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42376-42587D TDO (Two-Row Double-Outer Race) (Imperial)

42376-42587D TDO (Two-Row Double-Outer Race) (Imperial)

The 42376-42587D is a two-row tapered roller bearing with a 3.75″ bore and 5.875″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 75600 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 double-row construction provides extra stability and load capacity, ideal for heavy machinery or industrial equipment. With standard radial clearance and ABEC-1 rating, it offers reliable precision for most applications.

Weighing 8.39 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a safe choice for replacement or new installations. Suitable for gearboxes, axles, or other high-load scenarios.

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Product Parameters

  • Part Number 42376-42587D
  • Brand TFL
  • Size 3.75" x 5.875" x 1.1406"
  • Bore Dia 3.75"
  • 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 4.29"
  • 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 42376
  • 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 8.39 lb

Features

Performance Features of 42376-42587D Bearing

42376-42587D Bearing is built with chrome steel rings and rollers, offering robust performance under combined loads.
Its dynamic radial load capacity reaches 75,600 lbf, making it suitable for heavy-duty applications.
The double-row tapered roller design ensures stability and efficient load distribution.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

How Is 42376-42587D Bearing Engineered for Reliability?

42376-42587D Bearing features a steel cage that maintains roller alignment, reducing wear and extending lifespan.
The standard radial clearance option provides flexibility for different operational needs.
Its ABEC-1 rating ensures consistent precision in performance.
The open seal design allows for easy lubrication and maintenance.

Built for Durability: 42376-42587D Bearing

42376-42587D Bearing’s chrome steel construction resists wear, ensuring long service life even under stress.
The double-row design enhances load capacity and operational stability.
It operates efficiently within a wide temperature range, from -30° to 110°C.
The bearing’s standard radial clearance option adapts to various application requirements.

Steel vs Ceramic Bearings: Strengths of 42376-42587D Bearing

42376-42587D Bearing uses chrome steel for both rings and rollers, providing excellent strength and durability.
Its dynamic radial load rating of 75,600 lbf makes it ideal for heavy industrial use.
The steel cage ensures proper roller alignment, minimising friction and wear.
With a weight of 8.39 lb, it balances robustness and practicality.

Application

Industrial Uses of 42376-42587D Bearing
The 42376-42587D Bearing is commonly used in heavy machinery like construction equipment and mining drills, where its double-row design handles combined radial and thrust loads efficiently.
Its imperial sizing makes it a straightforward fit for older machinery still using inch-based measurements, particularly in North American industrial settings.

What Makes 42376-42587D Bearing a Preferred Choice?
In automotive applications, 42376-42587D Bearing works well in truck wheel hubs and differential systems due to its tapered roller construction.
The chrome steel rollers provide durability under heavy loads, while the open design simplifies lubrication during routine maintenance.

Built for Heavy-Duty Use: 42376-42587D Bearing
This bearing suits agricultural machinery like combine harvesters, where its two-row configuration distributes uneven loads effectively.
The steel cage ensures stability during high-vibration operations, making it reliable for fieldwork.

Automotive vs Aerospace: Applications of 42376-42587D Bearing
While 42376-42587D Bearing is robust enough for commercial vehicle axles, its ABEC-1 rating makes it less suited for precision aerospace applications.
However, it remains a cost-effective solution for ground transport and industrial gearboxes requiring imperial-sized components.

Where Is 42376-42587D Bearing Used?
You’ll often find 42376-42587D Bearing in conveyor systems at ports or warehouses, handling both radial and thrust forces from heavy material movement.
The standard radial clearance allows for smooth operation even with slight misalignments common in such installations.

Q&A

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