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28985-28921DC TDO (Two-Row Double-Outer Race) (Imperial)

28985-28921DC TDO (Two-Row Double-Outer Race) (Imperial)

The 28985-28921DC is a double-row tapered roller bearing with a 2.375″ bore and 3.937″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 41500 lbf and is designed for long-lasting performance in tough 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 and comes with standard cups for straightforward installation. Ideal for heavy-duty applications like industrial gearboxes or machinery where high radial and thrust loads are common.

Weighing 3.57 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a reliable choice for replacements or new installations.

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Product Parameters

  • Part Number 28985-28921DC
  • Brand TFL
  • Size 2.375" x 3.937" x 1"
  • Bore Dia 2.375"
  • 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 28985
  • 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 3.57 lb

Features

Performance Features of 28985-28921DC Bearing

28985-28921DC 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 efficient load distribution.
With a standard radial clearance, it provides reliable operation in various conditions.

How Is 28985-28921DC Bearing Engineered for Reliability?

28985-28921DC Bearing features a steel cage that maintains roller alignment, reducing wear and extending service life.
The chrome steel construction resists wear and corrosion, ensuring durability in harsh environments.
Its double-row design enhances load-bearing capacity, making it ideal for industrial applications.
The bearing operates efficiently within a temperature range of -30° to 110°C.

Designed for Durability: 28985-28921DC Bearing

28985-28921DC Bearing’s tapered roller design minimises friction, promoting smooth operation under heavy loads.
The chrome steel components provide excellent resistance to wear, even in demanding conditions.
Its open seal type allows for easy lubrication, ensuring consistent performance.
With an ABEC-1 rating, it balances precision and reliability for various applications.

Application

Industrial Uses of 28985-28921DC Bearing
28985-28921DC Bearing is commonly used in heavy machinery like construction equipment, where its double-row design handles combined radial and thrust loads effectively. The chrome steel construction ensures durability in demanding environments.

In automotive applications, 28985-28921DC Bearing supports wheel hubs and drivetrain components, providing reliable performance under varying loads. Its inch sizing makes it compatible with many North American vehicle models.

For industrial automation, 28985-28921DC Bearing is a solid choice for conveyor systems and robotic arms, thanks to its open design and easy lubrication. The standard radial clearance allows for smooth operation in repetitive tasks.

What Makes 28985-28921DC Bearing a Preferred Choice?
28985-28921DC Bearing stands out in agricultural machinery, where its tapered roller design manages heavy loads and misalignment. The steel cage adds strength while maintaining flexibility.

In mining equipment, 28985-28921DC Bearing’s robust construction handles harsh conditions, from dust to high vibrations. The ABEC-1 rating ensures consistent performance without over-engineering.

Built for Heavy-Duty Use: 28985-28921DC Bearing
28985-28921DC Bearing is ideal for forestry machinery, where its double-row setup distributes loads evenly. The wide temperature range suits both cold and hot operating environments.

For material handling systems, 28985-28921DC Bearing’s dynamic radial rating ensures longevity even with frequent starts and stops. The standard lubrication requirement simplifies maintenance routines.

Q&A

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