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TS (Single Row Tapered Roller Bearings) (Imperial) 786-772A

TS (Single Row Tapered Roller Bearings) (Imperial) 786-772A

The 786-772A is a single-row tapered roller bearing with a 4.125″ bore and 6.875″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 77800 lbf radially and 13300 lbf in thrust, making it versatile for heavy-duty use.

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.

This model is interchangeable with Timken bearings, offering a reliable replacement option. Ideal for industrial machinery or automotive applications where robust performance is needed.

Weighing 9.4 lb, it’s built to last while maintaining precision. Compliant with RoHS and REACH standards for safe and eco-friendly use.

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Product Parameters

  • Part Number 786-772A
  • Brand TFL
  • Interchangeable Timken
  • Size 4.125" x 6.875" x 1.8751"
  • Bore Dia 4.125"
  • Bore Dia Tolerance +0.001" to 0
  • Outer Dia 6.875"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 1.89"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 1.5"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.8751"
  • Width Tolerance +0.014" to -0.01"
  • Cone Backface ToClear Radius 0.25"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 5.43"
  • Cone Backface Backing Diameter 5.04"
  • Cup Frontface Backing Diameter 6.61"
  • Cup Backface Backing Diameter 6.22"
  • Cage Cone Frontface Clearance 0.07"
  • Cage Cone Backface Clearance 0.13"
  • Effective Center Location -0.32"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 786
  • Cup Part Number 772A
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 775
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 77800 lbf
  • Static Radial Load 111000 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 20200 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 13300 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 9.4 lb

Features

Engineered for Precision: 786-772A Bearing

786-772A Bearing is crafted with chrome steel rings and rollers, ensuring durability under combined loads.
Its dynamic radial load capacity reaches 77,800 lbf, making it suitable for heavy-duty applications.
The steel cage maintains roller alignment, reducing friction and enhancing performance.
With a temperature range of -30° to 110°C, it operates reliably in various conditions.

How Does 786-772A Bearing Reduce Friction?

786-772A Bearing features a precision-engineered tapered roller design, minimising friction during operation.
The chrome steel construction ensures smooth rolling action, even under high radial loads.
Its effective centre location of -0.32″ optimises load distribution for efficient performance.
The standard radial clearance allows for consistent operation across different applications.

Structural Advantages of 786-772A Bearing

786-772A Bearing’s single-row construction provides stability and strength in combined load scenarios.
The cone and cup width tolerances ensure precise fitment, reducing vibration and noise.
With a static radial load capacity of 111,000 lbf, it handles demanding industrial uses.
The open seal design simplifies lubrication and maintenance procedures.

Application

Industrial Uses of 786-772A Bearing
786-772A Bearing is commonly used in heavy machinery like construction equipment and mining drills, where its tapered roller design handles combined loads effectively. The chrome steel construction ensures durability even in demanding environments.

In automotive applications, 786-772A Bearing fits well in truck wheel hubs and differential systems, providing reliable performance under high radial and thrust loads. Its inch sizing makes it a preferred choice for North American vehicle models.

For industrial fans and pumps, 786-772A Bearing’s open design allows for easy lubrication, extending service life in continuous operation. The steel cage adds stability, reducing wear during high-speed rotations.

What Makes 786-772A Bearing a Preferred Choice?
786-772A Bearing stands out in agricultural machinery, such as tractors and harvesters, thanks to its robust design and standard radial clearance. The ABEC-1 rating ensures consistent performance without unnecessary precision costs.

In material handling systems, 786-772A Bearing supports conveyor rollers, where its dynamic load capacity keeps operations smooth. The inch measurements simplify replacements in existing setups.

Built for Heavy-Duty Use: 786-772A Bearing
786-772A Bearing excels in forestry equipment like log splitters, where its tapered rollers manage heavy combined loads. The chrome steel rollers resist deformation under extreme pressure.

For railway applications, 786-772A Bearing is used in axle boxes, providing reliable service in varying temperatures. Its standard lubrication requirement makes maintenance straightforward.

Automotive vs Aerospace: Applications of 786-772A Bearing
In automotive settings, 786-772A Bearing is ideal for heavy-duty truck transmissions, handling high torque with ease. The inch sizing ensures compatibility with older vehicle models.

For aerospace ground equipment, 786-772A Bearing supports cargo loaders and maintenance tools, where its static load capacity is crucial. The steel cage prevents deformation during frequent use.

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