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TS (Single Row Tapered Roller Bearings) (Imperial) 3379-3339

TS (Single Row Tapered Roller Bearings) (Imperial) 3379-3339

The 3379-3339 is a single-row tapered roller bearing with a 1.375″ bore and 3.151″ outer diameter, crafted from sturdy chrome steel. It manages combined loads up to 25800 lbf radially and 3130 lbf in thrust, suitable for heavy-duty use.

Its open design allows for easy lubrication, while the steel cage ensures durability under stress. The bearing operates smoothly in temperatures ranging from -30°C to 110°C.

This model is interchangeable with Timken bearings, making it a practical choice for replacements. It’s ideal for applications like vehicle axles or industrial gearboxes where combined loads are common.

Weighing 1.6 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s safe for various industrial uses.

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Product Parameters

  • Part Number 3379-3339
  • Brand TFL
  • Interchangeable Timken
  • Size 1.375" x 3.151" x 1.1563"
  • Bore Dia 1.375"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.151"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 1.1965"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.9375"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.1563"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.14"
  • Cup Backface ToClear Radius 0.06"
  • Cone Frontface Backing Diameter 1.63"
  • Cone Backface Backing Diameter 1.89"
  • Cup Frontface Backing Diameter 2.95"
  • Cup Backface Backing Diameter 2.8"
  • Cage Cone Frontface Clearance 0.07"
  • Cage Cone Backface Clearance 0.06"
  • Effective Center Location -0.43"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 3379
  • Cup Part Number 3339
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 3300
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 25800 lbf
  • Static Radial Load 29100 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 6700 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 3130 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 1.6 lb

Features

Performance Features of 3379-3339 Bearing

3379-3339 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 25,800 lbf, ensuring reliable performance in demanding conditions.
The steel cage maintains roller alignment, reducing friction and extending service life.
With a temperature range of -30° to 110°C, it performs well in various environments.

How Is 3379-3339 Bearing Engineered for Reliability?

3379-3339 Bearing features a single-row tapered roller design, optimised for handling both radial and thrust loads.
The chrome steel construction provides durability, while the standard radial clearance ensures smooth operation.
Its effective centre location of -0.43″ enhances stability under heavy loads.
This design makes it suitable for applications requiring consistent performance.

Built for Durability: 3379-3339 Bearing

3379-3339 Bearing’s chrome steel components resist wear, even under high dynamic radial loads of 25,800 lbf.
The tapered roller design distributes loads evenly, reducing stress on individual components.
With a static radial load capacity of 29,100 lbf, it excels in heavy-duty applications.
Its open design allows for easy lubrication, maintaining optimal performance over time.

Steel vs Ceramic Bearings: Strengths of 3379-3339 Bearing

3379-3339 Bearing uses chrome steel for both rings and rollers, balancing cost and performance.
This material choice provides excellent strength and durability for industrial applications.
The bearing’s dynamic thrust rating of 3,130 lbf ensures reliable performance under combined loads.
Its standard ABEC-1 rating guarantees consistent precision in most operating conditions.

Application

Industrial Uses of 3379-3339 Bearing
The 3379-3339 Bearing is commonly used in heavy machinery like construction equipment and mining tools, where its tapered roller design handles combined loads effectively. Its chrome steel construction ensures durability even in demanding environments.

In automotive applications, 3379-3339 Bearing fits well in wheel hubs and drivetrains, providing reliable performance under both radial and thrust loads. The inch sizing makes it a convenient choice for American and British vehicle models.

For industrial gearboxes, 3379-3339 Bearing’s open design allows for easy lubrication, extending its service life in high-speed operations. The steel cage adds extra strength, making it suitable for continuous use.

What Makes 3379-3339 Bearing a Preferred Choice?
This bearing excels in agricultural machinery, such as tractors and harvesters, thanks to its robust build and standard radial clearance. The ABEC-1 rating ensures consistent performance without unnecessary precision costs.

In conveyor systems, 3379-3339 Bearing’s tapered rollers reduce friction, improving efficiency in material handling. Its temperature range also makes it adaptable to both hot and cold working conditions.

Built for Heavy-Duty Use: 3379-3339 Bearing
You’ll often find 3379-3339 Bearing in forestry equipment, where its combined load capacity handles the uneven stresses of logging operations. The steel cage and rollers stand up to rough treatment.

For pump systems, this bearing’s compatibility with Timken models makes it a versatile replacement option. Its dynamic radial load rating ensures reliability in high-pressure environments.

Automotive vs Aerospace: Applications of 3379-3339 Bearing
In automotive settings, 3379-3339 Bearing works well in axle systems, offering a balance of strength and affordability. The inch measurements simplify installation in most US-made vehicles.

While not typically used in aerospace, this bearing’s temperature range suits it for ground support equipment. Its standard clearance provides enough flexibility for varying operational conditions.

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