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TS (Single Row Tapered Roller Bearings) (Imperial) 686-672A

TS (Single Row Tapered Roller Bearings) (Imperial) 686-672A

The 686-672A is a single-row tapered roller bearing with a 3.7392″ bore and 6.625″ outer diameter, crafted from durable chrome steel. It handles combined loads up to 59500 lbf radially and 12400 lbf thrust, making it robust for heavy-duty use.

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

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

Weighing 8.3 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 686-672A
  • Brand TFL
  • Interchangeable Timken
  • Size 3.7392" x 6.625" x 1.594"
  • Bore Dia 3.7392"
  • Bore Dia Tolerance +0.001" to 0
  • Outer Dia 6.625"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 1.594"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 1.375"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.594"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.14"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 4.88"
  • Cone Backface Backing Diameter 4.45"
  • Cup Frontface Backing Diameter 6.34"
  • Cup Backface Backing Diameter 5.87"
  • Cage Cone Frontface Clearance 0.12"
  • Cage Cone Backface Clearance 0.14"
  • Effective Center Location -0.08"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 686
  • Cup Part Number 672A
  • 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 8.3 lb

Features

Performance Features of 686-672A Bearing

686-672A 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 wear and extending operational life.
With a temperature range of -30° to 110°C, it performs well in various environments.

How Does 686-672A Bearing Resist Wear?

686-672A Bearing’s tapered roller design distributes loads evenly, minimising friction and wear.
The chrome steel construction enhances durability, even under high radial or thrust loads.
Precision tolerances ensure smooth operation, reducing the risk of premature failure.
Its standard radial clearance options provide flexibility for different applications.

Built for Reliability: 686-672A Bearing

686-672A Bearing is engineered for consistent performance in demanding conditions.
The single-row construction simplifies installation while maintaining high load capacity.
With a static radial load rating of 86,700 lbf, it handles heavy loads with ease.
Its ABEC-1 rating ensures dependable precision for industrial applications.

Steel vs Ceramic Bearings: Strengths of 686-672A Bearing

686-672A Bearing’s chrome steel construction offers excellent strength and durability.
It provides a cost-effective solution compared to ceramic bearings for many applications.
The steel cage and rollers ensure reliable performance under heavy combined loads.
With proper lubrication, it maintains smooth operation across its temperature range.

Application

Industrial Uses of 686-672A Bearing
The 686-672A Bearing is commonly used in heavy machinery like construction equipment and mining tools, where its tapered roller design handles combined loads efficiently. Its chrome steel construction ensures durability even in demanding environments.

Where Is 686-672A Bearing Used?
You’ll often find 686-672A Bearing in automotive applications, particularly in wheel hubs and differential systems. Its precise imperial sizing makes it a reliable choice for older or custom vehicle designs.

Built for Heavy-Duty Use: 686-672A Bearing
This bearing excels in industrial gearboxes, where its high dynamic radial load capacity keeps operations smooth. The open design simplifies lubrication, extending service life in continuous-use scenarios.

Automotive vs Aerospace: Applications of 686-672A Bearing
In automotive settings, 686-672A Bearing supports drivetrain components, while its robust build also suits aerospace ground equipment. The ABEC-1 rating balances performance and cost for these diverse uses.

Essential Roles of 686-672A Bearing
For conveyor systems in warehouses, 686-672A Bearing provides reliable performance under constant radial and thrust loads. Its steel cage offers added stability during prolonged operation.

Q&A

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