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

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

The 390A-393WE is a single-row tapered roller bearing with a 2.5″ bore and 4.59″ outer diameter, crafted from sturdy chrome steel. It handles combined loads, supporting up to 22200 lbf dynamically and 28100 lbf statically.

Its open design allows easy lubrication, while the steel cage ensures durability. The bearing operates smoothly in temperatures ranging from -30°C to 110°C.

This model is interchangeable with Timken bearings, making it a practical choice for replacements. Ideal for heavy-duty applications like axles or gearboxes where combined loads are common.

Weighing 2.8 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe use. The standard radial clearance ensures versatility in various setups.

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Product Parameters

  • Part Number 390A-393WE
  • Brand TFL
  • Interchangeable Timken
  • Size 2.5" x 4.59" x 1.3109"
  • Bore Dia 2.5"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 4.59"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 0.866"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 1.1859"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.3109"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.06"
  • Cup Backface ToClear Radius 0.03"
  • Cone Frontface Backing Diameter 2.76"
  • Cone Backface Backing Diameter 2.87"
  • Cup Frontface Backing Diameter 4.18"
  • Cup Backface Backing Diameter 4.09"
  • 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 390A
  • Cup Part Number 393WE
  • 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 2.8 lb

Features

Performance Features of 390A-393WE Bearing

390A-393WE Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 22,200 lbf, making it suitable for heavy-duty applications.
The steel cage ensures proper roller alignment, enhancing durability and reducing wear.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

How Does 390A-393WE Bearing Reduce Friction?

390A-393WE Bearing’s tapered roller design minimises friction, ensuring smooth operation under combined loads.
The chrome steel construction provides excellent wear resistance, extending its service life.
Proper lubrication further reduces friction, maintaining efficiency over time.
Its standard radial clearance allows for optimal performance in diverse applications.

Engineered for Precision: 390A-393WE Bearing

390A-393WE Bearing features precise dimensions, with bore and outer diameter tolerances ensuring accurate fit.
The single-row construction provides stability, making it ideal for precision tasks.
Its effective center location of -0.03″ enhances alignment, reducing operational stress.
The ABEC-1 rating confirms its reliable performance in various mechanical systems.

Steel vs Ceramic Bearings: Strengths of 390A-393WE Bearing

390A-393WE Bearing uses chrome steel for both rings and rollers, offering excellent strength and durability.
This material choice ensures high load capacity while maintaining cost-effectiveness.
The steel cage provides robust support, keeping rollers aligned during operation.
Compared to ceramic options, it delivers reliable performance at a more accessible price point.

Why Choose 390A-393WE Bearing for Precision Tasks?

390A-393WE Bearing’s precise tolerances and tapered roller design make it ideal for accurate applications.
The chrome steel construction maintains dimensional stability under various loads.
Its standard radial clearance allows for smooth rotation in precision machinery.
With a static radial load of 28,100 lbf, it handles demanding tasks with reliability.

Application

Industrial Uses of 390A-393WE Bearing
390A-393WE Bearing is commonly used in heavy machinery like construction equipment and agricultural gear, where its tapered roller design handles combined loads efficiently. The chrome steel construction ensures durability even in demanding environments.

Where Is 390A-393WE Bearing Used?
You’ll often find 390A-393WE Bearing in automotive axles and wheel hubs, thanks to its ability to manage both radial and thrust loads. Its inch sizing makes it a go-to for American-made vehicles and machinery.

Built for Heavy-Duty Use: 390A-393WE Bearing
390A-393WE Bearing excels in industrial fans and pumps, where its open design allows for easy lubrication and maintenance. The steel cage adds robustness, making it reliable for continuous operation.

Automotive vs Aerospace: Applications of 390A-393WE Bearing
In automotive systems, 390A-393WE Bearing supports high-load scenarios like differentials, while in aerospace, it’s suited for auxiliary gearboxes. Its temperature range ensures performance in varied conditions.

Practical Applications of 390A-393WE Bearing
390A-393WE Bearing is a solid choice for conveyor systems in mining, where its dynamic load capacity keeps things running smoothly. The standard radial clearance offers flexibility for different operational needs.

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