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TS (Single Row Tapered Roller Bearings) (Imperial) 39578-39520P

TS (Single Row Tapered Roller Bearings) (Imperial) 39578-39520P

The 39578-39520P is a single-row tapered roller bearing with a 2.125″ bore and 4.4375″ 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 under heavy use. The bearing operates smoothly in temperatures ranging from -30°C to 110°C.

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

Weighing 3.2 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe and eco-friendly use.

The standard radial clearance and ABEC-1 rating make it suitable for general precision needs. Its tapered roller design ensures efficient load distribution and long service life.

Perfect for applications requiring consistent performance under radial and thrust loads, such as gearboxes or wheel hubs. The chrome steel construction provides excellent wear resistance.

Maintenance is straightforward thanks to its open seal type, allowing for regular lubrication. The bearing’s dimensions and tolerances ensure a precise fit in most standard setups.

A dependable choice for engineers and maintenance teams looking for a balance of strength and ease of use. Its compatibility with Timken parts adds to its practicality.

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Product Parameters

  • Part Number 39578-39520P
  • Brand TFL
  • Interchangeable Timken
  • Size 2.125" x 4.4375" x 1.1876"
  • Bore Dia 2.125"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 4.4375"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 1.1875"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.9375"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.1876"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.14"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 2.52"
  • Cone Backface Backing Diameter 2.76"
  • Cup Frontface Backing Diameter 4.25"
  • Cup Backface Backing Diameter 3.98"
  • 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 39520P
  • 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 3.2 lb

Features

Performance Features of 39578-39520P Bearing

39578-39520P Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 37,500 lbf, making it suitable for heavy-duty applications.

The tapered roller design ensures smooth operation and efficient load distribution.
With a standard radial clearance, it provides reliable performance in various conditions.

39578-39520P Bearing operates within a temperature range of -30° to 110°C, ensuring versatility.
The steel cage maintains roller alignment, reducing wear and extending service life.

Application

Industrial Uses of 39578-39520P Bearing
The 39578-39520P Bearing is commonly used in heavy machinery like construction equipment and agricultural gear, where its tapered roller design handles combined loads efficiently. Its chrome steel construction ensures durability in tough working conditions.

What Makes 39578-39520P Bearing a Preferred Choice?
In automotive applications, 39578-39520P Bearing fits well in wheel hubs and differential systems, thanks to its precise inch sizing and compatibility with Timken designs. The open seal type simplifies lubrication and maintenance.

Built for Heavy-Duty Use: 39578-39520P Bearing
For industrial conveyors and mining equipment, 39578-39520P Bearing offers reliable performance under high radial and thrust loads. The steel cage adds strength, making it suitable for continuous operation.

Automotive vs Aerospace: Applications of 39578-39520P Bearing
While 39578-39520P Bearing excels in truck axles and off-road vehicles, its precision also suits aerospace landing gear components. The ABEC-1 rating ensures consistent performance in both fields.

Perfect Fit for Automation: 39578-39520P Bearing
In automated production lines, 39578-39520P Bearing supports robotic arms and assembly systems with smooth motion. Its standard radial clearance adapts well to varying operational demands.

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