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TS (Single Row Tapered Roller Bearings) (Imperial) 386-383X

TS (Single Row Tapered Roller Bearings) (Imperial) 386-383X

The 386-383X is a single-row tapered roller bearing with a 2.184″ bore and 3.937″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 20500 lbf radially and 3210 lbf thrust, making it versatile for various applications.

Its open design allows 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 1.7 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it meets environmental and safety requirements.

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Product Parameters

  • Part Number 386-383X
  • Brand TFL
  • Interchangeable Timken
  • Size 2.184" x 3.937" x 1.0001"
  • Bore Dia 2.184"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.937"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 0.864"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.875"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.0001"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.09"
  • Cup Backface ToClear Radius 0.050"
  • Cone Frontface Backing Diameter 2.4"
  • Cone Backface Backing Diameter 2.56"
  • Cup Frontface Backing Diameter 3.68"
  • Cup Backface Backing Diameter 3.50"
  • Cage Cone Frontface Clearance 0.11"
  • Cage Cone Backface Clearance 0.03"
  • Effective Center Location -0.12"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 386
  • Cup Part Number 383X
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 385
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 20500 lbf
  • Static Radial Load 24100 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 5300 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 3210 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

How Is 386-383X Bearing Engineered for Reliability?

386-383X Bearing features chrome steel rings and rollers, ensuring strong resistance to combined loads.
Its dynamic radial load capacity reaches 20,500 lbf, making it suitable for 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 reliably in various conditions.

386-383X Bearing’s standard radial clearance offers flexibility for different installation needs.
Its ABEC-1 rating ensures consistent precision and smooth operation.

Application

Industrial Uses of 386-383X Bearing
The 386-383X Bearing is commonly used in heavy machinery like construction equipment, where its tapered roller design handles combined loads effectively. Its chrome steel construction ensures durability in demanding environments.

In automotive applications, 386-383X Bearing fits well in wheel hubs and differential systems, providing reliable performance under radial and thrust loads. The inch sizing makes it a good match for American-made vehicles.

For industrial fans and pumps, 386-383X Bearing’s open design allows for easy lubrication, extending service life in continuous operation. The steel cage adds stability during high-speed rotations.

Where Is 386-383X Bearing Used?
You’ll often find 386-383X Bearing in agricultural machinery, such as tractors and harvesters, where its robust design handles rough conditions. The standard radial clearance ensures smooth operation even with varying loads.

In conveyor systems, 386-383X Bearing supports heavy rollers, thanks to its high dynamic radial load capacity. The ABEC-1 rating provides sufficient precision for most industrial needs.

Built for Heavy-Duty Use: 386-383X Bearing
The 386-383X Bearing excels in mining equipment, where its tapered rollers manage extreme loads and vibrations. Its temperature range of -30° to 110°C suits both hot and cold environments.

For gearboxes, 386-383X Bearing’s combined load capability ensures efficient power transmission. The steel cage and chrome steel rollers reduce wear over time, even in high-stress conditions.

Automotive vs Aerospace: Applications of 386-383X Bearing
In automotive settings, 386-383X Bearing is ideal for axles and transmissions, balancing radial and thrust loads. Its inch measurements align with many US and UK vehicle standards.

For aerospace ground equipment, 386-383X Bearing handles heavy loads in tow tractors and cargo loaders. The open design simplifies maintenance, crucial for equipment with frequent use.

Q&A

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