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TS (Single Row Tapered Roller Bearings) (Imperial) 390A-393AS

TS (Single Row Tapered Roller Bearings) (Imperial) 390A-393AS

The 390A-393AS is a single-row tapered roller bearing with a 2.5″ bore and 4.375″ 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 machinery like gearboxes or wheel hubs 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 industrial use.

The standard radial clearance and ABEC-1 rating ensure consistent performance. Its tapered roller design provides excellent load distribution, reducing wear over time.

Suitable for applications requiring precise alignment, such as automotive or construction equipment. The chrome steel construction offers good resistance to wear and fatigue.

Easy to maintain with regular lubrication, this bearing is built for long-term reliability. Its dimensions and tolerances make it a practical choice for imperial system applications.

The effective center location and clearances ensure smooth operation under load. A dependable option for heavy-duty machinery in various industries.

With its balanced design, it handles both radial and thrust loads efficiently. The steel cage keeps rollers in place, even at higher speeds.

Perfect for replacements or upgrades in existing systems. Its compatibility with Timken bearings adds to its versatility.

The tapered rollers provide stable performance under varying load conditions. A solid choice for engineers and maintenance teams alike.

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Product Parameters

  • Part Number 390A-393AS
  • Brand TFL
  • Interchangeable Timken
  • Size 2.5" x 4.375" x 0.8661"
  • Bore Dia 2.5"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 4.375"
  • 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 2.76"
  • Cone Backface Backing Diameter 2.87"
  • Cup Frontface Backing Diameter 4.15"
  • 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 393AS
  • 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 390A-393AS Bearing

390A-393AS Bearing is constructed with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 22,200 lbf, making it suitable for heavy-duty applications.
The steel cage ensures proper roller alignment, reducing friction and extending operational life.
With a temperature range of -30° to 110°C, it performs reliably in various environments.

How Is 390A-393AS Bearing Engineered for Reliability?

390A-393AS Bearing features a single-row tapered roller design, optimised for combined load handling.
The chrome steel construction provides durability, while the standard radial clearance ensures smooth operation.
It meets ABEC-1 precision standards, balancing performance and cost-effectiveness.
Lubrication is required to maintain its high dynamic thrust rating of 3,970 lbf.

Built for Durability: 390A-393AS Bearing

390A-393AS Bearing’s tapered roller design efficiently manages both radial and thrust loads.
Its chrome steel components resist wear, ensuring long service life even under heavy stress.
The steel cage maintains roller positioning, reducing noise and vibration.
With a static radial load capacity of 28,100 lbf, it delivers reliable performance in demanding conditions.

Application

Industrial Uses of 390A-393AS Bearing
390A-393AS 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 tough working conditions.

In automotive applications, 390A-393AS Bearing fits well in wheel hubs and differential systems, providing reliable performance under both radial and thrust loads. Its inch sizing makes it a good match for American-made vehicles.

For industrial conveyor systems, 390A-393AS Bearing’s open design allows for easy lubrication, extending its service life in high-use environments. The steel cage adds extra strength, making it suitable for continuous operation.

Where Is 390A-393AS Bearing Used?
You’ll often find 390A-393AS Bearing in mining equipment, where its robust design handles heavy loads and rough conditions. The tapered rollers distribute stress evenly, reducing wear over time.

In manufacturing plants, 390A-393AS Bearing supports machinery like presses and rollers, ensuring smooth operation under varying loads. Its standard radial clearance makes it versatile for different setups.

Built for Heavy-Duty Use: 390A-393AS Bearing
390A-393AS Bearing excels in applications like forklifts and cranes, where its combined load capacity is crucial. The chrome steel rollers and rings provide long-lasting performance.

For railway applications, 390A-393AS Bearing’s durability and temperature resistance make it a reliable choice for axle boxes. Its ABEC-1 rating ensures consistent precision even under stress.

Automotive vs Aerospace: Applications of 390A-393AS Bearing
In automotive systems, 390A-393AS Bearing is ideal for transmissions and drivetrains, offering smooth performance under heavy loads. The inch measurements align well with standard vehicle designs.

For aerospace ground equipment, 390A-393AS Bearing provides reliable support in maintenance tools and loading systems. Its temperature range ensures stability in varying weather conditions.

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