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46780-46720CD TDO (Two-Row Double-Outer Race) (Imperial)

46780-46720CD TDO (Two-Row Double-Outer Race) (Imperial)

The 46780-46720CD is a double-row tapered roller bearing with a 6.25″ bore and 8.875″ outer diameter, built from sturdy chrome steel. It handles combined loads, supporting up to 119,000 lbf dynamically, and works well in temperatures from -30°C to 110°C.

Its open design allows for easy lubrication, while the steel cage ensures durability under heavy use. The bearing is designed for standard radial clearance, with options for C3, C4, or C5 if needed.

This model is ideal for heavy-duty applications like industrial gearboxes or large machinery where high radial and thrust loads are common. Weighing 22.94 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. The ABEC-1 rating ensures consistent performance for general industrial use.

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Product Parameters

  • Part Number 46780-46720CD
  • 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 2.75"
  • 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 3.375"
  • 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 46720CD
  • 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 22.94 lb

Features

How Does 46780-46720CD Bearing Handle Combined Loads?

46780-46720CD Bearing is built 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, enhancing durability and reducing wear.
With a standard radial clearance, it provides smooth operation in various industrial settings.

46780-46720CD Bearing operates efficiently within a temperature range of -30° to 110°C.
Its steel cage maintains roller alignment, contributing to extended service life.

The open seal design allows for easy lubrication, ensuring consistent performance.
This bearing is ideal for applications requiring combined load handling and long-term reliability.

Application

Industrial Uses of 46780-46720CD Bearing
The 46780-46720CD 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 efficiently. Its chrome steel construction ensures durability in demanding environments.
In automotive applications, 46780-46720CD Bearing supports large axles and wheel hubs, providing stability under heavy loads. The inch sizing makes it a preferred choice for North American vehicle manufacturers.

What Makes 46780-46720CD Bearing a Preferred Choice?
With its tapered roller design, 46780-46720CD Bearing excels in industrial gearboxes, offering smooth operation under high stress. The open seal type allows for easy lubrication, extending its service life.
Its standard radial clearance makes it versatile for various machinery setups, from conveyor systems to agricultural equipment.

Built for Heavy-Duty Use: 46780-46720CD Bearing
46780-46720CD Bearing is ideal for wind turbine yaw systems, where its robust construction withstands constant movement and variable loads. The steel cage adds extra strength for long-term reliability.
In railway applications, this bearing ensures smooth performance in bogies and traction motors, even under extreme conditions.

Automotive vs Aerospace: Applications of 46780-46720CD Bearing
In automotive settings, 46780-46720CD Bearing is often found in truck differentials, handling high torque and axial loads. Its ABEC-1 rating balances precision and cost-effectiveness.
For aerospace ground equipment, this bearing supports heavy-duty tow tractors and cargo loaders, where its inch measurements align with industry standards.

Key Fields for 46780-46720CD Bearing
46780-46720CD Bearing is widely used in marine propulsion systems, thanks to its resistance to corrosion and high dynamic load capacity. The double-row design ensures stability in rough seas.
It also plays a key role in oilfield machinery, such as drilling rigs, where reliability under extreme pressure is crucial.

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