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33891-33821D TDO (Two-Row Double-Outer Race) (Imperial)

33891-33821D TDO (Two-Row Double-Outer Race) (Imperial)

The 33891-33821D is a two-row tapered roller bearing with a 2.0625″ bore and 3.75″ outer diameter, built from sturdy chrome steel for combined load handling. It supports dynamic radial loads up to 50,800 lbf and fits snugly with precise imperial tolerances.

Its double-row design boosts load capacity, while the open structure allows easy lubrication. The steel cage ensures durability, and it operates smoothly in temperatures from -30°C to 110°C.

This bearing is ideal for heavy-duty applications like truck axles or industrial gearboxes where combined loads are common. With standard radial clearance and ABEC-1 rating, it offers reliable performance for general machinery.

Weighing 3.9 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a practical choice for replacements or new installations.

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Product Parameters

  • Part Number 33891-33821D
  • Brand TFL
  • Size 2.0625" x 3.75" x 1.125"
  • Bore Dia 2.0625"
  • 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 2.6"
  • 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 33891
  • 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 3.9 lb

Features

Performance Features of 33891-33821D Bearing

33891-33821D Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 50,800 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 flexibility for various operational needs.

33891-33821D Bearing operates efficiently within a temperature range of -30° to 110°C.
Its steel cage maintains roller alignment, ensuring smooth and consistent performance.

The bearing’s open design simplifies lubrication, reducing maintenance requirements.
Its robust construction makes it suitable for demanding industrial environments.

Application

Industrial Uses of 33891-33821D Bearing
The 33891-33821D 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.

What Makes 33891-33821D Bearing a Preferred Choice?
With its tapered roller design, 33891-33821D Bearing excels in applications like truck wheel hubs and gearboxes, providing reliable performance under high stress. The open seal type allows for easy lubrication, extending its service life.

Built for Heavy-Duty Use: 33891-33821D Bearing
In industrial settings like mining and forestry, 33891-33821D Bearing withstands extreme loads and harsh conditions. Its standard radial clearance offers flexibility for various operational requirements.

Automotive vs Aerospace: Applications of 33891-33821D Bearing
While 33891-33821D Bearing is a staple in automotive drivetrains, its precision also suits aerospace landing gear systems. The inch sizing makes it compatible with many North American machinery standards.

Essential Roles of 33891-33821D Bearing
From conveyor systems to wind turbines, 33891-33821D Bearing provides stable performance in high-load scenarios. The steel cage adds robustness, making it a dependable choice for continuous operation.

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