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56426-56649D TDO (Two-Row Double-Outer Race) (Imperial)

56426-56649D TDO (Two-Row Double-Outer Race) (Imperial)

The 56426-56649D is a two-row tapered roller bearing with a 4.25″ bore and 6.4951″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 88600 lbf and is designed for long-lasting performance in demanding conditions.

Its double-row construction provides extra stability, while the open design allows for easy lubrication. The bearing operates smoothly in temperatures ranging from -30°C to 110°C.

This model is part of the 56000 series, known for reliability in heavy-duty applications. Ideal for use in industrial machinery or automotive systems where high radial and thrust loads are common.

Weighing 12.39 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, ensuring safe and environmentally friendly use.

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Product Parameters

  • Part Number 56426-56649D
  • Brand TFL
  • Size 4.25" x 6.4951" x 1.4375"
  • Bore Dia 4.25"
  • Bore Dia Tolerance +0.001" to 0
  • Outer Dia 6.4951"
  • Outer Dia Tolerance +0.001" to 0
  • Double Cup Width 2.5"
  • Double Cup Width Tolerance +0.003" to -0.01
  • Cone Width 1.4375"
  • Cone Width Tolerance +0.002" to -0.01
  • Bearing Width Across Cups 3.2499"
  • Bearing Width Across Cups Tolerance +0.014" to -0.01"
  • Cup Backface ToClear Radius 0.03"
  • Cone Backface Backing Diameter 5.2"
  • Cup Frontface Backing Diameter 6.30"
  • Cage Cone Backface Clearance 0.14"
  • Dynamic Radial Load 88600 lbf
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 56426
  • Cup Part Number 56649D
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Double Row
  • Seal Type Open
  • Cups Type Standard
  • Series 56000
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Rating(One Row 90 Million Revolutions) 13200 lbf
  • Dynamic Thrust Rating(90 Million Revolutions) 11200 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions) 23000 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 12.39 lb

Features

Why Choose 56426-56649D Bearing for Combined Loads?

56426-56649D Bearing is built with chrome steel rings and rollers, offering robust performance under combined radial and thrust loads.
Its dynamic radial load capacity reaches 88,600 lbf, making it suitable for heavy-duty applications.
The double-row tapered roller design ensures stability and even load distribution.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

How Is 56426-56649D Bearing Engineered for Reliability?

56426-56649D Bearing features precision-machined chrome steel components for enhanced durability.
The tapered roller design reduces friction, ensuring smooth operation under high loads.
Its standard radial clearance options provide flexibility for different applications.
The steel cage maintains roller alignment, extending the bearing’s service life.

Built for Durability: 56426-56649D Bearing

56426-56649D Bearing’s chrome steel construction resists wear, even in demanding environments.
The double-row design increases load capacity while maintaining compact dimensions.
With a dynamic thrust rating of 11,200 lbf, it handles axial loads effectively.
Its open seal type allows for easy lubrication and maintenance.

Application

Industrial Uses of 56426-56649D Bearing
The 56426-56649D 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 efficiently.
Its chrome steel construction ensures durability in harsh environments, making it a reliable choice for long-term industrial applications.

Where Is 56426-56649D Bearing Used?
You’ll often find the 56426-56649D Bearing in automotive applications like truck wheel hubs, where its tapered roller design supports high loads and smooth rotation.
The inch sizing makes it compatible with many North American vehicle models, offering versatility for mechanics and engineers.

Built for Heavy-Duty Use: 56426-56649D Bearing
In agricultural machinery, the 56426-56649D Bearing excels in equipment like tractors and harvesters, thanks to its robust construction and high dynamic load capacity.
The open seal type allows for easy lubrication, ensuring consistent performance even in dusty or demanding conditions.

Automotive vs Aerospace: Applications of 56426-56649D Bearing
While the 56426-56649D Bearing is popular in automotive systems for its load-bearing capabilities, it’s also suitable for aerospace ground support equipment.
The bearing’s temperature range and ABEC-1 rating make it adaptable to various operational demands across industries.

Key Fields for 56426-56649D Bearing
The 56426-56649D Bearing is a go-to choice for railway applications, where its double-row design manages heavy axial and radial loads in bogies and axles.
Its steel cage and chrome steel rollers provide the necessary strength and wear resistance for these high-stress environments.

Q&A

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