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

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

The 386A-383A is a single-row tapered roller bearing with a 1.875″ bore and 3.937″ outer diameter, crafted from durable 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 reliable performance. The bearing operates smoothly in temperatures from -30°C to 110°C, suitable for demanding environments.

This model is interchangeable with Timken bearings, offering a practical replacement option. Ideal for use in gearboxes, axles, or industrial machinery where combined loads are common.

Weighing 1.8 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, ensuring safe and eco-friendly use.

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Product Parameters

  • Part Number 386A-383A
  • Brand TFL
  • Interchangeable Timken
  • Size 1.875" x 3.937" x 0.8269"
  • 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 0.7018"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 0.8269"
  • 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 3.68"
  • 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 386A
  • Cup Part Number 383A
  • 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-383A Bearing Engineered for Reliability?

386A-383A Bearing features chrome steel rings and rollers, providing strong resistance to combined loads.
Its dynamic radial load capacity reaches 24,200 lbf, ensuring dependable performance in tough conditions.
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.

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

386A-383A Bearing is built to withstand temperatures from -30° to 110°C without losing performance.
The chrome steel construction ensures durability and resistance to thermal expansion.
Its open design allows for easy lubrication, maintaining smooth operation under heat.
This makes it ideal for applications where temperature fluctuations are common.

Designed for Durability: 386A-383A Bearing

386A-383A Bearing’s single-row tapered roller design handles both radial and thrust loads efficiently.
The chrome steel components resist wear, ensuring a long service life.
Its standard radial clearance options provide flexibility for different applications.
With a weight of 1.8 lb, it balances strength and practicality.

Steel vs Ceramic Bearings: Strengths of 386A-383A Bearing

386A-383A Bearing uses chrome steel for both rings and rollers, offering excellent strength and affordability.
The steel cage ensures reliable roller positioning, reducing maintenance needs.
Its dynamic radial rating of 6,280 lbf (C90) highlights its efficiency.
This makes it a cost-effective choice for heavy-duty industrial use.

Performance Features of 386A-383A Bearing

386A-383A Bearing combines high dynamic radial and thrust ratings for versatile performance.
The tapered roller design ensures even load distribution, minimising stress points.
Its ABEC-1 rating guarantees consistent precision in operation.
The standard radial clearance allows for easy integration into various systems.

Application

Industrial Uses of 386A-383A Bearing
386A-383A 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 in tough working conditions.

Where Is 386A-383A Bearing Used?
You’ll often find 386A-383A Bearing in automotive applications like truck wheel hubs, where its ability to manage radial and thrust loads is essential. The inch sizing makes it a good fit for American-made vehicles.

Built for Heavy-Duty Use: 386A-383A Bearing
386A-383A Bearing excels in industrial settings like conveyor systems, thanks to its robust steel cage and high dynamic load capacity. Its open design simplifies lubrication and maintenance.

Automotive vs Aerospace: Applications of 386A-383A Bearing
In automotive systems, 386A-383A Bearing supports wheel assemblies, while in aerospace, it’s used in auxiliary gearboxes. The tapered rollers provide stability under varying load conditions.

Key Fields for 386A-383A Bearing
386A-383A Bearing is ideal for mining equipment, where its high static radial load rating ensures reliability. The standard radial clearance allows for smooth operation in dusty environments.

Q&A

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