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27881-27820D TDO (Two-Row Double-Outer Race) (Imperial)

27881-27820D TDO (Two-Row Double-Outer Race) (Imperial)

The 27881-27820D is a double-row tapered roller bearing with a 1.5-inch bore and 3.151-inch outer diameter, crafted from sturdy chrome steel. It handles combined loads with a dynamic radial capacity of 30500 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 use. The bearing comes in standard radial clearance but is also available in C3, C4, or C5 options for specific needs.

This model is part of the 27800 series, known for reliability in demanding conditions. Ideal for industrial machinery or automotive applications where combined loads are common.

Weighing 2.59 lb, it’s built to last while meeting RoHS and REACH standards. The ABEC-1 rating ensures consistent performance for most general-purpose applications.

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Product Parameters

  • Part Number 27881-27820D
  • Brand TFL
  • Size 1.5" x 3.151" x 0.933"
  • Bore Dia 1.5"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.151"
  • Outer Dia Tolerance +0.001" to 0
  • Double Cup Width 1.77"
  • Double Cup Width Tolerance +0.003" to -0.01
  • Cone Width 0.933"
  • Cone Width Tolerance +0.002" to -0.01
  • Bearing Width Across Cups 2.25"
  • 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 2.99"
  • Cage Cone Backface Clearance 0.1"
  • Dynamic Radial Load 30500 lbf
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 27881
  • Cup Part Number 27820D
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Double Row
  • Seal Type Open
  • Cups Type Standard
  • Series 27800
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Rating(One Row 90 Million Revolutions) 4550 lbf
  • Dynamic Thrust Rating(90 Million Revolutions) 4370 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions) 7920 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 2.59 lb

Features

Performance Features of 27881-27820D Bearing

27881-27820D Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 30,500 lbf, ensuring reliable performance in heavy-duty applications.

The double-row tapered roller design distributes loads evenly, enhancing durability and reducing wear.
With a standard radial clearance, it provides smooth operation across various industrial uses.

27881-27820D Bearing operates efficiently within a temperature range of -30° to 110°C.
Its steel cage maintains roller alignment, contributing to a longer service life.

The open seal design allows for easy lubrication, ensuring consistent performance.
This bearing is ideal for applications requiring robust load handling and reliability.

Application

Industrial Uses of 27881-27820D Bearing
The 27881-27820D Bearing is commonly used in heavy machinery, such as construction equipment and mining vehicles, where its double-row design handles combined radial and thrust loads effectively. Its chrome steel construction ensures durability in tough working conditions.

Where Is 27881-27820D Bearing Used?
You’ll often find the 27881-27820D Bearing in agricultural machinery, supporting components like gearboxes and wheel hubs. Its inch sizing makes it a reliable choice for older or non-metric systems still in operation.

Built for Heavy-Duty Use: 27881-27820D Bearing
This bearing excels in industrial fans and pumps, where its tapered roller design manages high-speed rotations smoothly. The open seal type allows for easy lubrication, extending its service life in demanding environments.

Automotive vs Aerospace: Applications of 27881-27820D Bearing
In automotive applications, the 27881-27820D Bearing is ideal for truck differentials, providing stability under heavy loads. While not typically used in aerospace, its precision makes it suitable for ground support equipment.

Practical Applications of 27881-27820D Bearing
For conveyor systems in warehouses, the 27881-27820D Bearing offers reliable performance with minimal maintenance. Its standard radial clearance ensures smooth operation even under continuous use.

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