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33889-33821DC TDO (Two-Row Double-Outer Race) (Imperial)

33889-33821DC TDO (Two-Row Double-Outer Race) (Imperial)

The 33889-33821DC is a two-row tapered roller bearing with a 2-inch bore and 3.75-inch outer diameter, built from sturdy chrome steel. It handles combined loads up to 50,800 lbf and is designed for long-lasting performance in demanding conditions.

Its double-row construction provides extra stability, while the open design allows for easy lubrication. The bearing operates smoothly in temperatures ranging from -30°C to 110°C.

This model is part of the 33800 series and comes with standard cups for straightforward installation. Ideal for heavy-duty applications like truck axles or industrial gearboxes where high radial and thrust loads are common.

Weighing 4.02 lbs, it’s a robust choice for machinery requiring reliable load support. Compliant with RoHS and REACH standards for safe use.

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Product Parameters

  • Part Number 33889-33821DC
  • Brand TFL
  • Size 2" x 3.7500" x 1.125"
  • Bore Dia 2"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.7500"
  • 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 2.52"
  • 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 33889
  • Cup Part Number 33821DC
  • 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 4.02 lb

Features

Performance Features of 33889-33821DC Bearing

33889-33821DC Bearing is built with chrome steel rings and rollers, offering robust performance under combined loads.
Its dynamic radial load capacity reaches 50,800 lbf, making it suitable for heavy-duty applications.

The double-row tapered roller design ensures stability and efficient load distribution.
With a standard radial clearance, it provides reliable operation in various industrial settings.

33889-33821DC Bearing operates within a temperature range of -30° to 110°C, ensuring versatility.
Its steel cage maintains roller alignment, reducing wear and extending service life.

Application

Industrial Uses of 33889-33821DC Bearing
33889-33821DC Bearing is commonly used in heavy machinery like construction equipment, where its double-row design handles combined radial and thrust loads effectively. The chrome steel construction ensures durability even in demanding environments.

In automotive applications, 33889-33821DC Bearing supports wheel hubs and drivetrain components, providing reliable performance under varying loads. Its inch sizing makes it a good fit for many North American vehicle models.

For industrial conveyor systems, 33889-33821DC Bearing’s tapered roller design offers smooth operation and long service life. The open seal type allows for easy lubrication, reducing maintenance downtime.

What Makes 33889-33821DC Bearing a Preferred Choice?
33889-33821DC Bearing is often chosen for agricultural machinery due to its ability to withstand harsh conditions. The steel cage adds extra strength, making it suitable for high-load scenarios.

In mining equipment, 33889-33821DC Bearing’s robust construction ensures reliable performance under extreme stress. The standard radial clearance provides flexibility for various operational needs.

Built for Heavy-Duty Use: 33889-33821DC Bearing
33889-33821DC Bearing excels in forestry equipment, where its combined load capacity is essential. The tapered rollers distribute stress evenly, enhancing longevity.

For railway applications, 33889-33821DC Bearing’s temperature range makes it adaptable to varying climates. The ABEC-1 rating ensures consistent performance without over-engineering.

Light-Duty vs Heavy-Duty: Best Uses for 33889-33821DC Bearing
In light-duty applications like small industrial pumps, 33889-33821DC Bearing provides reliable support without unnecessary bulk. Its standard lubrication requirements simplify upkeep.

For heavy-duty uses like oil rig machinery, 33889-33821DC Bearing’s dynamic radial load rating ensures stability. The double-row design is particularly useful where space is limited.

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