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

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

The 27689H-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 43300 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 under heavy use. The bearing comes in standard radial clearance, with options for C3, C4, or C5 if needed.

This model is part of the 27600 series, ideal for applications like heavy machinery or vehicle axles where combined loads are common. Weighing 5.02 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. The ABEC-1 rating ensures consistent performance for general industrial use.

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

Product Parameters

  • Part Number 27689H-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 0.04"
  • Dynamic Radial Load 43300 lbf
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 27689H
  • 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 5.02 lb

Features

Performance Features of 27689H-27620DA Bearing

27689H-27620DA Bearing is built with chrome steel rings and rollers, offering robust performance under combined loads.
Its dynamic radial load capacity reaches 43,300 lbf, making it suitable for heavy-duty applications.
The double-row tapered roller design ensures stability and efficient load distribution.
With a standard radial clearance, it provides reliable operation in various conditions.

How Is 27689H-27620DA Bearing Engineered for Reliability?

27689H-27620DA Bearing features a steel cage that maintains roller alignment, reducing wear and extending lifespan.
The chrome steel construction resists wear, ensuring consistent performance over time.
Its double-row design enhances load-bearing capacity, making it ideal for demanding environments.
The bearing operates effectively within a temperature range of -30° to 110°C.

Built for Durability: 27689H-27620DA Bearing

27689H-27620DA Bearing’s tapered roller design minimises friction, promoting smooth operation.
The chrome steel materials provide excellent resistance to wear and corrosion.
Its dynamic thrust rating of 4,590 lbf ensures reliable performance under axial loads.
The bearing’s standard radial clearance allows for easy installation and maintenance.

Steel vs Ceramic Bearings: Strengths of 27689H-27620DA Bearing

27689H-27620DA Bearing uses chrome steel for both rollers and rings, balancing cost and durability.
The steel cage ensures proper roller alignment, enhancing the bearing’s lifespan.
With a dynamic radial load rating of 43,300 lbf, it handles heavy loads efficiently.
Its open design simplifies lubrication, reducing maintenance requirements.

Application

Industrial Uses of 27689H-27620DA Bearing
The 27689H-27620DA Bearing is commonly used in heavy machinery like construction equipment and mining rigs, 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.

Where Is 27689H-27620DA Bearing Used?
You’ll often find the 27689H-27620DA Bearing in automotive applications, particularly in wheel hubs and differential systems, where its tapered roller design provides smooth performance.
The inch sizing makes it compatible with many North American vehicle models, offering versatility across different brands.

Built for Heavy-Duty Use: 27689H-27620DA Bearing
In industrial settings like conveyor systems and gearboxes, the 27689H-27620DA Bearing excels due to its high dynamic load capacity.
The open seal type allows for easy lubrication, ensuring minimal downtime during maintenance.

Automotive vs Aerospace: Applications of 27689H-27620DA Bearing
While the 27689H-27620DA Bearing is popular in automotive wheel assemblies, it’s also suitable for aerospace landing gear components, thanks to its robust construction.
The standard radial clearance option provides flexibility for various operational demands.

Key Fields for 27689H-27620DA Bearing
The 27689H-27620DA Bearing is ideal for agricultural machinery, where its tapered rollers handle uneven loads from ploughs and harvesters.
Its steel cage adds extra strength, making it a dependable choice for high-stress applications.

Q&A

SEND INQUIRY