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TS (Single Row Tapered Roller Bearings) (Imperial) 3379-3331

TS (Single Row Tapered Roller Bearings) (Imperial) 3379-3331

The 3379-3331 is a single-row tapered roller bearing with a 1.375″ bore and 3.1562″ outer diameter, crafted from sturdy chrome steel. It manages combined loads up to 25800 lbf radially and 3130 lbf thrust, suitable for demanding applications.

Its open design allows for easy lubrication, while the steel cage ensures durability. 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. Ideal for heavy-duty machinery or automotive systems where combined loads are common.

Weighing 1.6 lb, it offers a balance of strength and manageability. Compliant with RoHS and REACH standards for safe and reliable use.

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Product Parameters

  • Part Number 3379-3331
  • Brand TFL
  • Interchangeable Timken
  • Size 1.375" x 3.1562" x 1.1563"
  • Bore Dia 1.375"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.1562"
  • 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 0.03"
  • Cone Frontface Backing Diameter 1.63"
  • Cone Backface Backing Diameter 1.89"
  • Cup Frontface Backing Diameter 2.95"
  • Cup Backface Backing Diameter 2.83"
  • 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 3331
  • 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 3379-3331 Bearing

3379-3331 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 operational life.
With a temperature range of -30° to 110°C, it performs well in various environments.

How Does 3379-3331 Bearing Reduce Friction?

3379-3331 Bearing’s tapered roller design minimises friction, allowing smooth operation under heavy loads.
The chrome steel construction ensures durability while maintaining efficient performance.
Its standard radial clearance options provide flexibility for different applications.
The steel cage keeps rollers in place, further enhancing smooth movement.

Engineered for Precision: 3379-3331 Bearing

3379-3331 Bearing offers precise performance with its single-row tapered roller design.
The ABEC-1 rating ensures consistent quality for various industrial applications.
Effective lubrication reduces wear, maintaining accuracy over time.
Its imperial measurements provide compatibility with existing systems.

Application

Industrial Uses of 3379-3331 Bearing
You’ll often spot 3379-3331 Bearing in heavy machinery like construction equipment, where its tapered roller design handles combined radial and thrust loads effortlessly. The chrome steel construction gives it lasting durability in tough working conditions.

In automotive applications, 3379-3331 Bearing works well in wheel hubs and differential systems, thanks to its precise imperial sizing. The standard radial clearance makes it adaptable to various vehicle designs without compromising performance.

For industrial gearboxes, 3379-3331 Bearing’s single-row design provides reliable support under continuous operation. Its steel cage maintains roller alignment even during high-load scenarios, ensuring smooth rotation over time.

Where Is 3379-3331 Bearing Used?
This bearing frequently appears in agricultural machinery, particularly in tractor transmissions where load capacity matters. The ABEC-1 rating offers sufficient precision for most farming equipment needs.

You’ll also find 3379-3331 Bearing in material handling systems like conveyor rollers, where its temperature range suits various warehouse environments. The open design simplifies relubrication during routine maintenance checks.

Built for Heavy-Duty Use: 3379-3331 Bearing
Mining equipment benefits from 3379-3331 Bearing’s robust construction when dealing with extreme loads. The tapered rollers distribute stress effectively, preventing premature wear in demanding conditions.

In forestry applications, this bearing stands up well to the vibration and shock loads common in logging machinery. Its 1.6 lb weight strikes a good balance between strength and practical handling during installation.

Automotive vs Aerospace: Applications of 3379-3331 Bearing
While 3379-3331 Bearing serves well in truck axles, its ABEC-1 rating makes it less suited for critical aerospace components. It’s better matched to ground vehicles where extreme precision isn’t the top priority.

The bearing finds more use in industrial pumps than aircraft systems, as its temperature range covers most factory needs. However, it’s reliable enough for essential machinery across multiple sectors.

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