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TS (Single Row Tapered Roller Bearings) (Imperial) 390A-394ARB

TS (Single Row Tapered Roller Bearings) (Imperial) 390A-394ARB

The 390A-394ARB is a single-row tapered roller bearing with a 2.5″ bore and 4.3307″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 22200 lbf radially and 3970 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, automotive systems, or industrial equipment where combined loads are present.

Weighing 1.8 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it meets safety and environmental requirements.

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Product Parameters

  • Part Number 390A-394ARB
  • Brand TFL
  • Interchangeable Timken
  • Size 2.5" x 4.3307" x 0.8661"
  • Bore Dia 2.5"
  • 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 0.7411"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 0.8661"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.06"
  • Cup Backface ToClear Radius 0.050"
  • Cone Frontface Backing Diameter 3.39"
  • Cone Backface Backing Diameter 2.87"
  • Cup Frontface Backing Diameter 4.12"
  • Cup Backface Backing Diameter 3.98"
  • 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 394ARB
  • 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 1.8 lb

Features

How Does 390A-394ARB Bearing Handle Combined Loads?

390A-394ARB Bearing is built with chrome steel rings and rollers, offering strong resistance to both radial and thrust loads.
Its dynamic radial load capacity reaches 22,200 lbf, ensuring reliable performance in demanding conditions.
The steel cage maintains roller alignment, reducing friction and extending operational life.
With a temperature range of -30° to 110°C, it performs well in various environments.

What Makes 390A-394ARB Bearing Suitable for Heavy-Duty Applications?

390A-394ARB Bearing features a single-row tapered roller design, ideal for handling combined loads efficiently.
The chrome steel construction provides durability, while the standard radial clearance allows for smooth operation.
Its dynamic thrust rating of 3,970 lbf ensures stability under heavy loads.
The bearing’s ABEC-1 rating guarantees consistent precision in industrial applications.

Engineered for Reliability: 390A-394ARB Bearing

390A-394ARB Bearing’s tapered roller design ensures even load distribution, reducing wear over time.
The chrome steel materials resist wear and corrosion, enhancing longevity in tough conditions.
With a static radial load capacity of 28,100 lbf, it excels in high-stress environments.
The open seal type allows for easy lubrication, maintaining optimal performance.

Application

Industrial Uses of 390A-394ARB Bearing
390A-394ARB Bearing is commonly used in heavy machinery like construction equipment and agricultural gear, where its tapered roller design handles combined loads effectively. The chrome steel construction ensures durability in tough working conditions.

Where Is 390A-394ARB Bearing Used?
You’ll often find 390A-394ARB Bearing in automotive axles and wheel hubs, thanks to its ability to manage both radial and thrust loads. Its inch sizing makes it a good fit for American-made vehicles.

Built for Heavy-Duty Use: 390A-394ARB Bearing
390A-394ARB Bearing excels in industrial fans and pumps, where its open design allows for easy lubrication. The steel cage adds extra strength, making it reliable for continuous operation.

Automotive vs Aerospace: Applications of 390A-394ARB Bearing
In automotive settings, 390A-394ARB Bearing supports drivetrain components, while in aerospace, it’s used in auxiliary systems. Its ABEC-1 rating ensures consistent performance across different environments.

Perfect Fit for Automation: 390A-394ARB Bearing
390A-394ARB Bearing works well in conveyor systems and robotic arms, where precision and load capacity matter. The standard radial clearance option makes it versatile for various automation needs.

Q&A

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