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TS (Single Row Tapered Roller Bearings) (Imperial) 779-772A

TS (Single Row Tapered Roller Bearings) (Imperial) 779-772A

The 779-772A is a single-row tapered roller bearing with a 3.875″ 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, gearboxes, or automotive applications where robust performance is needed.

Weighing 10.3 lb, it’s built to last while complying with RoHS and REACH standards for safety and environmental care.

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Product Parameters

  • Part Number 779-772A
  • Brand TFL
  • Interchangeable Timken
  • Size 3.875" x 6.875" x 1.8751"
  • Bore Dia 3.875"
  • 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 +0.008" to 0
  • Cone Backface ToClear Radius 0.14"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 5.04"
  • Cone Backface Backing Diameter 4.57"
  • 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 779
  • 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 10.3 lb

Features

Performance Features of 779-772A Bearing

779-772A Bearing is crafted from chrome steel, offering strong resistance to combined loads with a dynamic radial load capacity of 77800 lbf.
Its tapered roller design ensures smooth operation and efficient load distribution, enhancing durability.
The steel cage maintains roller alignment, reducing friction and wear.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

Application

Industrial Uses of 779-772A Bearing
779-772A Bearing is commonly used in heavy machinery like construction equipment and mining rigs, where its tapered roller design handles combined loads efficiently. The chrome steel construction ensures durability even in demanding environments.

In automotive applications, 779-772A Bearing fits well in truck wheel hubs and differential systems, providing reliable performance under heavy radial and thrust loads. Its imperial sizing makes it a straightforward replacement for Timken equivalents.

For industrial fans and pumps, 779-772A Bearing’s open design allows for easy lubrication, extending service life in high-speed operations. The steel cage adds stability, reducing wear over time.

What Makes 779-772A Bearing a Preferred Choice?
779-772A Bearing stands out in agricultural machinery, such as tractors and harvesters, due to its robust construction and ability to withstand uneven loads. The standard radial clearance offers flexibility for various operating conditions.

In material handling systems, 779-772A Bearing ensures smooth conveyor belt operations, thanks to its precise tolerances and high dynamic load capacity. Its compatibility with Timken parts simplifies maintenance and replacements.

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