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52375-52637D TDO (Two-Row Double-Outer Race) (Imperial)

52375-52637D TDO (Two-Row Double-Outer Race) (Imperial)

The 52375-52637D is a double-row tapered roller bearing with a 3.75″ bore and 6.375″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 22700 lbf (two-row radial) and 10600 lbf (thrust), making it a robust choice for heavy-duty applications.

Its open design requires regular lubrication but offers easy maintenance, while the steel cage ensures durability. The bearing operates smoothly in temperatures from -30°C to 110°C, suitable for varied environments.

This model is part of the 52000 series, featuring standard cups and ABEC-1 precision. Ideal for industrial machinery or vehicle axles where high radial and thrust loads are common. Compliant with RoHS and REACH standards, it weighs 13.87 lbs for its size.

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Product Parameters

  • Part Number 52375-52637D
  • Brand TFL
  • Size 3.75" x 6.375" x 1.4219"
  • Bore Dia 3.75"
  • 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 4.41"
  • 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 52375
  • 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 13.87 lb

Features

Performance Features of 52375-52637D Bearing

52375-52637D 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 suitable for heavy-duty applications.

The double-row tapered roller design ensures stability and even load distribution.
This construction enhances durability and extends the bearing’s service life.

52375-52637D Bearing operates efficiently within a temperature range of -30° to 110°C.
Its standard radial clearance options provide flexibility for various industrial needs.

Application

Industrial Uses of 52375-52637D Bearing
The 52375-52637D Bearing is widely used in heavy machinery, such as construction equipment and mining gear, 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.

What Makes 52375-52637D Bearing a Preferred Choice?
In automotive applications, 52375-52637D Bearing supports heavy-duty axles and wheel hubs, providing stability under high loads.
The tapered roller design offers smooth operation, even in challenging conditions like off-road driving or towing.

Built for Heavy-Duty Use: 52375-52637D Bearing
This bearing excels in industrial fans and pumps, where its open seal design allows for easy lubrication and maintenance.
The inch sizing makes it compatible with a variety of North American machinery, reducing the need for custom fittings.

Automotive vs Aerospace: Applications of 52375-52637D Bearing
In automotive settings, 52375-52637D Bearing is ideal for transmissions and differentials, thanks to its high dynamic load capacity.
While not typically used in aerospace, its precision makes it suitable for ground support equipment and heavy-duty transport vehicles.

Essential Roles of 52375-52637D Bearing
For agricultural machinery, 52375-52637D Bearing ensures reliable performance in tractors and harvesters, where dust and debris are common.
The steel cage enhances its strength, making it a practical choice for equipment that operates in rough conditions.

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