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TS (Single Row Tapered Roller Bearings) (Imperial) 679-674

TS (Single Row Tapered Roller Bearings) (Imperial) 679-674

The 679-674 is a single-row tapered roller bearing with a 3.5″ bore and 6.75″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 59500 lbf radially and 12400 lbf thrust, making it robust for demanding applications.

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

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

Weighing 9.2 lb, it’s built to last while meeting RoHS and REACH standards for safety and compliance. The standard radial clearance can also be adjusted to C3, C4, or C5 if needed.

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Product Parameters

  • Part Number 679-674
  • Brand TFL
  • Interchangeable Timken
  • Size 3.5" x 6.75" x 1.625"
  • Bore Dia 3.5"
  • Bore Dia Tolerance +0.001" to 0
  • Outer Dia 6.75"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 1.625"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 1.1875"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.625"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.14"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 4.64"
  • Cone Backface Backing Diameter 4.21"
  • Cup Frontface Backing Diameter 6.34"
  • Cup Backface Backing Diameter 5.91"
  • Cage Cone Frontface Clearance 0.12"
  • Cage Cone Backface Clearance 0.17"
  • Effective Center Location -0.11"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 679
  • Cup Part Number 674
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 675
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 59500 lbf
  • Static Radial Load 86700 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 15400 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 12400 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 9.2 lb

Features

Performance Features of 679-674 Bearing

679-674 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 59,500 lbf, ensuring reliable performance in heavy-duty applications.

The steel cage maintains roller alignment, reducing friction and extending operational life.
With a temperature range of -30° to 110°C, it performs well in various environmental conditions.

679-674 Bearing requires lubrication, but its robust design minimises maintenance needs.
The standard radial clearance ensures smooth operation, suitable for a range of industrial uses.

Application

Industrial Uses of 679-674 Bearing
The 679-674 Bearing is commonly used in heavy machinery like construction equipment and agricultural gear, where its tapered roller design handles combined radial and thrust loads effectively. Its chrome steel construction ensures durability in tough environments.

Where Is 679-674 Bearing Used?
You’ll often find the 679-674 Bearing in industrial gearboxes and conveyor systems, thanks to its ability to manage high dynamic loads. The open design simplifies lubrication, making maintenance straightforward.

Built for Heavy-Duty Use: 679-674 Bearing
In mining and forestry equipment, the 679-674 Bearing stands up to harsh conditions with its robust steel cage and precise tolerances. Its inch sizing makes it a fit for many North American machinery standards.

Automotive vs Aerospace: Applications of 679-674 Bearing
In automotive drivetrains, the 679-674 Bearing supports axles and wheels, while in aerospace, it’s used in auxiliary systems where reliability is key. The ABEC-1 rating ensures consistent performance.

Key Fields for 679-674 Bearing
The 679-674 Bearing is ideal for rail and marine applications, where its static radial load capacity ensures stability. Its temperature range suits both cold and moderately hot operating conditions.

Q&A

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