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

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

The 386AX-383X is a single-row tapered roller bearing with a 1.875″ bore and 3.937″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 20500 lbf radially and 3210 lbf thrust, suitable for demanding applications.

Its open design allows easy lubrication, while the steel cage ensures durability. 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 use in heavy machinery or automotive systems where combined loads are common.

Weighing just 2lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe and reliable performance.

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Product Parameters

  • Part Number 386AX-383X
  • Brand TFL
  • Interchangeable Timken
  • Size 1.875" x 3.937" x 1.0001"
  • Bore Dia 1.875"
  • 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 0.03"
  • Cup Backface ToClear Radius 0.050"
  • Cone Frontface Backing Diameter 2.32"
  • Cone Backface Backing Diameter 2.2"
  • 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 386AX
  • 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 2 lb

Features

How Is 386AX-383X Bearing Engineered for Reliability?

386AX-383X Bearing features chrome steel rings and rollers, ensuring strength and durability under 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 environments.

Application

Industrial Uses of 386AX-383X Bearing
386AX-383X Bearing is commonly used in heavy machinery, such as construction equipment and agricultural gear, where its tapered roller design handles combined loads effectively. The chrome steel construction ensures durability even in tough working conditions.

Where Is 386AX-383X Bearing Used?
You’ll often find 386AX-383X Bearing in automotive applications like wheel hubs and differentials, thanks to its ability to manage both radial and thrust loads. Its imperial sizing makes it a good fit for North American vehicle models.

Built for Heavy-Duty Use: 386AX-383X Bearing
386AX-383X Bearing is ideal for industrial fans and pumps, where its open design allows for easy lubrication and maintenance. The steel cage adds extra strength, making it reliable for continuous operation.

Automotive vs Aerospace: Applications of 386AX-383X Bearing
In automotive systems, 386AX-383X Bearing supports high-load components like axles, while in aerospace, it’s used in landing gear for its precision and durability. The temperature range suits both environments well.

Key Fields for 386AX-383X Bearing
386AX-383X Bearing is a solid choice for conveyor systems in mining, where its robust design handles heavy materials smoothly. The standard radial clearance ensures consistent performance over time.

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