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TS (Single Row Tapered Roller Bearings) (Imperial) 387-S-382A

TS (Single Row Tapered Roller Bearings) (Imperial) 387-S-382A

The 387-S-382A is a single-row tapered roller bearing with a 2.25″ bore and 3.8125″ 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 for easy lubrication, while the steel cage ensures durability. The bearing operates smoothly in temperatures ranging from -30°C to 110°C, suitable for demanding environments.

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

Weighing 1.3 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it meets safety and environmental requirements. The ABEC-1 rating ensures consistent performance for standard precision needs.

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Product Parameters

  • Part Number 387-S-382A
  • Brand TFL
  • Interchangeable Timken
  • Size 2.25" x 3.8125" x 0.8268"
  • Bore Dia 2.25"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.8125"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 0.864"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.625"
  • 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 0.03"
  • Cone Frontface Backing Diameter 2.48"
  • Cone Backface Backing Diameter 2.52"
  • Cup Frontface Backing Diameter 3.66"
  • 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 387-S
  • Cup Part Number 382A
  • 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 1.3 lb

Features

How Is 387-S-382A Bearing Engineered for Reliability?

387-S-382A Bearing is crafted from chrome steel, offering strong resistance to both radial and thrust loads.
Its dynamic radial load capacity reaches 24,200 lbf, making it suitable for heavy-duty applications.
The tapered roller design ensures even load distribution, reducing wear and extending service life.
With a standard radial clearance, it provides reliable performance in various operating conditions.

What Makes 387-S-382A Bearing Suitable for High-Temperature Applications?

387-S-382A Bearing operates efficiently in temperatures ranging from -30° to 110°C.
The chrome steel construction maintains its strength and durability even under thermal stress.
Its open design allows for easy lubrication, ensuring smooth operation in demanding environments.
The tapered rollers and steel cage work together to minimise friction and heat generation.

Built for Durability: 387-S-382A Bearing

387-S-382A Bearing features a single-row tapered roller design, optimised for combined load handling.
The chrome steel rollers and rings provide excellent wear resistance, enhancing longevity.
With a static radial load capacity of 24,100 lbf, it delivers consistent performance under pressure.
Its standard radial clearance and ABEC-1 rating ensure precision and reliability in various applications.

Steel vs Ceramic Bearings: Strengths of 387-S-382A Bearing

387-S-382A Bearing uses high-quality chrome steel for both rollers and rings, ensuring durability.
This material choice provides excellent load-bearing capacity and resistance to wear.
The steel cage maintains proper roller alignment, reducing friction and extending service life.
Its robust construction makes it a reliable choice for industrial and automotive applications.

Performance Features of 387-S-382A Bearing

387-S-382A Bearing is designed to handle combined loads with its tapered roller configuration.
The dynamic thrust rating of 3,810 lbf ensures reliable performance in thrust applications.
Its effective centre location and precise tolerances contribute to smooth operation.
The open seal type allows for easy maintenance and lubrication, reducing downtime.

Application

Industrial Uses of 387-S-382A Bearing
387-S-382A 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 tough working conditions.

Where Is 387-S-382A Bearing Used?
You’ll often find 387-S-382A Bearing in automotive applications, such as wheel hubs and differential systems. Its precise inch sizing makes it a reliable choice for older or custom-built vehicles.

Built for Heavy-Duty Use: 387-S-382A Bearing
387-S-382A Bearing excels in industrial gearboxes, providing smooth operation under high radial and thrust loads. The open design allows for easy lubrication, extending its service life.

Automotive vs Aerospace: Applications of 387-S-382A Bearing
In automotive settings, 387-S-382A Bearing supports drivetrain components, while its robust design also suits aerospace landing gear systems. The ABEC-1 rating ensures consistent performance in both fields.

Practical Applications of 387-S-382A Bearing
387-S-382A Bearing is ideal for agricultural machinery, where its steel cage withstands dusty environments. The standard radial clearance offers flexibility for various load conditions.

Q&A

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