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

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

The 27684A-27620DA is a two-row tapered roller bearing with a 3-inch bore and 4.9375-inch outer diameter, built from sturdy chrome steel. It handles combined loads with a dynamic radial capacity of 43300 lbf and operates smoothly in temperatures from -30°C to 110°C.

Its double-row design provides extra stability, while the open seal allows for easy lubrication. The steel cage ensures durability, making it suitable for heavy-duty applications.

This bearing is ideal for industrial machinery or vehicle axles where both radial and thrust loads are present. It comes in standard radial clearance but is also available in C3, C4, or C5 options.

Weighing 5.85 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a reliable choice for replacements or new installations.

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Product Parameters

  • Part Number 27684A-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 3.35"
  • Cage Cone Backface Clearance 0.05"
  • Dynamic Radial Load 43300 lbf
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 27684A
  • 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) 6450 lbf
  • Dynamic Thrust Rating(90 Million Revolutions) 4590 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions) 11200 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 5.85 lb

Features

How Is 27684A-27620DA Bearing Engineered for Reliability?

27684A-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 dynamic radial load capacity reaches 43,300 lbf, making it suitable for heavy-duty use.
With a standard radial clearance, it offers reliable performance across various operating conditions.

What Makes 27684A-27620DA Bearing Suitable for High-Temperature Applications?

27684A-27620DA Bearing operates effectively within a temperature range of -30° to 110°C.
Its chrome steel rollers and rings maintain structural integrity even under thermal stress.
The open seal design allows for proper lubrication, essential for high-temperature performance.
This ensures consistent operation in challenging environments.

Built for Durability: 27684A-27620DA Bearing

27684A-27620DA Bearing is constructed with high-quality chrome steel for both rollers and rings.
The steel cage enhances stability, reducing wear during operation.
Its double-row design distributes loads evenly, extending the bearing’s lifespan.
With a weight of 5.85 lb, it balances strength and practicality.

Steel vs Ceramic Bearings: Strengths of 27684A-27620DA Bearing

27684A-27620DA Bearing uses chrome steel for its rollers and rings, offering excellent strength and cost-efficiency.
The material choice ensures reliable performance under heavy radial and thrust loads.
Its steel cage provides robust support, maintaining alignment during operation.
This makes it a practical choice for industrial applications.

Application

Industrial Uses of 27684A-27620DA Bearing
The 27684A-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 effectively. Its chrome steel construction ensures durability in demanding environments.

Where Is 27684A-27620DA Bearing Used?
You’ll often find 27684A-27620DA Bearing in agricultural machinery, like tractors and harvesters, where its tapered roller design provides reliable performance under varying loads. The inch sizing makes it a good fit for North American equipment.

Built for Heavy-Duty Use: 27684A-27620DA Bearing
This bearing excels in industrial gearboxes, where its open design allows for easy lubrication and maintenance. The standard radial clearance ensures smooth operation even under high stress.

Automotive vs Aerospace: Applications of 27684A-27620DA Bearing
In automotive applications, 27684A-27620DA Bearing supports wheel hubs and differential systems, offering stability under heavy loads. For aerospace, its precision makes it suitable for landing gear components.

Practical Applications of 27684A-27620DA Bearing
The 27684A-27620DA Bearing is ideal for conveyor systems in manufacturing plants, where its double-row construction handles both radial and axial forces. Its steel cage adds extra strength for long-term use.

Q&A

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