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33880-33821D TDO (Two-Row Double-Outer Race) (Imperial)

33880-33821D TDO (Two-Row Double-Outer Race) (Imperial)

The 33880-33821D is a double-row tapered roller bearing with a 1.5″ bore and 3.75″ outer diameter, built from sturdy chrome steel for heavy-duty use. It handles combined loads with a dynamic radial capacity of 50800 lbf and operates smoothly in temperatures from -30°C to 110°C.

Its open design allows for easy lubrication, while the steel cage ensures durability under high stress. The bearing’s double-row construction provides extra stability, making it suitable for demanding applications.

This model fits standard 33800 series setups and comes with ABEC-1 precision. Ideal for industrial machinery or vehicle axles where both radial and thrust loads are present.

Weighing 4.91 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a reliable choice for replacements or upgrades.

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Product Parameters

  • Part Number 33880-33821D
  • Brand TFL
  • Size 1.5" x 3.75" x 1.125"
  • Bore Dia 1.5"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.75"
  • Outer Dia Tolerance +0.001" to 0
  • Double Cup Width 2.0624"
  • Double Cup Width Tolerance +0.003" to -0.01
  • Cone Width 1.125"
  • Cone Width Tolerance +0.002" to -0.01
  • Bearing Width Across Cups 2.5"
  • Bearing Width Across Cups Tolerance +0.008" to 0
  • Cup Backface ToClear Radius 0.03"
  • Cone Backface Backing Diameter 2.13"
  • Cup Frontface Backing Diameter 3.56"
  • Cage Cone Backface Clearance 0.04"
  • Dynamic Radial Load 50800 lbf
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 33880
  • Cup Part Number 33821D
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Double Row
  • Seal Type Open
  • Cups Type Standard
  • Series 33800
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Rating(One Row 90 Million Revolutions) 7560 lbf
  • Dynamic Thrust Rating(90 Million Revolutions) 4270 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions) 13200 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 4.91 lb

Features

How Does 33880-33821D Bearing Handle Combined Loads?

33880-33821D Bearing is built with chrome steel rings and rollers, offering robust performance under combined radial and thrust loads.
Its dynamic radial load capacity reaches 50,800 lbf, ensuring reliability in heavy-duty applications.
The double-row tapered roller design distributes loads evenly, enhancing durability and reducing wear.
With a temperature range of -30° to 110°C, it performs well in various operating conditions.

What Makes 33880-33821D Bearing Durable?

33880-33821D Bearing features a chrome steel construction, providing excellent resistance to wear and fatigue.
The double-row design increases load capacity, making it suitable for demanding industrial use.
Precision tolerances ensure smooth operation, even under high stress.
Its standard radial clearance options allow for flexibility in different applications.

Engineered for Precision: 33880-33821D Bearing

33880-33821D Bearing’s tapered roller design ensures accurate alignment and efficient load distribution.
The steel cage maintains roller positioning, reducing friction and extending service life.
With an ABEC-1 rating, it offers reliable performance for general industrial applications.
Its open design simplifies lubrication, ensuring consistent operation over time.

Built for Reliability: 33880-33821D Bearing

33880-33821D Bearing’s chrome steel components resist wear, maintaining performance in tough conditions.
The double-row construction handles high radial and thrust loads, ideal for heavy machinery.
Its standard lubrication requirement ensures smooth operation with minimal maintenance.
The bearing’s precise tolerances contribute to its long-lasting reliability.

Application

Industrial Uses of 33880-33821D Bearing
The 33880-33821D Bearing is commonly used in heavy machinery, such as construction equipment and agricultural vehicles, where its double-row design handles combined radial and thrust loads effectively. Its chrome steel construction ensures durability in demanding environments.

Where Is 33880-33821D Bearing Used?
You’ll often find the 33880-33821D Bearing in automotive applications like truck wheel hubs, where its tapered roller design provides stability under heavy loads. The inch sizing makes it a good fit for North American machinery standards.

Built for Heavy-Duty Use: 33880-33821D Bearing
In industrial gearboxes, the 33880-33821D Bearing offers reliable performance thanks to its robust steel cage and high dynamic load capacity. Its open design simplifies lubrication, extending service life in continuous operation.

Automotive vs Aerospace: Applications of 33880-33821D Bearing
While the 33880-33821D Bearing excels in automotive systems like differentials, its precision also suits aerospace landing gear components. The ABEC-1 rating ensures consistent performance in both high and low-speed scenarios.

Perfect Fit for Automation: 33880-33821D Bearing
The 33880-33821D Bearing works well in automated conveyor systems, where its tapered rollers reduce friction and wear. Its standard radial clearance allows for smooth operation in repetitive motion applications.

Q&A

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