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52387P-52637D TDO (Two-Row Double-Outer Race) (Imperial)

52387P-52637D TDO (Two-Row Double-Outer Race) (Imperial)

The 52387P-52637D is a double-row tapered roller bearing with a 3.875″ bore and 6.375″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 104,000 lbf and is designed for long-lasting performance in demanding conditions.

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

This model is part of the 52000 series and comes with standard cups for straightforward installation. Ideal for heavy-duty applications like industrial gearboxes or large machinery where high radial and thrust loads are common.

Weighing 13.27 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a reliable choice for replacements or new installations.

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Product Parameters

  • Part Number 52387P-52637D
  • Brand TFL
  • Size 3.875" x 6.375" x 1.4219"
  • Bore Dia 3.875"
  • Bore Dia Tolerance +0.001" to 0
  • Outer Dia 6.375"
  • Outer Dia Tolerance +0.001" to 0
  • Double Cup Width 2.4375"
  • Double Cup Width Tolerance +0.003" to -0.01
  • Cone Width 1.4219"
  • Cone Width Tolerance +0.002" to -0.01
  • Bearing Width Across Cups 3.2498"
  • Bearing Width Across Cups Tolerance +0.008" to 0
  • Cup Backface ToClear Radius 0.03"
  • Cone Backface Backing Diameter 4.49"
  • Cup Frontface Backing Diameter 6.08"
  • Cage Cone Backface Clearance 0.16"
  • Dynamic Radial Load 104000 lbf
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 52387P
  • Cup Part Number 52637D
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Double Row
  • Seal Type Open
  • Cups Type Standard
  • Series 52000
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Rating(One Row 90 Million Revolutions) 15400 lbf
  • Dynamic Thrust Rating(90 Million Revolutions) 12500 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions) 26900 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 13.27 lb

Features

How Is 52387P-52637D Bearing Engineered for Reliability?

52387P-52637D Bearing features a double-row tapered roller design, providing robust support for combined radial and thrust loads.
Its chrome steel construction ensures durability, with a dynamic radial load capacity of 104,000 lbf.

The precision-engineered cage maintains proper roller alignment, reducing friction and wear.
With a standard radial clearance, it offers consistent performance across various applications.

52387P-52637D Bearing operates efficiently within a temperature range of -30° to 110°C.
Its open design allows for easy lubrication, ensuring smooth operation over time.

The bearing’s inch measurements and ABEC-1 rating make it suitable for imperial system applications.
Its weight of 13.27 lb reflects a sturdy build without compromising on performance.

Application

Industrial Uses of 52387P-52637D Bearing
This bearing is commonly used in heavy machinery like construction equipment and mining rigs, where its double-row design handles both radial and thrust loads efficiently. The chrome steel construction ensures durability even in demanding environments.

In automotive applications, 52387P-52637D Bearing supports large vehicle components such as truck axles and differential systems. Its inch sizing makes it a reliable choice for American and British automotive manufacturers.

For industrial automation, 52387P-52637D Bearing provides stability in robotic arms and conveyor systems. The open seal design allows for easy lubrication, extending its service life in high-use scenarios.

Where Is 52387P-52637D Bearing Used?
You’ll often find this bearing in agricultural machinery, where its tapered roller design manages heavy loads from ploughs and harvesters. The steel cage adds extra strength for long-term use.

In wind turbines, 52387P-52637D Bearing helps manage the combined loads from rotor blades and gearboxes. Its temperature range makes it suitable for both hot and cold operating conditions.

Built for Heavy-Duty Use: 52387P-52637D Bearing
This bearing excels in railway applications, supporting freight car axles with its robust double-row construction. The standard radial clearance ensures smooth operation under varying loads.

For marine equipment, 52387P-52637D Bearing handles the harsh conditions of ship propulsion systems. Its chrome steel rollers resist corrosion, making it a dependable choice for saltwater environments.

Automotive vs Aerospace: Applications of 52387P-52637D Bearing
In automotive settings, this bearing is ideal for heavy-duty trucks and buses, where its load capacity shines. The inch measurements align perfectly with North American vehicle standards.

For aerospace ground equipment, 52387P-52637D Bearing supports loading platforms and maintenance tools. Its ABEC-1 rating ensures reliable performance without over-engineering for non-flight critical uses.

Q&A

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