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TS (Single Row Tapered Roller Bearings) (Imperial) 397-394AS

TS (Single Row Tapered Roller Bearings) (Imperial) 397-394AS

The 397-394AS is a single-row tapered roller bearing with a 2.36″ bore and 4.33″ 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 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 or automotive systems where combined loads are common.

Weighing 1.9 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a safe choice for most environments.

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Product Parameters

  • Part Number 397-394AS
  • Brand TFL
  • Interchangeable Timken
  • Size 2.3622" x 4.3307" x 0.8661"
  • Bore Dia 2.3622"
  • 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 0.03"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 2.68"
  • Cone Backface Backing Diameter 2.72"
  • Cup Frontface Backing Diameter 4.12"
  • Cup Backface Backing Diameter 3.90"
  • 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 397
  • Cup Part Number 394AS
  • 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 1.900 lb

Features

Performance Features of 397-394AS Bearing

397-394AS 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 various 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 diverse environments.

397-394AS Bearing requires lubrication, but its robust design minimises maintenance needs.
The standard radial clearance options provide flexibility for different installation requirements.

Application

Industrial Uses of 397-394AS Bearing
The 397-394AS Bearing is a solid choice for heavy machinery, especially in construction equipment where combined loads are common. Its tapered roller design handles both radial and thrust forces efficiently, making it reliable for long-term use.

In automotive applications, 397-394AS Bearing fits well in wheel hubs and differential systems, thanks to its chrome steel construction. The imperial sizing ensures compatibility with older or custom-built vehicles, particularly in the US market.

For industrial fans and pumps, 397-394AS Bearing’s open design simplifies lubrication and maintenance. The standard radial clearance option provides flexibility for various operating conditions without compromising performance.

Where Is 397-394AS Bearing Used?
You’ll often spot 397-394AS Bearing in agricultural machinery, like tractors and harvesters, where durability matters. Its steel cage and tapered rollers stand up to rough conditions and uneven loads without faltering.

In conveyor systems, 397-394AS Bearing keeps things moving smoothly, even under heavy loads. The ABEC-1 rating strikes a good balance between precision and cost-effectiveness for most industrial needs.

Built for Heavy-Duty Use: 397-394AS Bearing
This bearing shines in mining equipment, where dust and debris are constant challenges. The open seal type allows easy cleaning and re-greasing, extending its service life in tough environments.

For gearboxes and drivetrains, 397-394AS Bearing’s dynamic load capacity ensures consistent performance. The chrome steel rollers resist wear, making it a dependable choice for high-torque applications.

Automotive vs Aerospace: Applications of 397-394AS Bearing
In automotive settings, 397-394AS Bearing handles the demands of drivetrains and axles with ease. Its imperial measurements make it a straightforward replacement for many North American vehicle models.

While not typically used in aerospace, this bearing excels in ground support equipment. The temperature range and load ratings are well-suited for airport tugs and cargo loaders that operate in varying conditions.

Q&A

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