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

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

The 386A-383 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 24200 lbf radially and 3810 lbf thrust, making it versatile for various 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, offering a reliable replacement option. Ideal for heavy-duty machinery or automotive systems where combined loads are common.

Weighing 1.8 lb, it balances strength and manageability. Compliant with RoHS and REACH standards for safe and eco-friendly use.

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Product Parameters

  • Part Number 386A-383
  • Brand TFL
  • Interchangeable Timken
  • Size 1.875" x 3.937" x 0.8268"
  • 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 0.8268"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 0.8268"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.03"
  • Cup Backface ToClear Radius 0.08"
  • Cone Frontface Backing Diameter 2.17"
  • Cone Backface Backing Diameter 2.2"
  • Cup Frontface Backing Diameter 3.70"
  • 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 386A
  • Cup Part Number 383
  • 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 24200 lbf
  • Static Radial Load 24100 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 6280 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 3810 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 1.8 lb

Features

How Is 386A-383 Bearing Engineered for Reliability?

386A-383 Bearing features chrome steel rings and rollers, ensuring durability under combined loads.
Its dynamic radial load capacity reaches 24,200 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.

What Makes 386A-383 Bearing Suitable for High-Temperature Applications?

386A-383 Bearing operates efficiently in temperatures from -30° to 110°C, maintaining performance in demanding environments.
The chrome steel construction resists wear, ensuring long-term reliability.
Its dynamic radial load rating of 24,200 lbf supports heavy loads without compromising efficiency.
The standard radial clearance allows for smooth operation under varying thermal conditions.

Designed for Durability: 386A-383 Bearing

386A-383 Bearing is built with chrome steel components, offering excellent resistance to wear and tear.
Its dynamic thrust rating of 3,810 lbf ensures reliable performance under combined loads.
The steel cage design keeps rollers in place, minimising friction and noise.
With a weight of 1.8 lb, it balances strength and ease of handling.

Application

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

In automotive applications, 386A-383 Bearing fits well in wheel hubs and differential systems, providing reliable performance under radial and thrust loads. Its inch sizing makes it compatible with many North American vehicle models.

For industrial conveyor systems, 386A-383 Bearing’s open design allows for easy lubrication, extending service life in high-load scenarios. The steel cage adds extra strength to withstand continuous operation.

Where Is 386A-383 Bearing Used?
386A-383 Bearing is often found in agricultural machinery, supporting components like gearboxes and PTO shafts. Its tapered rollers manage both radial and axial forces efficiently.

The bearing’s standard radial clearance makes it suitable for general machinery where moderate precision is needed. Its ABEC-1 rating ensures consistent performance without over-engineering.

Built for Heavy-Duty Use: 386A-383 Bearing
386A-383 Bearing excels in mining equipment, where its robust design handles extreme loads and harsh conditions. The chrome steel rollers resist wear even in abrasive environments.

Regular lubrication ensures smooth operation in high-temperature settings, making it a reliable choice for industrial fans and pumps. The steel cage further enhances its longevity.

Automotive vs Aerospace: Applications of 386A-383 Bearing
In automotive systems, 386A-383 Bearing supports wheel assemblies, offering a balance of strength and precision. Its inch measurements align with many truck and off-road vehicle specs.

For aerospace ground equipment, the bearing’s dynamic load capacity makes it useful in landing gear test rigs. However, its ABEC-1 rating limits its use in high-precision flight components.

Q&A

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