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TS (Single Row Tapered Roller Bearings) (Imperial) 687-674

TS (Single Row Tapered Roller Bearings) (Imperial) 687-674

The 687-674 is a single-row tapered roller bearing with a 4-inch bore and 6.75-inch outer diameter, built from sturdy chrome steel. It handles combined loads up to 59500 lbf radially and 12400 lbf in thrust, making it versatile for heavy-duty use.

Its open design allows for easy lubrication, while the steel cage ensures durability under high stress. 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 industrial machinery, gearboxes, or automotive applications where robust performance is needed.

Weighing 7.8 lb, it’s designed for long-lasting service with standard radial clearance options. Compliant with RoHS and REACH standards for safe and eco-friendly use.

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Product Parameters

  • Part Number 687-674
  • Brand TFL
  • Interchangeable Timken
  • Size 4" x 6.75" x 1.625"
  • Bore Dia 4"
  • 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 5.12"
  • Cone Backface Backing Diameter 4.65"
  • 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 687
  • 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 7.8 lb

Features

How Does 687-674 Bearing Handle Combined Loads?

687-674 Bearing is built with chrome steel rings and rollers, offering strong resistance to both radial and thrust 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 environments.

Structural Advantages of 687-674 Bearing

687-674 Bearing features a single-row tapered roller design, optimised for combined load handling.
The precise cone and cup dimensions ensure smooth operation and easy installation.
Chrome steel construction enhances durability, while the open seal type allows for easy lubrication.
Its standard radial clearance makes it versatile for different industrial applications.

Why Choose 687-674 Bearing for Heavy-Duty Applications?

687-674 Bearing’s robust design handles dynamic radial loads up to 59,500 lbf and static loads up to 86,700 lbf.
The tapered roller construction distributes loads evenly, reducing stress on individual components.
Made from chrome steel, it resists wear and maintains performance in harsh conditions.
Its ABEC-1 rating ensures consistent precision for industrial machinery.

Application

Industrial Uses of 687-674 Bearing
The 687-674 Bearing is commonly used in heavy machinery, such as construction equipment and mining tools, where its tapered roller design handles combined radial and thrust loads effectively. Its chrome steel construction ensures durability in demanding environments.

Where Is 687-674 Bearing Used?
You’ll often find the 687-674 Bearing in agricultural machinery, like tractors and harvesters, where its robust design supports high loads and rough conditions. The inch sizing makes it a fit for many North American equipment standards.

Built for Heavy-Duty Use: 687-674 Bearing
In industrial gearboxes, the 687-674 Bearing provides reliable performance, thanks to its tapered rollers and steel cage. Its open design allows for easy lubrication, extending service life in high-speed applications.

Automotive vs Aerospace: Applications of 687-674 Bearing
The 687-674 Bearing is a go-to choice for truck wheel hubs, offering stability under heavy loads. While not typically used in aerospace, its precision makes it suitable for ground support equipment.

Key Fields for 687-674 Bearing
Railway applications benefit from the 687-674 Bearing’s ability to handle both radial and axial forces, ensuring smooth operation in freight and passenger cars. Its standard radial clearance adapts well to varying load conditions.

Q&A

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