921D Bearing is also found in agricultural machinery, such as tractors and harvesters, where its robust design withstands harsh conditions. The standard radial clearance ensures consistent performance over time.

Q&A

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