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LL319349 Single Cones (Imperial)

LL319349 Single Cones (Imperial)

The LL319349 is a single-row tapered roller bearing cone with a 3.75-inch bore, designed for combined loads. Made from durable chrome steel, it handles dynamic radial loads up to 14300 lbf and static loads up to 22400 lbf.

Its open design allows easy maintenance, while the steel cage ensures reliable performance. 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 applications like industrial machinery or vehicle axles where combined loads are common.

With standard radial clearance and ABEC-1 rating, it offers a balance of precision and durability. Compliant with RoHS and REACH standards for safe use.

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Product Parameters

  • Part Number LL319349
  • Brand TFL
  • Interchangeable Brand Timken
  • System of Measurement Inch
  • Type Cones
  • Bearing Part Number LL319349-LL319310
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Bore Dia 3.75"
  • Bore Dia Tolerance +0.001" to 0
  • Cone Width 0.5938"
  • Cone Width Tolerance +0.003" to -0.01
  • Cone Backface ToClear Radius 0.06"
  • Cone Frontface Backing Diameter 3.94"
  • Cone Backface Backing Diameter 4.06"
  • Cage Cone Frontface Clearance 0.12"
  • Cage Cone Backface Clearance 0.01"
  • Effective Center Location 0.17"
  • Ring Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 14300 lbf
  • Static Radial Load 22400 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 3700 lbf
  • Dynamic Radial Rating(Two Row 1 Million Revolutions)(C1) 24800 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 2230 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions)(C90) 6440 lbf
  • Temperature Range -30° to 110 °C
  • ABEC Rating ABEC-1
  • Radial Clearance Standard (Available in C3/C4/C5)
  • RoHS Compliant
  • REACH Compliant

Features

Performance Features of LL319349 Bearing

LL319349 Bearing is crafted from chrome steel, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 14,300 lbf, ensuring reliable performance in tough conditions.

The steel cage maintains roller alignment, reducing wear and extending operational life.
With a temperature range of -30° to 110°C, it performs well in various environments.

LL319349 Bearing’s standard radial clearance allows for flexibility in different applications.
Its tapered roller design ensures smooth operation under both radial and thrust loads.

Application

Industrial Uses of LL319349 Bearing
LL319349 Bearing is commonly used in heavy machinery, such as construction equipment and mining tools, where its tapered roller design handles combined loads effectively. The open seal type allows for easy lubrication, ensuring long service life in demanding conditions.

Where Is LL319349 Bearing Used?
You’ll often find LL319349 Bearing in agricultural machinery, supporting components like gearboxes and wheel hubs. Its inch sizing makes it a good fit for older equipment still using imperial measurements.

Built for Heavy-Duty Use: LL319349 Bearing
LL319349 Bearing works well in railway applications, particularly in axle boxes where reliability is key. The chrome steel construction provides excellent wear resistance, even under constant vibration.

Automotive vs Aerospace: Applications of LL319349 Bearing
In automotive settings, LL319349 Bearing supports drivetrain components in trucks and heavy vehicles. While not typically used in aerospace, its precision makes it suitable for some ground support equipment.

Practical Applications of LL319349 Bearing
LL319349 Bearing performs reliably in industrial fans and blowers, where its standard radial clearance accommodates thermal expansion. The steel cage maintains roller alignment during high-speed operation.

Q&A

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