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TS (Single Row Tapered Roller Bearings) (Imperial) 866-852

TS (Single Row Tapered Roller Bearings) (Imperial) 866-852

The 866-852 is a single-row tapered roller bearing with a 3.875″ bore and 7.5″ 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 durability under high stress. The bearing operates smoothly in temperatures ranging from -30°C to 110°C, ideal for varied environments.

This model is interchangeable with Timken bearings, offering a reliable replacement option. Perfect for industrial machinery, gearboxes, or heavy equipment where robust load handling is needed.

Weighing 15.9 lb, it’s built to withstand demanding conditions while complying with RoHS and REACH standards. The standard radial clearance ensures versatility for different setups.

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Product Parameters

  • Part Number 866-852
  • 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 1.875"
  • 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 852
  • 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 15.9 lb

Features

Performance Features of 866-852 Bearing

866-852 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 103,000 lbf, making it suitable for heavy-duty applications.

The steel cage ensures proper roller alignment, reducing friction and enhancing durability.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

866-852 Bearing requires lubrication, ensuring smooth operation and extended service life.
Its standard radial clearance options provide flexibility for different installation needs.

Application

Industrial Uses of 866-852 Bearing
The 866-852 Bearing is commonly used in heavy machinery like construction equipment and mining rigs, where its tapered roller design handles combined loads effectively. Its chrome steel construction ensures durability even in demanding environments.

Where Is 866-852 Bearing Used?
You’ll often find 866-852 Bearing in agricultural machinery, such as tractors and harvesters, where its robust design supports high radial and thrust loads. The inch sizing makes it a convenient choice for North American equipment.

Built for Heavy-Duty Use: 866-852 Bearing
In industrial gearboxes, 866-852 Bearing provides reliable performance under continuous operation. The open design allows for easy lubrication, extending its service life in high-temperature conditions.

Automotive vs Aerospace: Applications of 866-852 Bearing
While 866-852 Bearing is popular in truck wheel hubs for its load capacity, it’s also suitable for aerospace ground support equipment. The ABEC-1 rating ensures consistent precision for both applications.

Key Fields for 866-852 Bearing
Railway applications benefit from 866-852 Bearing’s ability to handle heavy axial and radial loads. Its steel cage and chrome steel rollers offer excellent wear resistance for long-term use.

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