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33281-33472DC TDO (Two-Row Double-Outer Race) (Imperial)

33281-33472DC TDO (Two-Row Double-Outer Race) (Imperial)

The 33281-33472DC is a double-row tapered roller bearing with a 2.8125″ bore and 4.7244″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 54200 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 works well in temperatures from -30°C to 110°C, making it suitable for various industrial environments.

This model is part of the 33000 series, known for reliability in heavy-duty applications. Ideal for machinery like gearboxes or wheel hubs where both radial and thrust loads are present.

Weighing 7.27 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a safe choice for most industrial uses.

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Product Parameters

  • Part Number 33281-33472DC
  • Brand TFL
  • Size 2.8125" x 4.7244" x 1.1875"
  • Bore Dia 2.8125"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 4.7244"
  • Outer Dia Tolerance +0.001" to 0
  • Double Cup Width 2.649"
  • Double Cup Width Tolerance +0.003" to -0.01
  • Cone Width 1.1875"
  • Cone Width Tolerance +0.002" to -0.01
  • Bearing Width Across Cups 3.146"
  • Bearing Width Across Cups Tolerance +0.008" to 0
  • Cup Backface ToClear Radius 0.03"
  • Cone Backface Backing Diameter 3.43"
  • Cup Frontface Backing Diameter 4.49"
  • Cage Cone Backface Clearance 0.07"
  • Dynamic Radial Load 54200 lbf
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 33281
  • Cup Part Number 33472DC
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Double Row
  • Seal Type Open
  • Cups Type Standard
  • Series 33000
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Rating(One Row 90 Million Revolutions) 8060 lbf
  • Dynamic Thrust Rating(90 Million Revolutions) 6020 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions) 14000 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 7.27 lb

Features

Performance Features of 33281-33472DC Bearing

33281-33472DC Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 54,200 lbf, ensuring reliable performance in heavy-duty applications.

The double-row tapered roller design distributes loads evenly, reducing wear and extending service life.
With a standard radial clearance, it provides smooth operation in various industrial settings.

33281-33472DC Bearing operates efficiently within a temperature range of -30° to 110°C.
Its steel cage maintains roller alignment, enhancing durability and reducing maintenance needs.

The open seal design allows for easy lubrication, ensuring consistent performance over time.
This bearing is ideal for applications requiring high load capacity and long-term reliability.

Application

Industrial Uses of 33281-33472DC Bearing
This bearing is commonly used in heavy machinery like construction equipment, where its double-row design handles combined radial and thrust loads efficiently. The chrome steel construction ensures durability in rugged environments.

Where Is 33281-33472DC Bearing Used?
You’ll find it in automotive applications, particularly in wheel hubs and differential systems, where its tapered rollers provide smooth performance. The inch sizing makes it ideal for North American vehicle models.

Built for Heavy-Duty Use: 33281-33472DC Bearing
It’s a reliable choice for industrial gearboxes, offering stable operation under high dynamic loads. The open design allows for easy lubrication, extending its service life.

Automotive vs Aerospace: Applications of 33281-33472DC Bearing
In automotive systems, it supports heavy loads in axles and transmissions, while in aerospace, it’s used in landing gear mechanisms. The ABEC-1 rating ensures consistent precision.

Key Fields for 33281-33472DC Bearing
Medical imaging devices benefit from its smooth rotation and low noise. The steel cage adds strength, making it suitable for high-precision equipment.

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