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55176-55444D TDO (Two-Row Double-Outer Race) (Imperial)

55176-55444D TDO (Two-Row Double-Outer Race) (Imperial)

The 55176-55444D is a double-row tapered roller bearing with a 1.75″ bore and 4.4375″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 49400 lbf and is designed for long-lasting performance in demanding conditions.

Its open design allows for easy lubrication, while the steel cage ensures smooth operation. The bearing can withstand temperatures from -30°C to 110°C, making it versatile for various environments.

This model is part of the 55000 series and comes with standard cups for straightforward installation. Ideal for heavy-duty applications like industrial gearboxes or vehicle axles where combined loads are common.

Weighing 6.44 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.

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Product Parameters

  • Part Number 55176-55444D
  • Brand TFL
  • Size 1.75" x 4.4375" x 1.0594"
  • Bore Dia 1.75"
  • 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 2.4"
  • 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 55176
  • 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 6.44 lb

Features

Performance Features of 55176-55444D Bearing

55176-55444D Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 49,400 lbf, ensuring reliable performance in heavy-duty applications.

The double-row tapered roller design enhances stability and load distribution.
This construction allows 55176-55444D Bearing to handle both radial and thrust loads efficiently.

With a temperature range of -30° to 110°C, it performs well in various environments.
The standard radial clearance options provide flexibility for different operational needs.

55176-55444D Bearing’s steel cage ensures proper roller alignment, reducing wear.
Its open design simplifies lubrication, maintaining smooth operation over time.

Application

Industrial Uses of 55176-55444D Bearing
55176-55444D 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. The chrome steel construction ensures durability in demanding environments.

In automotive applications, 55176-55444D Bearing supports wheel hubs and drivetrains, providing reliable performance under high stress. Its inch sizing makes it a preferred choice for American and British vehicle models.

For industrial automation, 55176-55444D Bearing’s tapered roller design offers precision in conveyor systems and robotic arms. The open seal type allows for easy lubrication, extending its service life.

Where Is 55176-55444D Bearing Used?
55176-55444D Bearing is ideal for agricultural machinery, such as tractors and harvesters, where its robust design withstands heavy loads and rough conditions. The steel cage adds extra strength.

In wind turbines, 55176-55444D Bearing’s ability to handle dynamic radial and thrust loads makes it a reliable component. The standard radial clearance ensures smooth operation even under varying wind speeds.

Built for Heavy-Duty Use: 55176-55444D Bearing
55176-55444D Bearing excels in railway applications, supporting axles and bogies with its combined load capacity. The tapered rollers reduce friction, enhancing efficiency.

For marine equipment, 55176-55444D Bearing’s resistance to corrosion and high loads makes it suitable for propeller shafts. The ABEC-1 rating ensures consistent performance in harsh conditions.

Automotive vs Aerospace: Applications of 55176-55444D Bearing
In automotive systems, 55176-55444D Bearing is used in differentials and transmissions, where its durability is key. The inch measurements align with standard automotive parts.

For aerospace, 55176-55444D Bearing’s precision and load capacity make it suitable for landing gear systems. The chrome steel material meets stringent industry standards.

Q&A

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