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TS (Single Row Tapered Roller Bearings) (Imperial) 689-674

TS (Single Row Tapered Roller Bearings) (Imperial) 689-674

The 689-674 is a single-row tapered roller bearing with a 4.0625″ 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 versatile for various applications.

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

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

Weighing 7.6 lb, it’s robust 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 689-674
  • Brand TFL
  • Interchangeable Timken
  • Size 4.0625" x 6.75" x 1.625"
  • Bore Dia 4.0625"
  • 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 +0.014" to -0.01"
  • Cone Backface ToClear Radius 0.14"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 5.28"
  • Cone Backface Backing Diameter 4.84"
  • 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 689
  • 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 7.6 lb

Features

How Is 689-674 Bearing Engineered for Reliability?

689-674 Bearing is constructed with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 59,500 lbf, ensuring dependable performance in various applications.
The steel cage maintains roller alignment, reducing friction and extending operational life.
With a temperature range of -30° to 110°C, it performs reliably in diverse conditions.

What Makes 689-674 Bearing Suitable for High-Temperature Applications?

689-674 Bearing operates effectively in temperatures ranging from -30° to 110°C, making it versatile for different environments.
The chrome steel construction ensures durability and resistance to wear under high thermal stress.
Its standard radial clearance options allow for flexibility in various operational settings.
The bearing’s design balances load capacity and thermal stability for consistent performance.

Designed for Durability: 689-674 Bearing

689-674 Bearing features a single-row tapered roller design, optimised for handling combined loads.
The chrome steel components enhance strength and longevity, even under heavy radial and thrust loads.
Its precise tolerances ensure smooth operation, reducing the need for frequent maintenance.
The open seal type allows for easy lubrication, further extending its service life.

Application

Industrial Uses of 689-674 Bearing
689-674 Bearing is commonly used in heavy machinery like construction equipment and mining gear, where its tapered roller design handles combined loads effectively. The chrome steel construction ensures durability even in tough working conditions.

Where Is 689-674 Bearing Used?
You’ll often find 689-674 Bearing in agricultural machinery, supporting axles and gearboxes that need reliable performance. Its inch sizing makes it a good fit for older or custom-built equipment.

Built for Heavy-Duty Use: 689-674 Bearing
689-674 Bearing excels in industrial fans and pumps, where its open design allows for easy lubrication and maintenance. The steel cage adds strength, making it suitable for high-load applications.

Automotive vs Aerospace: Applications of 689-674 Bearing
In automotive systems, 689-674 Bearing works well in truck wheel hubs, while its precision also suits aerospace landing gear components. The ABEC-1 rating balances performance and cost for these demanding uses.

Perfect Fit for Automation: 689-674 Bearing
689-674 Bearing is a solid choice for conveyor systems in factories, thanks to its ability to handle both radial and thrust loads. The standard radial clearance ensures smooth operation over long periods.

Q&A

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