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TS (Single Row Tapered Roller Bearings) (Imperial) 39578-39528

TS (Single Row Tapered Roller Bearings) (Imperial) 39578-39528

The 39578-39528 is a single-row tapered roller bearing with a 2.125″ bore and 4.7238″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 37500 lbf radially and 5650 lbf thrust, making it versatile for various 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, suitable for demanding environments.

This model is interchangeable with Timken bearings, offering a reliable replacement option. Ideal for heavy-duty machinery or automotive systems where combined loads are common.

Weighing 3.9 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it meets safety and environmental requirements.

The 39578-39528 features standard radial clearance, with options for C3, C4, or C5 available. Its ABEC-1 rating ensures consistent performance for general industrial use.

The tapered roller design provides effective load distribution, reducing wear over time. The precise tolerances on bore and outer diameters ensure a secure fit in most applications.

Maintenance is straightforward thanks to the open seal type. The bearing’s construction makes it suitable for moderate-speed operations in harsh conditions.

Common uses include wheel hubs, gearboxes, and conveyor systems. Its durability and load capacity make it a practical choice for long-term installations.

With an effective center location of -0.26″, this bearing offers stable performance under combined loads. The chrome steel rollers and rings provide excellent wear resistance.

The cage clearances are designed to minimise friction while maintaining roller alignment. This helps extend the bearing’s service life in continuous operation.

Available with standard cups, it’s compatible with many existing systems. The 39500 series design ensures reliable performance in industrial settings.

For applications requiring frequent starts and stops, this bearing maintains consistent operation. Its weight-to-capacity ratio makes it efficient for space-constrained installations.

The bearing’s dimensions (2.125″ x 4.7238″ x 1.2895″) make it suitable for medium-duty applications. The chrome steel construction resists corrosion in typical operating environments.

Dynamic radial rating of 9730 lbf at 90 million revolutions demonstrates its longevity. The thrust capacity complements its radial load performance for versatile use.

Standard lubrication requirements make maintenance predictable. The temperature range accommodates most industrial conditions without special considerations.

Ideal for replacement in existing systems or new designs requiring proven tapered roller technology. Its interchangeability simplifies inventory management for maintenance teams.

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Product Parameters

  • Part Number 39578-39528
  • Brand TFL
  • Interchangeable Timken
  • Size 2.125" x 4.7238" x 1.2895"
  • Bore Dia 2.125"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 4.7238"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 1.1875"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 1.061"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.2895"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.14"
  • Cup Backface ToClear Radius 0.03"
  • Cone Frontface Backing Diameter 2.52"
  • Cone Backface Backing Diameter 2.76"
  • Cup Frontface Backing Diameter 4.35"
  • Cup Backface Backing Diameter 4.21"
  • Cage Cone Frontface Clearance 0.13"
  • Cage Cone Backface Clearance 0.05"
  • Effective Center Location -0.26"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 39578
  • Cup Part Number 39528
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 39500
  • Ring Material Chrome Steel
  • Roller 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 Thrust Rating(90 Million Revolutions)(Ca90) 5650 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 3.9 lb

Features

Performance Features of 39578-39528 Bearing

39578-39528 Bearing is crafted with chrome steel rings and rollers, offering robust performance under combined loads.
Its dynamic radial load capacity reaches 37,500 lbf, making it suitable for heavy-duty applications.

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

39578-39528 Bearing’s standard radial clearance allows for flexibility in different operational conditions.
Its ABEC-1 rating ensures consistent precision for industrial use.

Application

Industrial Uses of 39578-39528 Bearing
39578-39528 Bearing is commonly used in heavy machinery, such as construction equipment and mining tools, where its tapered roller design handles combined loads effectively. The chrome steel construction ensures durability in tough working conditions.

In automotive applications, 39578-39528 Bearing fits well in wheel hubs and differential systems, providing reliable performance under varying loads. Its imperial sizing makes it a suitable choice for American and British vehicle models.

For industrial conveyor systems, 39578-39528 Bearing offers smooth operation and easy maintenance due to its open design. The steel cage adds extra strength, making it ideal for high-load scenarios.

Where Is 39578-39528 Bearing Used?
You’ll often find 39578-39528 Bearing in agricultural machinery, like tractors and harvesters, where its robust design handles rough terrain. The tapered rollers distribute loads evenly, reducing wear.

In manufacturing plants, 39578-39528 Bearing supports rotating equipment like gearboxes and pulleys. Its standard radial clearance ensures consistent performance without frequent adjustments.

Built for Heavy-Duty Use: 39578-39528 Bearing
39578-39528 Bearing excels in forestry equipment, such as log splitters and sawmills, thanks to its high static radial load capacity. The chrome steel rollers resist deformation under pressure.

For railway applications, 39578-39528 Bearing is used in axle boxes, where its combined load capability ensures smooth train movement. The ABEC-1 rating provides adequate precision for most rail systems.

Automotive vs Aerospace: Applications of 39578-39528 Bearing
In automotive systems, 39578-39528 Bearing is ideal for drivetrain components, offering a balance of strength and affordability. Its imperial measurements align with standard automotive designs.

For aerospace ground support equipment, 39578-39528 Bearing provides reliable performance in load-handling devices. However, its ABEC-1 rating makes it less suited for high-precision flight systems.

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