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TS (Single Row Tapered Roller Bearings) (Imperial) 390-393

TS (Single Row Tapered Roller Bearings) (Imperial) 390-393

The 390-393 is a single row tapered roller bearing with a 2.25″ bore and 4.3307″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 22200 lbf radially and 3970 lbf in 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 2.4 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 ensure consistent performance. Perfect for setups requiring dependable load handling and easy maintenance.

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Product Parameters

  • Part Number 390-393
  • Brand TFL
  • Interchangeable Timken
  • Size 2.25" x 4.3307" x 1.063"
  • Bore Dia 2.25"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 4.3307"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 0.866"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 1.063"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.063"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.09"
  • Cup Backface ToClear Radius 0.03"
  • Cone Frontface Backing Diameter 2.6"
  • Cone Backface Backing Diameter 2.76"
  • Cup Frontface Backing Diameter 4.21"
  • Cup Backface Backing Diameter 3.94"
  • Cage Cone Frontface Clearance 0.11"
  • Cage Cone Backface Clearance 0.05"
  • Effective Center Location -0.03"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 390
  • Cup Part Number 393
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 395
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 22200 lbf
  • Static Radial Load 28100 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 5760 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 3970 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 2.4 lb

Features

Why Choose 390-393 Bearing for Precision Tasks?

390-393 Bearing features a single row tapered roller design, ideal for handling combined radial and thrust loads.
Its chrome steel construction ensures durability, with a dynamic radial load capacity of 22,200 lbf.

The precision-engineered cage maintains proper roller alignment, reducing friction and wear.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

390-393 Bearing’s standard radial clearance and ABEC-1 rating make it suitable for precision applications.
Its interchangeable design with Timken bearings offers flexibility and ease of replacement.

Application

Common Applications of 390-393 Bearing
The 390-393 Bearing is widely used in industrial equipment like heavy-duty gearboxes and conveyor systems, where its tapered roller design handles combined loads efficiently. Its chrome steel construction ensures durability in demanding environments.

In automotive applications, 390-393 Bearing fits well in truck wheel hubs and axle systems, providing reliable performance under radial and thrust loads. The inch sizing makes it compatible with many North American vehicle models.

For agricultural machinery, 390-393 Bearing’s robust design supports equipment like tractors and harvesters, where it withstands high loads and harsh conditions. The steel cage adds extra strength for long-term use.

Where Is 390-393 Bearing Used?
You’ll often find 390-393 Bearing in construction equipment, such as bulldozers and cranes, where its ability to handle heavy loads is essential. The open seal design allows for easy lubrication in dusty environments.

In mining operations, 390-393 Bearing works well in crushers and screens, thanks to its high dynamic load capacity. The standard radial clearance ensures smooth operation even under intense vibrations.

Built for Heavy-Duty Use: 390-393 Bearing
390-393 Bearing is a go-to choice for forestry machinery like log splitters and sawmills, where its tapered rollers manage uneven loads effectively. The chrome steel rollers resist wear over time.

In material handling systems, 390-393 Bearing supports pulley assemblies and lifting mechanisms. Its ABEC-1 rating balances precision and cost-effectiveness for general industrial use.

Automotive vs Industrial: Applications of 390-393 Bearing
In automotive settings, 390-393 Bearing excels in drivetrain components, offering smooth performance under varying loads. Its inch measurements align with many classic car restorations.

For industrial machinery, 390-393 Bearing is trusted in pumps and compressors, where its static radial load capacity ensures stability. The steel cage provides reliable support in high-speed scenarios.

Q&A

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