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

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

The 399AS-394XS is a single-row tapered roller bearing with a 2.6875″ bore and 4.3301″ outer diameter, crafted from sturdy chrome steel. It manages combined loads up to 22200 lbf radially and 3970 lbf in thrust, suitable for demanding applications.

Its open design allows for easy lubrication, while the steel cage ensures durability under stress. 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 machinery or automotive systems where combined loads are common.

Weighing 1.7 lb, it offers a balance of strength and manageability. Compliant with RoHS and REACH standards for safe and reliable use.

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Product Parameters

  • Part Number 399AS-394XS
  • Brand TFL
  • Interchangeable Timken
  • Size 2.6875" x 4.3301" x 0.935"
  • Bore Dia 2.6875"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 4.3301"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 0.866"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.748"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 0.935"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.2"
  • Cup Backface ToClear Radius 0.02"
  • Cone Frontface Backing Diameter 3.54"
  • Cone Backface Backing Diameter 3.27"
  • Cup Frontface Backing Diameter 4.11"
  • 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 394XS
  • 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 1.7 lb

Features

Performance Features of 399AS-394XS Bearing

399AS-394XS Bearing is built 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 heavy-duty applications.
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 environmental conditions.

How Is 399AS-394XS Bearing Engineered for Reliability?

399AS-394XS Bearing features a single-row tapered roller design, ideal for handling both radial and thrust loads.
The chrome steel construction provides durability, while the standard radial clearance ensures smooth operation.
Its effective center location of -0.03″ enhances stability under load.
Lubrication is required to maintain optimal performance over time.

Built for Durability: 399AS-394XS Bearing

399AS-394XS Bearing’s tapered roller design distributes loads evenly, reducing wear and tear.
The steel cage and chrome steel rollers work together to minimise friction and noise.
With a static radial load capacity of 28,100 lbf, it handles demanding applications with ease.
Its ABEC-1 rating ensures consistent precision in performance.

Steel vs Ceramic Bearings: Strengths of 399AS-394XS Bearing

399AS-394XS Bearing uses chrome steel for both rollers and rings, providing excellent strength and durability.
The steel cage ensures reliable roller alignment, even under heavy combined loads.
Its dynamic thrust rating of 3,970 lbf makes it suitable for applications requiring both radial and axial support.
The standard radial clearance option allows for flexibility in various operating conditions.

Application

Industrial Uses of 399AS-394XS Bearing
399AS-394XS 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.

What Makes 399AS-394XS Bearing a Preferred Choice?
In automotive applications, 399AS-394XS Bearing fits well in wheel hubs and differential systems, thanks to its precise imperial sizing. Its open design allows for easy lubrication, extending service life.

Built for Heavy-Duty Use: 399AS-394XS Bearing
For industrial fans and pumps, 399AS-394XS Bearing offers reliable performance with its standard radial clearance. The steel cage provides added strength, making it suitable for continuous operation.

Automotive vs Aerospace: Applications of 399AS-394XS Bearing
In automotive systems, 399AS-394XS Bearing supports high radial loads in transmissions. While in aerospace, its temperature range makes it useful for auxiliary equipment.

Where Is 399AS-394XS Bearing Used?
You’ll find 399AS-394XS Bearing in conveyor systems and material handling equipment, where its dynamic load capacity shines. The ABEC-1 rating ensures consistent performance for general industrial needs.

Q&A

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