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

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

The 478W-472DC is a double-row tapered roller bearing with a 2.5591″ bore and 4.7244″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 53000 lbf and works well in temperatures from -30°C to 110°C.

Its open design allows for easy lubrication, while the steel cage ensures durability under heavy use. The bearing is designed for standard radial clearance, with options for C3, C4, or C5 if needed.

This model is part of the 475 series, offering reliable performance in demanding conditions. Ideal for industrial machinery or heavy equipment where combined loads are common.

Weighing 6.76 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, making it a safe choice for various applications.

The ABEC-1 rating ensures consistent performance, while the tapered roller design provides smooth operation. Suitable for replacements or new installations in imperial-sized systems.

Its double-row construction distributes loads evenly, extending service life. A practical choice for engineers and maintenance teams needing dependable bearing solutions.

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Product Parameters

  • Part Number 478W-472DC
  • Brand TFL
  • Size 2.5591" x 4.7244" x 1.142"
  • Bore Dia 2.5591"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 4.7244"
  • 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 4.53"
  • Cage Cone Backface Clearance 0.04"
  • Dynamic Radial Load 53000 lbf
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 478W
  • Cup Part Number 472DC
  • 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) 7890 lbf
  • Dynamic Thrust Rating(90 Million Revolutions) 5200 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions) 13700 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 6.76 lb

Features

Performance Features of 478W-472DC Bearing

478W-472DC Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 53,000 lbf, ensuring reliable performance in heavy-duty applications.

The double-row tapered roller design enhances stability and load distribution.
This construction allows 478W-472DC Bearing to handle both radial and thrust loads efficiently.

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

478W-472DC Bearing requires lubrication for optimal performance.
Its standard radial clearance ensures smooth operation in most industrial applications.

Application

Industrial Uses of 478W-472DC Bearing
The 478W-472DC Bearing is commonly used in heavy machinery like construction equipment and mining tools, where its double-row design handles combined radial and thrust loads efficiently. Its chrome steel construction ensures durability even in demanding environments.

Where Is 478W-472DC Bearing Used?
You’ll often find 478W-472DC Bearing in automotive applications, particularly in wheel hubs and differential systems. Its inch sizing makes it a reliable choice for North American vehicle models requiring robust performance.

Built for Heavy-Duty Use: 478W-472DC Bearing
In industrial settings, 478W-472DC Bearing supports conveyor systems and gearboxes, thanks to its high dynamic radial load capacity. The open seal design allows for easy lubrication, extending its service life.

Automotive vs Aerospace: Applications of 478W-472DC Bearing
While 478W-472DC Bearing excels in automotive wheel assemblies, it’s also suitable for aerospace landing gear components. Its tapered roller design ensures smooth operation under varying load conditions.

Essential Roles of 478W-472DC Bearing
For agricultural machinery, 478W-472DC Bearing provides reliable performance in tractors and harvesters. The standard radial clearance offers flexibility for different operational needs.

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