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TS (Single Row Tapered Roller Bearings) (Imperial) 6387-6320

TS (Single Row Tapered Roller Bearings) (Imperial) 6387-6320

The 6387-6320 is a single-row tapered roller bearing with a 2.25″ bore and 5.3447″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 72300 lbf radial and 10400 lbf thrust, making it a versatile choice.

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.

This model is interchangeable with Timken bearings, offering a reliable replacement option. Ideal for heavy-duty applications like gearboxes or industrial machinery where combined loads are common.

Weighing 8.80 lb, it’s built to last while maintaining performance. Compliant with RoHS and REACH standards for safe and sustainable use.

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Product Parameters

  • Part Number 6387-6320
  • Brand TFL
  • Interchangeable Timken
  • Size 2.25" x 5.3447" x 2.125"
  • Bore Dia 2.25"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 5.3447"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 2.205"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 1.75"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 2.125"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.03"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 2.83"
  • Cone Backface Backing Diameter 2.83"
  • Cup Frontface Backing Diameter 5.00"
  • Cup Backface Backing Diameter 4.61"
  • Cage Cone Frontface Clearance 0.05"
  • Cage Cone Backface Clearance 0.13"
  • Effective Center Location -0.76"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 6387
  • Cup Part Number 6320
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 6300
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 72300 lbf
  • Static Radial Load 90900 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 18700 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 10400 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 8.80 lb

Features

Performance Features of 6387-6320 Bearing

6387-6320 Bearing is constructed with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 72,300 lbf, making it suitable for heavy-duty applications.

The steel cage maintains roller alignment, ensuring smooth operation and reduced wear.
With a temperature range of -30° to 110°C, it performs reliably in various environments.

6387-6320 Bearing’s standard radial clearance provides flexibility for different operational needs.
Its ABEC-1 rating ensures consistent precision in industrial settings.

Application

Industrial Uses of 6387-6320 Bearing
The 6387-6320 Bearing is commonly used in heavy machinery like construction equipment and mining tools, where its tapered roller design handles combined loads effectively. Its chrome steel construction ensures durability in tough working conditions.
In automotive applications, 6387-6320 Bearing fits well in wheel hubs and drivetrains, providing reliable performance under radial and thrust loads. The imperial sizing makes it a straightforward choice for North American vehicle manufacturers.

Where Is 6387-6320 Bearing Used?
You’ll often find 6387-6320 Bearing in agricultural machinery, such as tractors and harvesters, where its robust design withstands heavy loads and rough terrain. The open seal type allows for easy lubrication, extending its service life.
It’s also a go-to option for industrial gearboxes, thanks to its ABEC-1 rating and standard radial clearance, which balance precision and cost-effectiveness.

Built for Heavy-Duty Use: 6387-6320 Bearing
The 6387-6320 Bearing excels in applications like conveyor systems and pulp mills, where its steel cage and chrome steel rollers resist wear over time. Its temperature range of -30° to 110°C ensures reliability in varied environments.
For maintenance teams, the bearing’s standard cup and cone design simplifies replacements, reducing downtime in production lines.

Automotive vs Aerospace: Applications of 6387-6320 Bearing
In automotive settings, 6387-6320 Bearing supports axles and transmissions, offering a balance of strength and affordability. Its dynamic radial load capacity of 72,300 lbf makes it suitable for high-stress components.
While not typically used in aerospace, this bearing’s precision and durability make it a reliable choice for ground support equipment and other industrial uses.

Q&A

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