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52400-52637D TDO (Two-Row Double-Outer Race) (Imperial)

52400-52637D TDO (Two-Row Double-Outer Race) (Imperial)

The 52400-52637D is a double-row tapered roller bearing with a 4-inch bore and 6.375-inch outer diameter, built from sturdy chrome steel. It handles combined loads up to 22700 lbf (two-row) 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 from -30°C to 110°C, making it versatile for various environments.

This model is part of the 52000 series, known for reliability in heavy-duty applications. Ideal for industrial machinery or automotive systems where high radial and thrust loads are common.

Weighing 12.67 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe use.

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Product Parameters

  • Part Number 52400-52637D
  • Brand TFL
  • Size 4" x 6.3750" x 1.4219"
  • Bore Dia 4"
  • Bore Dia Tolerance +0.001" to 0
  • Outer Dia 6.3750"
  • 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 4.61"
  • Cup Frontface Backing Diameter 6.08"
  • Cage Cone Backface Clearance 0.16"
  • Dynamic Radial Load 87500 lbf
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 52400
  • 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) 13000 lbf
  • Dynamic Thrust Rating(90 Million Revolutions) 10600 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions) 22700 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 12.67 lb

Features

What Makes 52400-52637D Bearing Suitable for Heavy-Duty Applications?

52400-52637D Bearing is built with chrome steel rings and rollers, offering robust performance under combined loads.
Its dynamic radial load capacity reaches 87,500 lbf, making it ideal for demanding industrial environments.

The double-row tapered roller design ensures stability and efficient load distribution.
With a standard radial clearance, it provides reliable operation in various conditions.

52400-52637D Bearing operates within a temperature range of -30° to 110°C, ensuring versatility.
The steel cage maintains roller alignment, reducing wear and extending service life.

This bearing requires lubrication but offers long-lasting performance with proper maintenance.
Its inch measurements and ABEC-1 rating make it suitable for precision applications.

Application

Industrial Uses of 52400-52637D Bearing
The 52400-52637D 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 52400-52637D Bearing Used?
You’ll often find the 52400-52637D Bearing in automotive applications like truck wheel hubs, where its tapered roller design provides stability under heavy loads.
The inch sizing makes it compatible with many North American industrial and automotive standards.

Built for Heavy-Duty Use: 52400-52637D Bearing
This bearing excels in agricultural machinery, such as tractors and harvesters, thanks to its robust construction and ability to withstand harsh conditions.
The open seal type allows for easy lubrication, which is essential for maintaining performance in dusty or wet environments.

Automotive vs Aerospace: Applications of 52400-52637D Bearing
In automotive systems, the 52400-52637D Bearing supports high-load components like axles and differentials, ensuring smooth operation.
While less common in aerospace, its precision and durability make it suitable for ground support equipment and heavy-duty aircraft components.

Key Fields for 52400-52637D Bearing
The 52400-52637D Bearing is ideal for industrial fans and pumps, where its tapered rollers reduce friction and improve efficiency.
Its standard radial clearance options provide flexibility for various applications, from light to heavy machinery.

Q&A

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