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LM122948 Single Cones (Imperial)

LM122948 Single Cones (Imperial)

The LM122948 is a single-row tapered roller bearing cone with a 4.5-inch bore, designed for combined loads. Made from durable chrome steel, it handles dynamic radial loads up to 54100 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 width is 1.375 inches, with precise tolerances for a secure fit.

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.

Compliant with RoHS and REACH standards, it offers a balance of strength and durability. The ABEC-1 rating ensures consistent performance for standard precision needs.

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Product Parameters

  • Part Number LM122948
  • Brand TFL
  • Interchangeable Brand Timken
  • System of Measurement Inch
  • Type Cones
  • Bearing Part Number LM122948-LM122911
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Series LM122900
  • Bore Dia 4.5"
  • Bore Dia Tolerance +0.001" to 0
  • Cone Width 1.375"
  • Cone Width Tolerance +0.003" to -0.01
  • Cone Backface ToClear Radius 0.13"
  • Cone Frontface Backing Diameter 4.76"
  • Cone Backface Backing Diameter 4.96"
  • Cage Cone Frontface Clearance 0.04"
  • Cage Cone Backface Clearance 0.02"
  • Effective Center Location -0.22"
  • Ring Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 54100 lbf
  • Static Radial Load 80300 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 14000 lbf
  • Dynamic Radial Rating(Two Row 1 Million Revolutions)(C1) 94100 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 6690 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions)(C90) 24400 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 LM122948 Bearing

LM122948 Bearing is crafted from chrome steel, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 54,100 lbf, ensuring reliable performance in tough conditions.

The tapered roller design of LM122948 Bearing minimises friction, enhancing efficiency.
With a standard radial clearance, it provides flexibility for various applications.

LM122948 Bearing operates smoothly within a temperature range of -30° to 110°C.
Its steel cage maintains roller alignment, reducing wear and extending service life.

Designed for durability, LM122948 Bearing meets ABEC-1 precision standards.
It is interchangeable with Timken bearings, offering convenience for replacements.

Application

Industrial Uses of LM122948 Bearing
LM122948 Bearing is commonly used in heavy machinery, such as mining equipment and construction vehicles, where its tapered roller design handles combined loads efficiently. The chrome steel construction ensures durability in tough working conditions.

Where Is LM122948 Bearing Used?
You’ll often find LM122948 Bearing in agricultural machinery, supporting components like gearboxes and axles. Its inch sizing makes it a good fit for older or imperial-based systems.

Built for Heavy-Duty Use: LM122948 Bearing
LM122948 Bearing excels in industrial fans and pumps, where its open design allows for easy lubrication and maintenance. The steel cage adds extra strength for long-term reliability.

Automotive vs Aerospace: Applications of LM122948 Bearing
In automotive applications, LM122948 Bearing is used in truck wheel hubs, while in aerospace, it supports landing gear mechanisms. Its high dynamic load capacity makes it versatile across industries.

Essential Roles of LM122948 Bearing
LM122948 Bearing plays a key role in railway systems, particularly in axle boxes where smooth rotation is critical. The standard radial clearance options ensure compatibility with various operational needs.

Q&A

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