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27687-27620DA TDO (Two-Row Double-Outer Race) (Imperial)

27687-27620DA TDO (Two-Row Double-Outer Race) (Imperial)

The 27687-27620DA is a double-row tapered roller bearing with a 3.25″ bore and 4.9375″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 45900 lbf and is designed for long-lasting performance in demanding conditions.

Its open design allows for easy lubrication, while the steel cage ensures smooth operation. The bearing can withstand temperatures from -30°C to 110°C, making it versatile for various environments.

This model is part of the 27600 series, known for reliability in heavy-duty applications. Ideal for use in industrial machinery or automotive systems where high radial and thrust loads are common.

Weighing 5.12 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a safe choice for most applications. The standard radial clearance ensures easy installation and maintenance.

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Product Parameters

  • Part Number 27687-27620DA
  • Brand TFL
  • Size 3.25" x 4.9375" x 1"
  • Bore Dia 3.25"
  • Bore Dia Tolerance +0.001" to 0
  • Outer Dia 4.9375"
  • Outer Dia Tolerance +0.001" to 0
  • Double Cup Width 1.75"
  • Double Cup Width Tolerance +0.003" to -0.01
  • Cone Width 1"
  • Cone Width Tolerance +0.002" to -0.01
  • Bearing Width Across Cups 2.1873"
  • Bearing Width Across Cups Tolerance +0.008" to 0
  • Cup Backface ToClear Radius 0.03"
  • Cone Backface Backing Diameter 3.78"
  • Cage Cone Backface Clearance 0.05"
  • Dynamic Radial Load 45900 lbf
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 27687
  • Cup Part Number 27620DA
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Double Row
  • Seal Type Open
  • Cups Type Standard
  • Series 27600
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Rating(One Row 90 Million Revolutions) 6830 lbf
  • Dynamic Thrust Rating(90 Million Revolutions) 4860 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions) 11900 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 5.12 lb

Features

Performance Features of 27687-27620DA Bearing

27687-27620DA Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 45,900 lbf, ensuring reliable performance in heavy-duty applications.

The double-row tapered roller design enhances stability and load distribution.
With a standard radial clearance, it provides flexibility for various operating conditions.

27687-27620DA Bearing operates efficiently within a temperature range of -30° to 110°C.
The steel cage maintains roller alignment, reducing wear and extending service life.

Application

Industrial Uses of 27687-27620DA Bearing
The 27687-27620DA 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 efficiently.
Its chrome steel construction ensures durability in harsh environments, making it a reliable choice for long-term use.

What Makes 27687-27620DA Bearing a Preferred Choice?
In automotive applications, 27687-27620DA Bearing supports wheel hubs and differential systems, providing smooth performance under heavy loads.
The standard radial clearance and ABEC-1 rating make it suitable for a variety of vehicle types.

Built for Heavy-Duty Use: 27687-27620DA Bearing
For industrial conveyor systems, 27687-27620DA Bearing offers excellent load capacity and stability, ensuring consistent operation.
The open seal type allows for easy lubrication, extending the bearing’s service life in demanding conditions.

Automotive vs Aerospace: Applications of 27687-27620DA Bearing
In automotive settings, 27687-27620DA Bearing is ideal for transmissions and axles, where its tapered roller design excels.
While in aerospace, its precision and reliability make it suitable for auxiliary systems, though it’s more commonly found in ground vehicles.

Key Fields for 27687-27620DA Bearing
The 27687-27620DA Bearing is often used in agricultural machinery, such as tractors and harvesters, due to its robust construction.
Its ability to handle high dynamic radial loads makes it a practical choice for farming equipment.

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