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27684-27620DA TDO (Two-Row Double-Outer Race) (Imperial)

27684-27620DA TDO (Two-Row Double-Outer Race) (Imperial)

The 27684-27620DA is a double-row tapered roller bearing with a 3-inch bore and 4.9375-inch 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 works well in temperatures ranging from -30°C to 110°C, making it versatile for various environments.

This model is part of the 27600 series and comes with standard cups for easy installation. Ideal for heavy-duty applications like industrial gearboxes or construction equipment where both radial and thrust loads are present.

Weighing 5.79 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a reliable choice for replacement or new installations.

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Product Parameters

  • Part Number 27684-27620DA
  • Brand TFL
  • Size 3" x 4.9375" x 1"
  • Bore Dia 3"
  • Bore Dia Tolerance +0.005" 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 3.58"
  • Cage Cone Backface Clearance 0.05"
  • Dynamic Radial Load 45900 lbf
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 27684
  • 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 5.79 lb

Features

How Is 27684-27620DA Bearing Engineered for Reliability?

27684-27620DA Bearing features a double-row tapered roller design, providing strong resistance to combined radial and thrust loads.
Its chrome steel construction ensures durability and long service life in demanding applications.

The bearing’s dynamic radial load capacity reaches 45,900 lbf, making it suitable for heavy-duty operations.
With a standard radial clearance and ABEC-1 rating, it balances precision and reliability.

27684-27620DA Bearing operates efficiently within a temperature range of -30° to 110°C.
Its open design allows for easy lubrication, ensuring smooth performance over time.

Application

Industrial Uses of 27684-27620DA Bearing
The 27684-27620DA 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 even in demanding environments.

In automotive applications, 27684-27620DA Bearing supports wheel hubs and drivetrain components, providing reliable performance under high stress. The inch sizing makes it a preferred choice for North American vehicle models.

For industrial automation, 27684-27620DA Bearing’s tapered roller design offers smooth operation in conveyor systems and robotic arms. The open seal type allows for easy lubrication, extending its service life.

Where Is 27684-27620DA Bearing Used?
You’ll often find 27684-27620DA Bearing in agricultural machinery, where its robust design handles uneven loads and harsh conditions. The steel cage adds extra strength for long-term use.

In material handling systems, 27684-27620DA Bearing ensures reliable performance in forklifts and cranes. Its standard radial clearance makes it versatile for various load requirements.

Built for Heavy-Duty Use: 27684-27620DA Bearing
The 27684-27620DA Bearing excels in forestry equipment, where its tapered rollers manage heavy loads and shock impacts. The ABEC-1 rating balances precision and cost-effectiveness.

For railway applications, 27684-27620DA Bearing provides stability in axle boxes and bogies. Its temperature range suits both cold and moderate climates.

Light-Duty vs Heavy-Duty: Best Uses for 27684-27620DA Bearing
In light-duty scenarios like small gearboxes, 27684-27620DA Bearing offers dependable performance without over-engineering. Its standard lubrication needs simplify maintenance.

For heavy-duty industrial presses, 27684-27620DA Bearing’s dynamic radial load capacity ensures smooth operation. The double-row design distributes stress evenly.

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