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TS (Single Row Tapered Roller Bearings) (Imperial) 398-394XS

TS (Single Row Tapered Roller Bearings) (Imperial) 398-394XS

The 398-394XS is a single-row tapered roller bearing with a 2″ bore and 4.3301″ outer diameter, crafted from durable 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 reliable performance under heavy loads. The bearing operates smoothly in temperatures ranging from -30°C to 110°C.

This model is interchangeable with Timken bearings, offering a practical replacement option. Ideal for use in industrial machinery or automotive systems where combined loads are common.

Weighing 2.3 lb, it’s sturdy yet manageable for its size. Compliant with RoHS and REACH standards for safe and environmentally friendly use.

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Product Parameters

  • Part Number 398-394XS
  • Brand TFL
  • Interchangeable Timken
  • Size 2" x 4.3301" x 0.935"
  • Bore Dia 2"
  • 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 0.03"
  • Cup Backface ToClear Radius 0.02"
  • Cone Frontface Backing Diameter 2.4"
  • Cone Backface Backing Diameter 2.44"
  • 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 398
  • 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 2.3 lb

Features

What Makes 398-394XS Bearing Suitable for Heavy-Duty Applications?

398-394XS 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 tough conditions.

The steel cage maintains proper roller alignment, reducing friction and extending operational life.
With a temperature range of -30° to 110°C, it performs well in various environments.

398-394XS Bearing’s standard radial clearance allows for flexibility in different applications.
Its ABEC-1 rating ensures consistent precision for industrial uses.

Application

Industrial Uses of 398-394XS Bearing
The 398-394XS Bearing is commonly used in heavy machinery, such as construction equipment and agricultural gear, where its tapered roller design handles combined loads efficiently. Its chrome steel construction ensures durability in tough working conditions.

In automotive applications, 398-394XS Bearing fits well in wheel hubs and differential systems, providing reliable performance under radial and thrust loads. The inch sizing makes it a straightforward replacement for Timken equivalents in many vehicles.

For industrial fans and pumps, 398-394XS Bearing’s open design simplifies lubrication and maintenance, extending service life. The steel cage adds stability, making it suitable for high-speed operations.

Where Is 398-394XS Bearing Used?
You’ll often find 398-394XS Bearing in conveyor systems, where its ability to manage heavy radial loads keeps things running smoothly. The standard radial clearance offers flexibility for various setups.

In power transmission units, 398-394XS Bearing’s tapered rollers reduce friction, improving efficiency. Its ABEC-1 rating ensures consistent performance without overcomplicating precision requirements.

Built for Heavy-Duty Use: 398-394XS Bearing
398-394XS Bearing excels in mining equipment, where its robust design withstands extreme loads and harsh environments. The chrome steel rollers resist wear, even under constant stress.

For forestry machinery, 398-394XS Bearing’s combined load capacity makes it ideal for handling uneven forces. The inch measurements ensure compatibility with older equipment still in service.

Automotive vs Aerospace: Applications of 398-394XS Bearing
In automotive settings, 398-394XS Bearing supports drivetrain components, offering a balance of strength and ease of maintenance. Its temperature range suits both everyday and high-performance use.

While less common in aerospace, 398-394XS Bearing can be found in ground support equipment, where its reliability and standard sizing simplify logistics. The steel cage ensures stability during prolonged use.

Q&A

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