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TS (Single Row Tapered Roller Bearings) (Imperial) 861-852

TS (Single Row Tapered Roller Bearings) (Imperial) 861-852

The 861-852 is a single-row tapered roller bearing with a 4″ bore and 7.5″ outer diameter, crafted from sturdy chrome steel. It manages combined loads up to 103,000 lbf radially and 15,300 lbf thrust, suitable for heavy-duty use.

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

This model is interchangeable with Timken bearings, making it a practical choice for replacements. Ideal for applications like industrial gearboxes or heavy machinery where combined loads are common.

Weighing 15.3 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a reliable option for various industrial needs.

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Product Parameters

  • Part Number 861-852
  • Brand TFL
  • Interchangeable Timken
  • Size 4" x 7.5" x 2.2501"
  • Bore Dia 4"
  • 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 0.310"
  • 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 6.69"
  • 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 861
  • 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 15.3 lb

Features

How Does 861-852 Bearing Handle Combined Loads?

861-852 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, making it suitable for heavy-duty applications.
The steel cage ensures proper roller alignment, reducing friction and extending operational life.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

What Makes 861-852 Bearing Durable?

861-852 Bearing features precision-engineered tapered rollers for even load distribution and reduced wear.
The chrome steel construction enhances durability, even under high dynamic thrust loads of 15,300 lbf.
Its standard radial clearance options allow for flexibility in different applications.
The open design simplifies lubrication, ensuring smooth operation over time.

Engineered for Precision: 861-852 Bearing

861-852 Bearing’s single-row tapered roller design provides accurate load handling and alignment.
The tight tolerances on bore and outer diameters ensure a precise fit in assemblies.
Its effective center location of -0.6″ optimises performance in combined load scenarios.
The steel cage maintains roller spacing, contributing to consistent performance.

Steel vs Ceramic Bearings: Strengths of 861-852 Bearing

861-852 Bearing’s chrome steel rollers and rings offer a balance of strength and cost-effectiveness.
The material choice ensures reliable performance under high static radial loads up to 142,000 lbf.
Its ABEC-1 rating guarantees sufficient precision for most industrial applications.
The standard lubrication requirement ensures easy maintenance and long service life.

Application

Industrial Uses of 861-852 Bearing
The 861-852 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 861-852 Bearing Used?
You’ll often find 861-852 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 fit for many North American industrial applications.

Built for Heavy-Duty Use: 861-852 Bearing
In conveyor systems, 861-852 Bearing provides reliable performance, thanks to its open design and steel cage. Its standard radial clearance allows for smooth operation under varying load conditions.

Automotive vs Aerospace: Applications of 861-852 Bearing
In automotive applications, 861-852 Bearing is ideal for wheel hubs and differentials, offering stability under combined loads. For aerospace, its precision and temperature tolerance make it suitable for auxiliary systems.

Perfect Fit for Automation: 861-852 Bearing
861-852 Bearing works well in automated assembly lines, where its tapered rollers ensure precise movement. The ABEC-1 rating provides a balance of performance and cost for industrial automation needs.

Q&A

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