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27690-27620DA TDO (Two-Row Double-Outer Race) (Imperial)

27690-27620DA TDO (Two-Row Double-Outer Race) (Imperial)

The 27690-27620DA is a double-row tapered roller bearing with a 3.28″ bore and 4.94″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 45,900 lbf and works well in temperatures from -30°C to 110°C.

Its open design allows for easy lubrication, while the steel cage ensures durability. The bearing comes in standard radial clearance but is also available in C3, C4, or C5 options for different fits.

This model is part of the 27600 series, making it a reliable choice for heavy-duty applications. Ideal for use in industrial gearboxes or machinery where both radial and thrust loads are present.

Weighing 5.03 lbs, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe and versatile use.

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Product Parameters

  • Part Number 27690-27620DA
  • Brand TFL
  • Size 3.2813" x 4.9375" x 1"
  • Bore Dia 3.2813"
  • 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 27690
  • 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 5.03 lb

Features

Why Choose 27690-27620DA Bearing for Combined Loads?

27690-27620DA Bearing is built with chrome steel rings and rollers, offering strong resistance to both radial and thrust loads.
Its dynamic radial load capacity reaches 45,900 lbf, ensuring reliable performance in demanding conditions.
The double-row tapered roller design distributes loads evenly, reducing wear and extending service life.
With a standard radial clearance, it provides smooth operation across various applications.

How Is 27690-27620DA Bearing Engineered for Reliability?

27690-27620DA Bearing features a steel cage that maintains roller alignment, enhancing durability under heavy loads.
The chrome steel construction resists wear, making it suitable for high-stress environments.
Its double-row design ensures balanced load distribution, improving overall performance.
The bearing operates efficiently within a temperature range of -30° to 110°C.

Built for Durability: 27690-27620DA Bearing

27690-27620DA Bearing’s chrome steel rollers and rings provide excellent resistance to wear and fatigue.
The tapered roller design handles combined loads effectively, ensuring long-term reliability.
With a dynamic radial rating of 11,900 lbf for two rows, it excels in heavy-duty applications.
Its standard radial clearance allows for smooth operation in various conditions.

Application

Industrial Uses of 27690-27620DA Bearing
27690-27620DA 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. The chrome steel construction ensures durability in demanding environments.

Where Is 27690-27620DA Bearing Used?
You’ll often find 27690-27620DA Bearing in industrial gearboxes and drivetrains, where its tapered roller design provides smooth operation under high loads. The inch sizing makes it a good fit for North American machinery standards.

Built for Heavy-Duty Use: 27690-27620DA Bearing
27690-27620DA Bearing excels in applications like mining equipment and large conveyor systems, thanks to its robust steel cage and high dynamic load capacity. The open seal type allows for easy lubrication and maintenance.

Automotive vs Aerospace: Applications of 27690-27620DA Bearing
In automotive systems, 27690-27620DA Bearing supports axles and wheel hubs, while in aerospace, it’s used in landing gear assemblies. Its temperature range and ABEC-1 rating ensure reliability across different conditions.

Practical Applications of 27690-27620DA Bearing
27690-27620DA Bearing is a reliable choice for wind turbine yaw systems, where its combined load handling and standard radial clearance are beneficial. The steel roller material adds to its long service life.

Q&A

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