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46780-46721D TDO (Two-Row Double-Outer Race) (Imperial)

46780-46721D TDO (Two-Row Double-Outer Race) (Imperial)

The 46780-46721D is a two-row tapered roller bearing with a 6.25″ bore and 8.875″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 119000 lbf and works well in temperatures from -30°C to 110°C.

Its double-row design offers extra stability, while the open seal allows for easy lubrication. The steel cage ensures durability, making it suitable for heavy-duty applications.

This bearing is ideal for industrial machinery or large equipment where high radial and thrust loads are common. It meets RoHS and REACH standards for safety and environmental compliance.

Weighing 23.95 lb, it’s a robust choice for demanding environments. The standard radial clearance can also be adjusted to C3, C4, or C5 if needed.

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Product Parameters

  • Part Number 46780-46721D
  • Brand TFL
  • Size 6.25" x 8.875" x 1.5625"
  • Bore Dia 6.25"
  • Bore Dia Tolerance +0.001" to 0
  • Outer Dia 8.875"
  • Outer Dia Tolerance +0.001" to 0
  • Double Cup Width 3"
  • Double Cup Width Tolerance +0.003" to -0.01
  • Cone Width 1.5625"
  • Cone Width Tolerance +0.002" to -0.01
  • Bearing Width Across Cups 3.625"
  • Bearing Width Across Cups Tolerance +0.014" to -0.01"
  • Cup Backface ToClear Radius 0.03"
  • Cone Backface Backing Diameter 6.93"
  • Cup Frontface Backing Diameter 8.62"
  • Cage Cone Backface Clearance 0.13"
  • Dynamic Radial Load 119000 lbf
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 46780
  • Cup Part Number 46721D
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Double Row
  • Seal Type Open
  • Cups Type Standard
  • Series 46700
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Rating(One Row 90 Million Revolutions) 17700 lbf
  • Dynamic Thrust Rating(90 Million Revolutions) 11600 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions) 30800 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 23.95 lb

Features

How Does 46780-46721D Bearing Handle Combined Loads?

46780-46721D Bearing is designed with chrome steel rings and rollers, offering strong resistance to both radial and thrust loads.
Its dynamic radial load capacity reaches 119,000 lbf, ensuring reliable performance in heavy-duty applications.
The double-row tapered roller design distributes loads evenly, reducing wear and extending service life.
With a standard radial clearance, it provides smooth operation across various conditions.

What Makes 46780-46721D Bearing Suitable for High-Temperature Applications?

46780-46721D Bearing operates efficiently within a temperature range of -30° to 110°C, making it suitable for demanding environments.
The chrome steel construction ensures durability and resistance to thermal expansion.
Its open design allows for easy lubrication, maintaining performance under high temperatures.
This bearing is ideal for applications where heat resistance is crucial.

Built for Reliability: 46780-46721D Bearing

46780-46721D Bearing features a double-row tapered roller design, providing stability under combined loads.
The chrome steel components enhance strength and resistance to wear, ensuring long-term reliability.
Its standard radial clearance and ABEC-1 rating offer consistent performance.
This bearing is a dependable choice for industrial and automotive applications.

Application

Industrial Uses of 46780-46721D Bearing
The 46780-46721D Bearing is commonly used in heavy machinery, such as construction equipment and mining vehicles, where its double-row design handles combined radial and thrust loads effectively. Its chrome steel construction ensures durability in demanding environments.

In automotive applications, 46780-46721D Bearing supports large axles and wheel hubs, providing stability under heavy loads. The inch sizing makes it a preferred choice for American and British vehicle manufacturers.

For industrial conveyor systems, 46780-46721D Bearing’s tapered roller design offers smooth operation and long service life. The open seal type allows for easy lubrication, reducing maintenance downtime.

Where Is 46780-46721D Bearing Used?
You’ll often find 46780-46721D Bearing in agricultural machinery, like tractors and harvesters, where its robust design withstands rough conditions. The standard radial clearance ensures reliable performance even with varying loads.

In material handling equipment, 46780-46721D Bearing’s high dynamic radial load capacity makes it ideal for forklifts and cranes. The steel cage adds extra strength, preventing deformation under stress.

Built for Heavy-Duty Use: 46780-46721D Bearing
The 46780-46721D Bearing excels in forestry equipment, such as log splitters and sawmills, thanks to its ability to handle both radial and thrust forces. Its temperature range suits outdoor operations in various climates.

For railway applications, 46780-46721D Bearing ensures smooth movement in freight car axles. The ABEC-1 rating provides sufficient precision for these heavy-load scenarios.

Automotive vs Aerospace: Applications of 46780-46721D Bearing
In automotive settings, 46780-46721D Bearing is trusted for heavy-duty truck axles, where its inch measurements align with standard designs. The chrome steel rollers enhance wear resistance over long distances.

While less common in aerospace, 46780-46721D Bearing can be found in ground support equipment. Its combined load capacity makes it versatile for various industrial uses.

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