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TS (Single Row Tapered Roller Bearings) (Imperial) 861-854X

TS (Single Row Tapered Roller Bearings) (Imperial) 861-854X

The 861-854X is a single-row tapered roller bearing with a 4″ bore and 7.875″ outer diameter, built from sturdy chrome steel for long-lasting performance. It handles combined loads up to 103,000 lbf radially and 15,300 lbf thrust, making it suitable for heavy-duty applications.

Its open design allows for easy lubrication, while the steel cage ensures smooth operation even under high stress. The bearing operates well in temperatures ranging from -30°C to 110°C.

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

Weighing 18.4 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it meets international safety and environmental requirements.

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Product Parameters

  • Part Number 861-854X
  • Brand TFL
  • Interchangeable Timken
  • Size 4" x 7.875" x 2.4375"
  • Bore Dia 4"
  • Bore Dia Tolerance +0.001" to 0
  • Outer Dia 7.875"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 2.265"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 1.9375"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 2.4375"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.310"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 5.31"
  • Cone Backface Backing Diameter 5.08"
  • Cup Frontface Backing Diameter 6.86"
  • Cup Backface Backing Diameter 6.81"
  • 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 861
  • Cup Part Number 854X
  • 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 18.400 lb

Features

How Does 861-854X Bearing Handle Combined Loads?

861-854X Bearing is built with chrome steel rings and rollers, offering strong resistance to both radial and thrust loads.
Its dynamic radial load capacity reaches 103,000 lbf, ensuring reliable performance in demanding conditions.
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.

Application

Industrial Uses of 861-854X Bearing
861-854X Bearing is commonly used in heavy machinery like construction equipment and mining tools, where its tapered roller design handles combined loads effectively. The chrome steel construction ensures durability even in demanding environments.

Where Is 861-854X Bearing Used?
You’ll often find 861-854X Bearing in agricultural machinery, such as tractors and harvesters, thanks to its ability to manage high radial and thrust loads. Its inch sizing makes it a fit for many North American industrial applications.

Built for Heavy-Duty Use: 861-854X Bearing
861-854X Bearing excels in truck wheel hubs, providing reliable performance under constant stress. The open design allows for easy lubrication, extending its service life in long-haul vehicles.

Automotive vs Aerospace: Applications of 861-854X Bearing
In automotive systems, 861-854X Bearing supports axles and transmissions, while in aerospace, it’s used in landing gear for its load-bearing capacity. The steel cage adds stability during high-speed operations.

Perfect Fit for Automation: 861-854X Bearing
861-854X Bearing is ideal for conveyor systems in automated factories, where precision and durability are key. Its standard radial clearance ensures smooth operation in continuous-use scenarios.

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