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385X-384D TDO (Two-Row Double-Outer Race) (Imperial)

385X-384D TDO (Two-Row Double-Outer Race) (Imperial)

The 385X-384D is a two-row tapered roller bearing with a 2.1654″ bore and 3.937″ outer diameter, crafted from durable chrome steel. It handles combined loads with a dynamic radial capacity of 42200 lbf and operates smoothly in temperatures from -30°C to 110°C.

Its double-row design provides stability under heavy loads, while the open seal allows for easy lubrication. The steel cage ensures long-lasting performance, making it a reliable choice for demanding applications.

This bearing is ideal for industrial machinery or heavy equipment where combined radial and thrust loads are common. With standard radial clearance and ABEC-1 rating, it offers a balance of precision and durability.

Weighing 3.44 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a safe and dependable option for various engineering needs.

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Product Parameters

  • Part Number 385X-384D
  • Brand TFL
  • Size 2.1654" x 3.937" x 0.864"
  • Bore Dia 2.1654"
  • 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 2.64"
  • 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 385X
  • Cup Part Number 384D
  • 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 3.44 lb

Features

How Is 385X-384D Bearing Engineered for Reliability?

385X-384D 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 steel cage maintains roller alignment, reducing friction and extending service life.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

Built for Durability: 385X-384D Bearing

385X-384D Bearing is crafted with precision to handle heavy loads, thanks to its tapered roller design.
The chrome steel rings and rollers enhance strength, while the steel cage ensures smooth operation.
Its dynamic radial rating reaches 10,900 lbf for two rows, making it suitable for demanding applications.
The standard radial clearance options provide flexibility for different operational needs.

What Makes 385X-384D Bearing Suitable for High-Temperature Applications?

385X-384D Bearing operates efficiently in temperatures ranging from -30° to 110°C.
Its chrome steel components resist wear and maintain performance under thermal stress.
The double-row design distributes loads evenly, reducing heat buildup.
With proper lubrication, it ensures reliable operation in challenging environments.

Application

Industrial Uses of 385X-384D Bearing
385X-384D Bearing is commonly used in heavy machinery like construction equipment, where its double-row design handles combined radial and thrust loads effectively. The chrome steel construction ensures durability in demanding environments.

In automotive applications, 385X-384D Bearing supports wheel hubs and differential systems, providing reliable performance under varying loads. Its inch sizing makes it a good fit for American and British vehicle models.

For industrial automation, 385X-384D Bearing is ideal for conveyor systems and robotic arms, where precision and load capacity are key. The open seal design allows for easy lubrication, extending its service life.

Where Is 385X-384D Bearing Used?
You’ll often find 385X-384D Bearing in agricultural machinery, such as tractors and harvesters, where it handles heavy loads and rough conditions. Its tapered roller design ensures smooth operation even under stress.

In mining equipment, 385X-384D Bearing is valued for its ability to withstand high radial and thrust loads. The steel cage adds extra strength, making it suitable for prolonged use in harsh environments.

Built for Heavy-Duty Use: 385X-384D Bearing
385X-384D Bearing excels in applications like forklifts and cranes, where its double-row construction distributes loads evenly. The standard radial clearance option ensures compatibility with various machinery setups.

For railway systems, 385X-384D Bearing is a reliable choice for axle boxes, offering stability and long service life. Its temperature range of -30° to 110°C makes it versatile for different climates.

Automotive vs Aerospace: Applications of 385X-384D Bearing
In automotive settings, 385X-384D Bearing is often used in transmission systems, where its combined load capacity is essential. The ABEC-1 rating provides a balance of precision and affordability.

For aerospace ground equipment, 385X-384D Bearing supports landing gear testing rigs, thanks to its robust design. The inch measurements align well with imperial system components.

Q&A

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