478-472DS TDO (Two-Row Double-Outer Race) (Imperial)

478-472DS TDO (Two-Row Double-Outer Race) (Imperial)

The 478-472DS is a double-row tapered roller bearing with a 2.5591″ bore and 5″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 56100 lbf and is designed for long-lasting performance.

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

This model is part of the 475 series, featuring standard cups and a robust double-row construction. Ideal for heavy-duty applications like industrial gearboxes or machinery where both radial and thrust loads are present.

Weighing 8.12 lb, it’s a solid choice for demanding environments. Compliant with RoHS and REACH standards, it’s both reliable and safe for use.

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Product Parameters

  • Part Number 478-472DS
  • Brand TFL
  • Size 2.5591" x 5" x 1.142"
  • Bore Dia 2.5591"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 5"
  • Outer Dia Tolerance +0.001" to 0
  • Double Cup Width 2.125"
  • Double Cup Width Tolerance +0.003" to -0.01
  • Cone Width 1.142"
  • Cone Width Tolerance +0.002" to -0.01
  • Bearing Width Across Cups 2.5625"
  • Bearing Width Across Cups Tolerance +0.008" to 0
  • Cup Backface ToClear Radius 0.03"
  • Cone Backface Backing Diameter 3.03"
  • Cup Frontface Backing Diameter 4.56"
  • Cage Cone Backface Clearance 0.04"
  • Dynamic Radial Load 56100 lbf
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 478
  • Cup Part Number 472DS
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Double Row
  • Seal Type Open
  • Cups Type Standard
  • Series 475
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Rating(One Row 90 Million Revolutions) 8360 lbf
  • Dynamic Thrust Rating(90 Million Revolutions) 5500 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions) 14600 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 8.12 lb

Features

How Is 478-472DS Bearing Engineered for Reliability?

478-472DS 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 56,100 lbf.

The steel cage maintains roller alignment, reducing friction and extending service life.
With a standard radial clearance, it offers reliable performance in various industrial applications.

478-472DS Bearing operates efficiently within a temperature range of -30° to 110°C.
Its open design simplifies lubrication, ensuring smooth operation under heavy loads.

Application

Industrial Uses of 478-472DS Bearing
The 478-472DS 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 effectively. Its chrome steel construction ensures durability in tough working conditions.

In automotive applications, 478-472DS Bearing supports wheel hubs and differential systems, providing reliable performance under high stress. The inch sizing makes it a good fit for American and British vehicle models.

For industrial automation, 478-472DS Bearing’s open design allows for easy lubrication, extending its service life in conveyor systems and robotic arms. The steel cage adds stability during high-speed operations.

Where Is 478-472DS Bearing Used?
You’ll often find 478-472DS Bearing in agricultural machinery, like tractors and harvesters, where its tapered rollers manage heavy loads smoothly. The standard radial clearance ensures consistent performance over time.

In material handling systems, 478-472DS Bearing works well in forklifts and cranes, thanks to its robust construction. The ABEC-1 rating balances precision and cost-effectiveness for these applications.

Built for Heavy-Duty Use: 478-472DS Bearing
The 478-472DS Bearing excels in forestry equipment, such as log splitters and sawmills, where its combined load capacity is essential. Its temperature range suits both cold and moderately hot environments.

For railway applications, 478-472DS Bearing supports axle boxes, ensuring smooth and safe operation. The steel rollers and cage provide long-lasting performance even under constant vibration.

Automotive vs Aerospace: Applications of 478-472DS Bearing
In automotive settings, 478-472DS Bearing is ideal for truck transmissions, handling high torque with ease. The inch measurements align with many commercial vehicle standards.

While not typically used in aerospace, 478-472DS Bearing finds a niche in ground support equipment, like aircraft tugs. Its durability and load capacity make it a practical choice for these heavy-duty tasks.

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