+86 15806631151 [email protected]
TFL BEARINGS
REQUEST A QUOTE
27689-27620DA TDO (Two-Row Double-Outer Race) (Imperial)

27689-27620DA TDO (Two-Row Double-Outer Race) (Imperial)

The 27689-27620DA is a double-row tapered roller bearing with a 3.28″ bore and 4.93″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 45,900 lbf and is designed for long-lasting performance.

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

This model is part of the 27600 series, with standard radial clearance and ABEC-1 precision. Ideal for heavy-duty applications like industrial gearboxes or vehicle axles where combined loads are common.

Weighing 5.06 lbs, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe use in most environments.

Get A Free Quote
    Description Features Application Q&A Featured Products Our Process

Product Parameters

  • Part Number 27689-27620DA
  • 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 3.54"
  • Cage Cone Backface Clearance 0.05"
  • Dynamic Radial Load 45900 lbf
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 27689
  • 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 5.06 lb

Features

Performance Features of 27689-27620DA Bearing

27689-27620DA 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 of 27689-27620DA Bearing provides stability and even load distribution.
This construction enhances durability, making it suitable for demanding industrial environments.

27689-27620DA Bearing operates efficiently within a temperature range of -30° to 110°C.
Its standard radial clearance options allow for flexibility in various operational conditions.

With a weight of 5.06 lb, 27689-27620DA Bearing balances strength and practicality.
The steel cage ensures proper roller alignment, reducing wear and extending service life.

Application

Industrial Uses of 27689-27620DA Bearing
The 27689-27620DA 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. Its chrome steel construction ensures durability in demanding environments.

In automotive applications, 27689-27620DA Bearing supports wheel hubs and differential systems, providing reliable performance under high stress. The inch sizing makes it compatible with many American and British vehicle models.

For industrial automation, 27689-27620DA Bearing’s tapered roller design offers stability in conveyor systems and robotic arms. The open seal type allows for easy lubrication, extending its service life in continuous operations.

Where Is 27689-27620DA Bearing Used?
You’ll often find 27689-27620DA Bearing in agricultural machinery, like tractors and harvesters, where its robust construction withstands rough conditions. The standard radial clearance ensures smooth operation even with varying loads.

In material handling systems, 27689-27620DA Bearing’s high dynamic radial load capacity makes it ideal for forklifts and cranes. The steel cage adds extra strength, reducing wear over time.

Built for Heavy-Duty Use: 27689-27620DA Bearing
The 27689-27620DA Bearing excels in railway applications, such as axle boxes, where its tapered rollers manage both radial and axial forces. Its ABEC-1 rating balances precision and cost-effectiveness.

For power transmission systems, 27689-27620DA Bearing’s double-row setup ensures consistent performance in gearboxes and driveshafts. The chrome steel rollers provide excellent resistance to fatigue and wear.

Automotive vs Aerospace: Applications of 27689-27620DA Bearing
In automotive settings, 27689-27620DA Bearing is trusted for drivetrain components, offering reliable load handling. Its inch measurements suit older vehicle designs still in use today.

For aerospace ground equipment, 27689-27620DA Bearing’s temperature range (-30° to 110°C) makes it suitable for auxiliary systems. However, its weight limits use in airborne applications.

Q&A

SEND INQUIRY