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55206-55444D TDO (Two-Row Double-Outer Race) (Imperial)

55206-55444D TDO (Two-Row Double-Outer Race) (Imperial)

The 55206-55444D is a double-row tapered roller bearing with a 2.0625″ bore and 4.4375″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 12800 lbf (two-row radial) and 11100 lbf (thrust), making it suitable for heavy-duty applications.

Its open design allows for easy lubrication, while the steel cage ensures durability under high stress. The bearing operates smoothly in temperatures from -30°C to 110°C, ideal for varied environments.

This model features standard radial clearance and is ABEC-1 rated for reliable performance. It’s commonly used in industrial gearboxes or heavy machinery where combined loads are present.

Weighing 5.85 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a practical choice for replacements or upgrades.

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Product Parameters

  • Part Number 55206-55444D
  • Brand TFL
  • Size 2.0625" x 4.4375" x 1.0594"
  • Bore Dia 2.0625"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 4.4375"
  • Outer Dia Tolerance +0.001" to 0
  • Double Cup Width 1.8125"
  • Double Cup Width Tolerance +0.003" to -0.01
  • Cone Width 1.0594"
  • Cone Width Tolerance +0.002" to -0.01
  • Bearing Width Across Cups 2.5624"
  • Bearing Width Across Cups Tolerance +0.008" to 0
  • Cup Backface ToClear Radius 0.06"
  • Cone Backface Backing Diameter 2.83"
  • Cup Frontface Backing Diameter 4.15"
  • Cage Cone Backface Clearance 0.16"
  • Dynamic Radial Load 49400 lbf
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 55206
  • Cup Part Number 55444D
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Double Row
  • Seal Type Open
  • Cups Type Standard
  • Series 55000
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Rating(One Row 90 Million Revolutions) 7350 lbf
  • Dynamic Thrust Rating(90 Million Revolutions) 11100 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions) 12800 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 5.85 lb

Features

How Is 55206-55444D Bearing Engineered for Reliability?

55206-55444D Bearing features a double-row tapered roller design, providing strong resistance to combined radial and thrust loads.
Its chrome steel construction ensures durability, with a dynamic radial load capacity of 49,400 lbf.

The steel cage maintains roller alignment, reducing wear and extending service life.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

55206-55444D Bearing’s standard radial clearance options offer flexibility for different applications.
Its precise tolerances ensure smooth operation and easy installation.

Application

Industrial Uses of 55206-55444D Bearing
The 55206-55444D Bearing is widely used in heavy machinery, such as construction equipment and mining tools, where its double-row design handles combined radial and thrust loads effectively.
Its chrome steel construction ensures durability in demanding environments, making it a reliable choice for long-term use.

What Makes 55206-55444D Bearing a Preferred Choice?
In automotive applications, 55206-55444D Bearing is often found in wheel hubs and differential systems, providing smooth performance under varying loads.
The imperial sizing makes it compatible with many North American vehicle models, simplifying maintenance and replacements.

Built for Heavy-Duty Use: 55206-55444D Bearing
For industrial fans and pumps, 55206-55444D Bearing offers stability and resistance to wear, even in high-speed operations.
The open seal design allows for easy lubrication, extending the bearing’s service life in continuous-use scenarios.

Automotive vs Aerospace: Applications of 55206-55444D Bearing
In automotive systems, 55206-55444D Bearing supports heavy loads in trucks and off-road vehicles, ensuring reliable performance.
While not typically used in aerospace, its robust design makes it suitable for ground support equipment and other industrial uses.

Key Fields for 55206-55444D Bearing
The 55206-55444D Bearing is ideal for agricultural machinery, where its tapered roller design handles uneven loads with ease.
Its standard radial clearance options provide flexibility for different operational requirements, from light to heavy-duty tasks.

Q&A

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