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42381-42587D TDO (Two-Row Double-Outer Race) (Imperial)

42381-42587D TDO (Two-Row Double-Outer Race) (Imperial)

The 42381-42587D is a two-row tapered roller bearing with a 3.8125″ bore and 5.875″ outer diameter, built from sturdy chrome steel for long-lasting performance. It handles combined loads up to 75600 lbf and is designed for smooth operation in demanding conditions.

Its double-row construction provides extra stability, while the open design allows for easy lubrication. The bearing works well in temperatures from -30°C to 110°C, making it versatile for various environments.

This model is part of the 42000 series and meets ABEC-1 standards for precision. Ideal for heavy-duty applications like industrial gearboxes or machinery where both radial and thrust loads are present.

Weighing 8.11 lb, it’s a robust choice for equipment requiring reliable performance. Compliant with RoHS and REACH standards, ensuring safe and eco-friendly use.

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Product Parameters

  • Part Number 42381-42587D
  • Brand TFL
  • Size 3.8125" x 5.875" x 1.1406"
  • Bore Dia 3.8125"
  • Bore Dia Tolerance +0.001" to 0
  • Outer Dia 5.875"
  • Outer Dia Tolerance +0.001" to 0
  • Double Cup Width 2.0625"
  • Double Cup Width Tolerance +0.003" to -0.01
  • Cone Width 1.1406"
  • Cone Width Tolerance +0.002" to -0.01
  • Bearing Width Across Cups 2.6248"
  • Bearing Width Across Cups Tolerance +0.008" to 0
  • Cup Backface ToClear Radius 0.03"
  • Cone Backface Backing Diameter 4.33"
  • Cup Frontface Backing Diameter 5.64"
  • Cage Cone Backface Clearance 0.1"
  • Dynamic Radial Load 75600 lbf
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 42381
  • Cup Part Number 42587D
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Double Row
  • Seal Type Open
  • Cups Type Standard
  • Series 42000
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Rating(One Row 90 Million Revolutions) 11300 lbf
  • Dynamic Thrust Rating(90 Million Revolutions) 9480 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions) 19600 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 8.11 lb

Features

How Is 42381-42587D Bearing Engineered for Reliability?

42381-42587D Bearing features a double-row tapered roller design, providing robust support for combined radial and thrust loads.
Its chrome steel construction ensures durability and resistance to wear in demanding applications.
With a dynamic radial load capacity of 75,600 lbf, it handles heavy-duty operations with ease.
The standard radial clearance and ABEC-1 rating offer reliable performance across various conditions.

What Makes 42381-42587D Bearing Suitable for High-Temperature Applications?

42381-42587D Bearing operates efficiently within a temperature range of -30° to 110°C, making it versatile for different environments.
The chrome steel rings and rollers maintain structural integrity even under thermal stress.
Its open seal design allows for effective lubrication, reducing friction and heat buildup.
This ensures consistent performance in high-temperature industrial settings.

Built for Durability: 42381-42587D Bearing

42381-42587D Bearing’s double-row construction enhances load distribution, extending its service life.
The steel cage keeps rollers aligned, minimising wear and improving reliability.
With a dynamic radial rating of 19,600 lbf for two rows, it excels in heavy-load scenarios.
Its precision tolerances ensure smooth operation and reduced maintenance needs.

Application

Industrial Uses of 42381-42587D Bearing
The 42381-42587D Bearing is commonly used in heavy machinery, such as construction equipment and mining tools, where its double-row design handles combined radial and thrust loads efficiently.
Its chrome steel construction ensures durability in demanding environments, making it a reliable choice for long-term use.

Where Is 42381-42587D Bearing Used?
You’ll often find the 42381-42587D Bearing in agricultural machinery, like tractors and harvesters, where its tapered roller design supports high-load applications.
The inch sizing makes it compatible with many North American industrial systems, simplifying replacements.

Built for Heavy-Duty Use: 42381-42587D Bearing
This bearing excels in applications like gearboxes and drivetrains, where its open design allows for easy lubrication and maintenance.
The steel cage adds strength, ensuring smooth operation even under continuous stress.

Automotive vs Aerospace: Applications of 42381-42587D Bearing
In automotive systems, the 42381-42587D Bearing supports wheel hubs and differentials, thanks to its robust load capacity.
For aerospace ground equipment, its precision and temperature tolerance make it suitable for handling heavy loads in varying conditions.

Key Fields for 42381-42587D Bearing
The 42381-42587D Bearing is a go-to for railway applications, particularly in axle boxes where combined loads are common.
Its standard radial clearance options provide flexibility for different operational needs.

Q&A

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