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

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

The 385X-384XD is a double-row tapered roller bearing with a 2.1654″ bore and 3.937″ outer diameter, built from sturdy chrome steel. It handles combined loads, with a dynamic radial capacity of 42200 lbf and smooth operation up to 110°C.

Its open design allows for easy lubrication, while the steel cage ensures durability under heavy use. The bearing’s double-row construction provides stability for high-load applications.

This model fits standard cup types and is ideal for industrial machinery or vehicle axles where combined loads are common. It comes in standard radial clearance, with options for C3, C4, or C5 if needed.

Weighing 5.68 lb, it’s a robust choice for demanding environments. Compliant with RoHS and REACH standards, it meets ABEC-1 precision requirements.

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Product Parameters

  • Part Number 385X-384XD
  • 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 3.764"
  • 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 4.1389"
  • 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 3.74"
  • Cage Cone Backface Clearance 0.03"
  • Dynamic Radial Load 42200 lbf
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 385X
  • Cup Part Number 384XD
  • 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 5.68 lb

Features

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

385X-384XD 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 standard radial clearance and ABEC-1 rating, it offers reliable performance in various applications.

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

385X-384XD Bearing operates effectively in temperatures ranging from -30° to 110°C, making it versatile for different environments.
The chrome steel rings and rollers resist wear, even under heavy loads and high-speed conditions.
Its open design allows for easy lubrication, ensuring smooth operation over time.
The bearing’s robust construction ensures consistent performance in demanding industrial settings.

Designed for Durability: 385X-384XD Bearing

385X-384XD Bearing’s double-row tapered roller design enhances load distribution, reducing stress on individual components.
The chrome steel materials resist corrosion and wear, ensuring a long service life.
With a dynamic radial rating of 10,900 lbf for two rows, it handles heavy loads efficiently.
Its standard radial clearance options provide flexibility for various installation requirements.

Application

Industrial Uses of 385X-384XD Bearing
The 385X-384XD Bearing is commonly used in heavy machinery, such as construction equipment and mining vehicles, where its double-row design handles combined radial and thrust loads efficiently. Its chrome steel construction ensures durability in demanding environments.

Where Is 385X-384XD Bearing Used?
You’ll often find 385X-384XD Bearing in agricultural machinery, like tractors and harvesters, where its tapered roller design provides reliable performance under varying loads. The inch sizing makes it a good fit for North American equipment standards.

Built for Heavy-Duty Use: 385X-384XD Bearing
In industrial gearboxes, 385X-384XD Bearing offers stable operation thanks to its standard radial clearance and open design. The steel cage adds strength, making it suitable for high-load applications.

Automotive vs Aerospace: Applications of 385X-384XD Bearing
In automotive drivetrains, 385X-384XD Bearing supports axles and differentials, while in aerospace, its precision fits landing gear systems. The ABEC-1 rating ensures consistent performance across both sectors.

Practical Applications of 385X-384XD Bearing
For conveyor systems in warehouses, 385X-384XD Bearing’s combined load capacity keeps operations smooth. Its temperature range also makes it adaptable to both indoor and outdoor settings.

Q&A

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