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

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

The 386A-383X 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 for easy lubrication, while the steel cage ensures smooth operation. The bearing performs reliably in temperatures ranging from -30°C to 110°C.

This model is interchangeable with Timken bearings, offering a practical replacement option. Ideal for use in heavy-duty machinery or automotive systems where combined loads are common.

Weighing just 2lb, it balances strength and portability. Compliant with RoHS and REACH standards for safe and sustainable use.

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Product Parameters

  • Part Number 386A-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 2.17"
  • 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 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 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 2 lb

Features

Performance Features of 386A-383X Bearing

386A-383X Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 24,200 lbf, making it suitable for heavy-duty applications.
The steel cage ensures proper roller alignment, enhancing durability and reducing wear.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

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

386A-383X Bearing features a single-row tapered roller design, optimised for combined load handling.
The chrome steel construction provides excellent strength and wear resistance.
Its standard radial clearance ensures smooth operation, while the open design simplifies lubrication.
This bearing is interchangeable with Timken models, offering flexibility in replacements.

Built for Durability: 386A-383X Bearing

386A-383X Bearing’s robust design includes precise cone and cup width tolerances for consistent performance.
The steel cage maintains roller position, reducing friction and extending service life.
With a static radial load capacity of 24,100 lbf, it handles demanding applications with ease.
Its ABEC-1 rating ensures reliable precision in various industrial uses.

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

386A-383X Bearing uses chrome steel for both rollers and rings, providing excellent load-bearing capabilities.
This material choice ensures durability and cost-effectiveness compared to ceramic alternatives.
The bearing’s dynamic thrust rating of 3,810 lbf makes it versatile for different load types.
Its standard radial clearance allows for smooth operation in most industrial settings.

Application

Industrial Uses of 386A-383X Bearing
386A-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 386A-383X Bearing Used?
You’ll often find 386A-383X Bearing in automotive applications like wheel hubs and differentials, thanks to its ability to manage both radial and thrust loads. Its inch sizing makes it a good fit for American-made vehicles.

Built for Heavy-Duty Use: 386A-383X Bearing
386A-383X Bearing excels in industrial settings like conveyor systems, where its open design allows for easy lubrication. The steel cage adds extra strength, making it reliable for long-term use.

Automotive vs Aerospace: Applications of 386A-383X Bearing
In automotive systems, 386A-383X Bearing supports high-load components like axles, while in aerospace, its precision helps with landing gear mechanisms. The ABEC-1 rating ensures consistent performance across different environments.

Practical Applications of 386A-383X Bearing
386A-383X Bearing is a solid choice for mining equipment, where its robust design withstands harsh conditions. The standard radial clearance offers flexibility for various load requirements.

Q&A

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