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TS (Single Row Tapered Roller Bearings) (Imperial) 6391-6320

TS (Single Row Tapered Roller Bearings) (Imperial) 6391-6320

The 6391-6320 is a single-row tapered roller bearing with a 2.36″ bore and 5.34″ outer diameter, crafted from durable chrome steel. It handles combined loads up to 72,300 lbf radially and 10,400 lbf thrust, making it robust for heavy-duty use.

Its open design allows easy lubrication, while the steel cage ensures stability under high stress. The bearing operates smoothly in temperatures from -30°C to 110°C, suitable for varied environments.

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

Weighing 8.5 lb, it’s sturdy yet manageable for its size. Compliant with RoHS and REACH standards, it meets safety and environmental requirements.

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Product Parameters

  • Part Number 6391-6320
  • Brand TFL
  • Interchangeable Timken
  • Size 2.3617" x 5.3447" x 2.125"
  • Bore Dia 2.3617"
  • 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 0.14"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 2.91"
  • Cone Backface Backing Diameter 3.15"
  • 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 6391
  • 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 8.5 lb

Features

Performance Features of 6391-6320 Bearing

6391-6320 Bearing is built 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 ensures proper roller alignment, enhancing durability and reducing friction.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

Why Choose 6391-6320 Bearing for Precision Tasks?

6391-6320 Bearing’s tapered roller design provides precise load distribution, ideal for combined load scenarios.
The chrome steel construction ensures long-lasting performance even under high stress.
Its standard radial clearance options allow for flexibility in different applications.
The bearing’s ABEC-1 rating confirms its consistent quality and precision.

Engineered for Reliability: 6391-6320 Bearing

6391-6320 Bearing features a single-row construction, simplifying installation while maintaining strength.
The steel cage keeps rollers in place, preventing misalignment and extending service life.
With a static radial load capacity of 90,900 lbf, it handles demanding conditions with ease.
Its compatibility with Timken bearings makes replacement straightforward.

Steel vs Ceramic Bearings: Strengths of 6391-6320 Bearing

6391-6320 Bearing uses chrome steel for both rings and rollers, balancing cost and performance.
This material choice provides excellent durability without the higher cost of ceramic alternatives.
The bearing’s dynamic thrust rating of 10,400 lbf ensures reliable operation under axial loads.
Its standard lubrication requirements make maintenance simple and cost-effective.

Application

Industrial Uses of 6391-6320 Bearing
The 6391-6320 Bearing is commonly used in heavy machinery, such as construction equipment and mining tools, where its tapered roller design handles combined loads effectively. Its chrome steel construction ensures durability in demanding environments.

In automotive applications, 6391-6320 Bearing supports wheel hubs and differential systems, providing reliable performance under high radial and thrust loads. The imperial sizing makes it a preferred choice for North American vehicle models.

For industrial gearboxes, 6391-6320 Bearing’s open design allows for easy lubrication, extending service life in continuous operation. The steel cage adds stability, making it suitable for high-speed scenarios.

Q&A

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