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387-S-384DC TDO (Two-Row Double-Outer Race) (Imperial)

387-S-384DC TDO (Two-Row Double-Outer Race) (Imperial)

The 387-S-384DC is a double-row tapered roller bearing with a 2.25″ bore and 3.937″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 42200 lbf and is designed for long-lasting performance in demanding conditions.

Its open design allows for easy lubrication, while the steel cage ensures smooth operation. The bearing works well in temperatures ranging from -30°C to 110°C, making it versatile for various environments.

This model features a standard radial clearance and is ABEC-1 rated for reliable precision. Ideal for heavy-duty applications like industrial gearboxes or vehicle axles where combined loads are common.

Weighing 3.31 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a safe choice for most industrial settings.

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Product Parameters

  • Part Number 387-S-384DC
  • Brand TFL
  • Size 2.25" x 3.937" x 0.864"
  • Bore Dia 2.25"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.937"
  • Outer Dia Tolerance +0.001" to 0
  • Double Cup Width 1.6875"
  • Double Cup Width Tolerance +0.003" to -0.01
  • Cone Width 0.864"
  • Cone Width Tolerance +0.002" to -0.01
  • Bearing Width Across Cups 2.0624"
  • Bearing Width Across Cups Tolerance +0.008" to 0
  • Cup Backface ToClear Radius 0.03"
  • Cone Backface Backing Diameter 2.52"
  • Cup Frontface Backing Diameter 3.68"
  • Cage Cone Backface Clearance 0.03"
  • Dynamic Radial Load 42200 lbf
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 387-S
  • Cup Part Number 384DC
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Double Row
  • Seal Type Open
  • Cups Type Standard
  • Series 385
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Rating(One Row 90 Million Revolutions) 6280 lbf
  • Dynamic Thrust Rating(90 Million Revolutions) 3810 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions) 10900 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 3.31 lb

Features

How Is 387-S-384DC Bearing Engineered for Reliability?

387-S-384DC Bearing features a double-row tapered roller design, providing strong resistance to combined radial and thrust loads.
Its chrome steel construction ensures durability, with a dynamic radial load capacity of 42,200 lbf.

The precision-engineered cage maintains proper roller alignment, reducing friction and wear.
This design enhances the bearing’s performance in demanding industrial applications.

387-S-384DC Bearing operates efficiently within a temperature range of -30° to 110°C.
Its standard radial clearance options allow for flexibility in various operating conditions.

With its robust construction and reliable performance, 387-S-384DC Bearing is built to last.
The open seal design simplifies maintenance while ensuring smooth operation.

Application

Industrial Uses of 387-S-384DC Bearing
The 387-S-384DC Bearing is commonly used in heavy machinery like construction equipment and agricultural vehicles, where its double-row design handles combined radial and thrust loads efficiently. Its chrome steel construction ensures durability in demanding environments.
In automotive applications, 387-S-384DC Bearing fits well in wheel hubs and differential systems, thanks to its precise inch measurements and robust performance. The open seal design allows for easy lubrication, extending its service life.
For industrial conveyor systems, 387-S-384DC Bearing’s tapered roller design provides smooth operation under heavy loads. The standard radial clearance makes it adaptable to various operational conditions without compromising reliability.

What Makes 387-S-384DC Bearing a Preferred Choice?
The 387-S-384DC Bearing stands out in applications like mining equipment, where its high dynamic radial load capacity ensures long-term performance. Its steel cage adds extra strength, making it suitable for rough conditions.
In wind turbines, 387-S-384DC Bearing’s ability to handle combined loads makes it a reliable component for rotor shafts. The ABEC-1 rating ensures consistent precision even at moderate speeds.
For railway applications, 387-S-384DC Bearing’s temperature tolerance and lubrication requirements make it ideal for axle boxes, where reliability is critical.

Built for Heavy-Duty Use: 387-S-384DC Bearing
The 387-S-384DC Bearing is a go-to choice for forklifts and cranes, where its double-row tapered rollers manage heavy radial and thrust loads effortlessly. The inch sizing ensures compatibility with a wide range of equipment.
In marine applications, 387-S-384DC Bearing’s resistance to wear and corrosion makes it suitable for propeller shafts. The chrome steel rollers provide consistent performance even in saltwater environments.
For printing presses, 387-S-384DC Bearing’s precision and smooth operation help maintain print quality. Its standard radial clearance allows for easy integration into existing systems.

Automotive vs Aerospace: Applications of 387-S-384DC Bearing
In automotive systems, 387-S-384DC Bearing is often found in truck transmissions, where its combined load capacity ensures smooth gear shifts. The open seal design simplifies maintenance.
For aerospace ground equipment, 387-S-384DC Bearing’s robustness makes it suitable for landing gear testing rigs. Its temperature range ensures performance in varying conditions.
In industrial pumps, 387-S-384DC Bearing’s tapered roller design reduces friction, enhancing efficiency. The steel cage adds durability for long-term use.

Q&A

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