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TS (Single Row Tapered Roller Bearings) (Imperial) 399AS-394ARB

TS (Single Row Tapered Roller Bearings) (Imperial) 399AS-394ARB

The 399AS-394ARB is a single-row tapered roller bearing with a 2.6875″ bore and 4.3307″ outer diameter, crafted from robust 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 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, gearboxes, or automotive systems where combined loads are common.

Weighing 1.6 lb, it’s sturdy yet manageable for its size. Compliant with RoHS and REACH standards, it’s a safe choice for diverse environments.

The 399AS-394ARB features standard radial clearance, with options for C3, C4, or C5 available. Its tapered roller design ensures efficient load distribution and long service life.

With an ABEC-1 rating, it balances precision and affordability. The effective center location of -0.03″ helps maintain alignment in dynamic setups.

Perfect for applications requiring consistent performance under radial and thrust loads. Its simple maintenance and robust construction make it a practical choice for engineers and maintenance teams alike.

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Product Parameters

  • Part Number 399AS-394ARB
  • Brand TFL
  • Interchangeable Timken
  • Size 2.6875" x 4.3307" x 0.8661"
  • Bore Dia 2.6875"
  • 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 0.2"
  • Cup Backface ToClear Radius 0.050"
  • Cone Frontface Backing Diameter 3.54"
  • Cone Backface Backing Diameter 3.27"
  • 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 399AS
  • 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 1.6 lb

Features

Performance Features of 399AS-394ARB Bearing

399AS-394ARB Bearing is constructed with chrome steel rings and rollers, offering strong resistance to combined 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 service life.
With a temperature range of -30° to 110°C, it performs well in various environments.

399AS-394ARB Bearing requires lubrication for optimal operation, enhancing its durability.
Its standard radial clearance options provide flexibility for different applications.

The tapered roller design ensures smooth operation under both radial and thrust loads.
Weighing just 1.6 lb, it combines strength with manageable size for easy handling.

Application

Industrial Uses of 399AS-394ARB Bearing
The 399AS-394ARB Bearing is commonly used in heavy machinery, such as construction equipment and agricultural gear, where its tapered roller design handles combined loads effectively. Its chrome steel construction ensures durability in tough working conditions.

Where Is 399AS-394ARB Bearing Used?
You’ll often find 399AS-394ARB Bearing in automotive applications like truck wheel hubs, where its high dynamic radial load capacity keeps things running smoothly. The inch sizing makes it a good fit for many North American vehicles.

Built for Heavy-Duty Use: 399AS-394ARB Bearing
This bearing works well in industrial gearboxes, thanks to its ability to manage both radial and thrust loads. The open design allows for easy lubrication, extending its service life in demanding environments.

Automotive vs Industrial: Applications of 399AS-394ARB Bearing
In automotive settings, 399AS-394ARB Bearing supports wheel hubs and transmissions, while in industrial settings, it’s ideal for conveyor systems and heavy-duty pumps. Its versatility makes it a reliable choice across sectors.

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