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LM78349A Single Cones (Imperial)
LM78349A Single Cones (Imperial)

LM78349A Single Cones (Imperial)

The LM78349A is a single-row tapered roller bearing cone with a 1.3775-inch bore, designed for combined loads. Made from durable chrome steel, it handles dynamic radial loads up to 11300 lbf and operates smoothly in temperatures from -30°C to 110°C.

Its open design allows for easy maintenance, while the steel cage ensures reliable performance. The cone features standard radial clearance, with options for C3, C4, or C5 clearance if needed.

This model is interchangeable with Timken bearings, making it a practical choice for replacements. Ideal for industrial machinery or automotive applications where combined loads are common.

Compliant with RoHS and REACH standards, it meets safety and environmental requirements. The ABEC-1 rating ensures consistent performance for general engineering use.

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Product Parameters

  • Part Number LM78349A
  • Brand TFL
  • Interchangeable Brand Timken
  • System of Measurement Inch
  • Type Cones
  • Bearing Part Number LM78349A-LM78310A , LM78349A-LM78310C
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Bore Dia 1.3775"
  • Bore Dia Tolerance +0.005" to 0
  • Cone Width 0.6693"
  • Cone Width Tolerance +0.003" to -0.01
  • Cone Backface ToClear Radius 0.06"
  • Cone Frontface Backing Diameter 1.56"
  • Cone Backface Backing Diameter 1.65"
  • Cage Cone Frontface Clearance 0.07"
  • Cage Cone Backface Clearance 0.01"
  • Effective Center Location -0.1"
  • Ring Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 11300 lbf
  • Static Radial Load 11800 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 2940 lbf
  • Dynamic Radial Rating(Two Row 1 Million Revolutions)(C1) 19700 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 2230 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions)(C90) 5110 lbf
  • Temperature Range -30° to 110 °C
  • ABEC Rating ABEC-1
  • Radial Clearance Standard (Available in C3/C4/C5)
  • RoHS Compliant
  • REACH Compliant

Features

How Is LM78349A Bearing Engineered for Reliability?

LM78349A Bearing is crafted from chrome steel, offering robust resistance to combined loads.
Its dynamic radial load capacity reaches 11,300 lbf, ensuring dependable performance in tough conditions.

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

LM78349A Bearing’s tapered roller design ensures smooth operation under both radial and thrust loads.
Its standard radial clearance options provide flexibility for different applications.

Application

Industrial Uses of LM78349A Bearing
LM78349A Bearing is commonly used in heavy machinery, such as construction equipment and mining tools, where its tapered roller design handles combined loads efficiently. The chrome steel construction ensures durability even in demanding environments.

Where Is LM78349A Bearing Used?
You’ll often find LM78349A Bearing in automotive applications like truck wheel hubs, where its ability to manage both radial and thrust loads is essential. The inch sizing makes it a good fit for North American vehicle designs.

Built for Heavy-Duty Use: LM78349A Bearing
LM78349A Bearing excels in industrial gearboxes, providing reliable performance under high stress. Its steel cage offers added strength, making it suitable for prolonged use in harsh conditions.

Automotive vs Aerospace: Applications of LM78349A Bearing
In automotive systems, LM78349A Bearing supports wheel assemblies, while in aerospace, it might be used in auxiliary equipment. Its versatility comes from the tapered roller design, which adapts well to varying load types.

Key Fields for LM78349A Bearing
LM78349A Bearing is a solid choice for agricultural machinery, where its robust construction handles dirt and debris. The open seal type allows for easy cleaning and maintenance in such environments.

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