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46790-46721D TDO (Two-Row Double-Outer Race) (Imperial)

46790-46721D TDO (Two-Row Double-Outer Race) (Imperial)

The 46790-46721D is a two-row tapered roller bearing with a 6.5″ bore and 8.875″ outer diameter, built from sturdy chrome steel for heavy-duty use. It handles combined loads with a dynamic radial capacity of 119,000 lbf and operates smoothly 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, making it suitable for high-load applications like industrial gearboxes or large machinery.

This bearing comes with standard radial clearance but is also available in C3, C4, or C5 options for specific needs. Weighing 21.66 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a reliable choice for demanding environments.

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Product Parameters

  • Part Number 46790-46721D
  • Brand TFL
  • Size 6.5" x 8.875" x 1.5625"
  • Bore Dia 6.5"
  • 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 7.13"
  • 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 46790
  • 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 21.66 lb

Features

Performance Features of 46790-46721D Bearing

46790-46721D Bearing is built with chrome steel rings and rollers, offering robust performance under combined loads.
Its dynamic radial load capacity reaches 119,000 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 Does 46790-46721D Bearing Resist Wear?

46790-46721D Bearing’s chrome steel construction enhances its resistance to wear and prolongs service life.
The steel cage maintains roller alignment, reducing friction and preventing premature failure.
Its tapered roller design efficiently handles both radial and thrust loads.
Operating within a temperature range of -30° to 110°C, it performs reliably in diverse environments.

Engineered for Precision: 46790-46721D Bearing

46790-46721D Bearing features precise tolerances, ensuring smooth and accurate operation.
The double-row design provides excellent load-carrying capacity and stability.
Its chrome steel rollers and rings contribute to long-lasting performance.
With standard radial clearance options, it accommodates various application requirements.

Steel vs Ceramic Bearings: Strengths of 46790-46721D Bearing

46790-46721D Bearing uses chrome steel for its rings and rollers, offering durability and cost-effectiveness.
The steel cage ensures reliable roller alignment, enhancing performance under heavy loads.
Its double-row tapered roller design efficiently manages combined radial and thrust forces.
With a dynamic radial load rating of 119,000 lbf, it excels in demanding industrial applications.

Application

Industrial Uses of 46790-46721D Bearing
46790-46721D Bearing is commonly used in heavy machinery like construction equipment and mining rigs, where its double-row design handles combined radial and thrust loads efficiently. The chrome steel construction ensures durability even in demanding environments.

In automotive applications, 46790-46721D Bearing supports large vehicle components such as wheel hubs and differential systems. Its inch sizing makes it a reliable choice for American and British automotive standards.

For industrial conveyor systems, 46790-46721D Bearing’s tapered roller design provides smooth operation under heavy loads. The open seal type allows for easy lubrication, extending its service life in high-use scenarios.

What Makes 46790-46721D Bearing a Preferred Choice?
46790-46721D Bearing is often selected for agricultural machinery due to its ability to withstand harsh conditions like dust and moisture. The steel cage adds extra strength, making it suitable for long-term use.

In wind turbine assemblies, 46790-46721D Bearing’s high dynamic radial load capacity ensures reliable performance. Its temperature range also makes it adaptable to varying weather conditions.

Built for Heavy-Duty Use: 46790-46721D Bearing
46790-46721D Bearing excels in railway applications, where its double-row construction manages heavy axial and radial loads. The standard radial clearance offers flexibility for different operational needs.

For marine equipment, 46790-46721D Bearing’s corrosion-resistant materials provide reliability in salty environments. Its robust design ensures consistent performance even under constant stress.

Automotive vs Aerospace: Applications of 46790-46721D Bearing
In automotive settings, 46790-46721D Bearing is ideal for truck axles, offering stability under heavy loads. The ABEC-1 rating ensures sufficient precision for most vehicle requirements.

For aerospace ground support equipment, 46790-46721D Bearing’s high load capacity and temperature tolerance make it a practical choice. Its inch measurements align well with imperial system machinery.

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