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TS (Single Row Tapered Roller Bearings) (Imperial) 866-854

TS (Single Row Tapered Roller Bearings) (Imperial) 866-854

The 866-854 is a single row tapered roller bearing with a 3.875″ bore and 7.5″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 103,000 lbf radially and 15,300 lbf thrust, making it robust for heavy-duty use.

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 conditions.

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

Weighing 15.6 lb, it’s built to last while maintaining performance. Compliant with RoHS and REACH standards for safe and eco-friendly use.

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Product Parameters

  • Part Number 866-854
  • Brand TFL
  • Interchangeable Timken
  • Size 3.875" x 7.5" x 2.2501"
  • Bore Dia 3.875"
  • Bore Dia Tolerance +0.001" to 0
  • Outer Dia 7.5"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 2.265"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 1.75"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 2.2501"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.14"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 5.06"
  • Cone Backface Backing Diameter 4.65"
  • Cup Frontface Backing Diameter 6.86"
  • Cup Backface Backing Diameter 6.69"
  • Cage Cone Frontface Clearance 0.06"
  • Cage Cone Backface Clearance 0.15"
  • Effective Center Location -0.6"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 866
  • Cup Part Number 854
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 855
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 103000 lbf
  • Static Radial Load 142000 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 26700 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 15300 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 15.6 lb

Features

Why Choose 866-854 Bearing for Precision Tasks?

866-854 Bearing is crafted with chrome steel rings and rollers, ensuring durability and precision in combined load applications.
Its dynamic radial load capacity reaches 103,000 lbf, making it suitable for heavy-duty industrial use.

The tapered roller design of 866-854 Bearing provides smooth operation and effective load distribution.
With a standard radial clearance, it offers reliable performance in various operating conditions.

866-854 Bearing operates efficiently within a temperature range of -30° to 110°C.
Its steel cage maintains roller alignment, reducing friction and extending service life.

The open design of 866-854 Bearing simplifies lubrication and maintenance.
It is interchangeable with Timken bearings, ensuring easy replacement and compatibility.

Application

Industrial Uses of 866-854 Bearing
866-854 Bearing is commonly used in heavy machinery, such as construction equipment and mining tools, where its tapered roller design handles combined loads effectively. The chrome steel construction ensures durability even in demanding environments.

In automotive applications, 866-854 Bearing supports axle systems and wheel hubs, providing reliable performance under high radial and thrust loads. Its imperial sizing makes it a preferred choice for North American vehicle manufacturers.

For industrial fans and blowers, 866-854 Bearing’s open design allows for easy lubrication, extending service life in continuous operation. The steel cage adds stability, reducing wear over time.

Where Is 866-854 Bearing Used?
You’ll often find 866-854 Bearing in agricultural machinery, like tractors and harvesters, where its robust design handles uneven loads. The ABEC-1 rating ensures consistent performance without unnecessary precision costs.

In conveyor systems, 866-854 Bearing’s tapered rollers manage both radial and axial forces, keeping operations smooth. The standard radial clearance offers a balance between performance and ease of installation.

Built for Heavy-Duty Use: 866-854 Bearing
866-854 Bearing excels in forestry equipment, such as log splitters, where its high static load capacity prevents deformation. The inch measurements simplify replacements in older machinery.

For pump systems, 866-854 Bearing’s temperature range (-30° to 110°C) suits both indoor and outdoor use. The steel cage and rollers provide reliable service even with frequent starts and stops.

Automotive vs Aerospace: Applications of 866-854 Bearing
In automotive drivetrains, 866-854 Bearing handles the high torque of trucks and buses, thanks to its dynamic load rating. The imperial sizing fits seamlessly into American and British vehicle designs.

While not typically used in aerospace, 866-854 Bearing’s reliability makes it suitable for ground support equipment. The chrome steel components resist corrosion in various weather conditions.

Q&A

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