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39578 Single Cones (Imperial)
39578 Single Cones (Imperial)

39578 Single Cones (Imperial)

The 39578 single cone is a tapered roller bearing with a 2.125-inch bore, designed for combined loads. Made from durable chrome steel, it handles dynamic radial loads up to 37,500 lbf and operates smoothly in temperatures from -30°C to 110°C.

Its single-row construction and open design make it easy to maintain, while the steel cage ensures reliable performance. The bearing is interchangeable with Timken models, offering flexibility for replacements.

With a cone width of 1.1875 inches, it fits compact spaces without compromising strength. Ideal for heavy-duty applications like industrial machinery or vehicle axles where combined loads are common.

Compliant with RoHS and REACH standards, it’s a safe and robust choice for various engineering needs. The standard radial clearance can also be adjusted to C3, C4, or C5 for specific requirements.

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Product Parameters

  • Part Number 39578
  • Brand TFL
  • Interchangeable Brand Timken
  • System of Measurement Inch
  • Type Cones
  • Bearing Part Number 39578-39520 , 39578-39520P , 39578-39520XX , 39578-39521 , 39578-39522 , 39578-39528
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Series 39500
  • Bore Dia 2.125"
  • Bore Dia Tolerance +0.005" to 0
  • Cone Width 1.1875"
  • Cone Width Tolerance +0.003" to -0.01
  • Cone Backface ToClear Radius 0.14"
  • Cone Frontface Backing Diameter 2.52"
  • Cone Backface Backing Diameter 2.76"
  • Cage Cone Frontface Clearance 0.13"
  • Cage Cone Backface Clearance 0.05"
  • Effective Center Location -0.26"
  • Ring Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 37500 lbf
  • Static Radial Load 50300 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 9730 lbf
  • Dynamic Radial Rating(Two Row 1 Million Revolutions)(C1) 65300 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 5650 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions)(C90) 16900 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 39578 Single Cones

39578 Single Cones are crafted from chrome steel, offering robust resistance to combined loads.

Their dynamic radial load capacity reaches 37,500 lbf, making them suitable for demanding industrial applications.

The tapered roller design ensures smooth operation and efficient load distribution.

With a temperature range of -30° to 110°C, they perform reliably in various environments.

How Is 39578 Single Cones Engineered for Reliability?

39578 Single Cones feature a steel cage that maintains roller alignment, reducing wear and extending lifespan.

The standard radial clearance allows for flexibility in different operating conditions.

Their ABEC-1 rating ensures consistent precision and performance.

Designed for combined loads, they handle both radial and thrust forces effectively.

Built for Durability: 39578 Single Cones

39578 Single Cones withstand high static radial loads up to 50,300 lbf, ensuring long-term reliability.

The chrome steel construction resists wear, even in harsh industrial environments.

Their tapered roller design minimises friction, promoting smooth operation.

With interchangeable options from Timken, they offer versatile compatibility.

Application

Industrial Uses of 39578 Single Cones
The 39578 Single Cones are widely used in heavy machinery, such as construction equipment and mining gear, where their tapered roller design handles combined loads efficiently. The chrome steel construction ensures durability even in demanding environments.

In automotive applications, 39578 Single Cones support wheel hubs and drivetrain components, providing reliable performance under varying loads. Their inch sizing makes them a common choice for American-made vehicles.

For industrial conveyor systems, 39578 Single Cones offer smooth operation and long service life, thanks to their steel cage and standard radial clearance. They’re easy to maintain, which reduces downtime in production lines.

Where Is 39578 Single Cones Used?
You’ll often find 39578 Single Cones in agricultural machinery, like tractors and harvesters, where their robust design handles rough terrain and heavy loads. The open seal type allows for easy lubrication in dusty conditions.

In railway applications, 39578 Single Cones are trusted for their ability to manage high radial and thrust loads in axle boxes. Their temperature range ensures performance in both hot and cold climates.

Built for Heavy-Duty Use: 39578 Single Cones
The 39578 Single Cones excel in forestry equipment, such as log skidders, where their tapered rollers distribute loads evenly. The steel cage adds strength, making them suitable for high-impact tasks.

In material handling systems, 39578 Single Cones provide consistent performance in forklifts and cranes. Their ABEC-1 rating ensures reliable precision for everyday industrial use.

Automotive vs Aerospace: Applications of 39578 Single Cones
In automotive settings, 39578 Single Cones are ideal for differentials and transmissions, offering smooth power transfer. Their inch measurements align with standard US automotive specs.

For aerospace ground support equipment, 39578 Single Cones handle heavy loads while maintaining precision. Their chrome steel rings resist wear, even with frequent use.

Q&A

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