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33885-33821DC TDO (Two-Row Double-Outer Race) (Imperial)

33885-33821DC TDO (Two-Row Double-Outer Race) (Imperial)

The 33885-33821DC is a double-row tapered roller bearing with a 1.75″ bore and 3.75″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 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 heavy radial and thrust loads. The bearing is built to ABEC-1 standards, offering reliable precision for industrial use.

This model is ideal for applications like heavy machinery or vehicle axles where combined loads are common. Its double-row construction provides extra stability under demanding conditions.

Weighing 4.53 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a safe choice for various industrial environments.

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Product Parameters

  • Part Number 33885-33821DC
  • Brand TFL
  • Size 1.75" x 3.75" x 1.125"
  • Bore Dia 1.75"
  • 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 2.09"
  • 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 33885
  • 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 4.53 lb

Features

How Is 33885-33821DC Bearing Engineered for Reliability?

33885-33821DC Bearing features a double-row tapered roller design, providing strong resistance to combined radial and thrust loads.
Its chrome steel construction ensures durability, with a dynamic radial load capacity of 50,800 lbf.

The precision-engineered cage maintains proper roller alignment, reducing friction and wear.
This design enhances the bearing’s performance in demanding industrial applications.

33885-33821DC Bearing operates efficiently within a temperature range of -30° to 110°C.
Its standard radial clearance options allow for flexibility in various operating conditions.

With an ABEC-1 rating, 33885-33821DC Bearing offers reliable precision for general industrial use.
The open seal design simplifies lubrication, ensuring smooth operation over time.

Application

Industrial Uses of 33885-33821DC Bearing
33885-33821DC Bearing is commonly used in heavy machinery, such as construction equipment and mining tools, where its double-row design handles combined radial and thrust loads efficiently. The chrome steel construction ensures durability in harsh working conditions.

What Makes 33885-33821DC Bearing a Preferred Choice?
In automotive applications, 33885-33821DC Bearing is ideal for wheel hubs and differential systems, thanks to its high dynamic radial load capacity. The inch sizing makes it compatible with many American-made vehicles.

Built for Heavy-Duty Use: 33885-33821DC Bearing
For industrial fans and pumps, 33885-33821DC Bearing provides reliable performance with its standard radial clearance and open design. The steel cage adds extra strength, making it suitable for continuous operation.

Automotive vs Aerospace: Applications of 33885-33821DC Bearing
In automotive systems, 33885-33821DC Bearing supports high-load components like axles, while in aerospace, its precision fits auxiliary gearboxes. The ABEC-1 rating ensures consistent performance in both fields.

Where Is 33885-33821DC Bearing Used?
You’ll often find 33885-33821DC Bearing in agricultural machinery, such as tractors and harvesters, where its tapered roller design handles uneven loads smoothly. The temperature range also suits outdoor use in varying climates.

Q&A

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