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TS (Single Row Tapered Roller Bearings) (Imperial) 779-773

TS (Single Row Tapered Roller Bearings) (Imperial) 779-773

The 779-773 is a single-row tapered roller bearing with a 3.875″ bore and 7.0866″ outer diameter, crafted from durable chrome steel. It handles combined loads up to 77800 lbf radially and 13300 lbf thrust, making it robust for heavy-duty use.

Its open design allows easy lubrication, while the steel cage ensures reliable performance. The bearing operates smoothly in temperatures from -30°C to 110°C, suitable for various industrial conditions.

This model is interchangeable with Timken bearings, offering a practical replacement option. Ideal for applications like gearboxes, axles, or machinery where combined loads are common.

Weighing 11.4 lb, it’s sturdy yet manageable for its size. Compliant with RoHS and REACH standards, it meets safety and environmental requirements.

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Product Parameters

  • Part Number 779-773
  • Brand TFL
  • Interchangeable Timken
  • Size 3.875" x 7.0866" x 1.8898"
  • Bore Dia 3.875"
  • Bore Dia Tolerance +0.001" to 0
  • Outer Dia 7.0866"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 1.89"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 1.5748"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.8898"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.14"
  • Cup Backface ToClear Radius 0.12"
  • Cone Frontface Backing Diameter 5.04"
  • Cone Backface Backing Diameter 4.57"
  • Cup Frontface Backing Diameter 6.65"
  • Cup Backface Backing Diameter 6.3"
  • 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 773
  • 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 11.4 lb

Features

How Is 779-773 Bearing Engineered for Reliability?

779-773 Bearing features chrome steel rings and rollers, ensuring strength and 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 extending operational life.
With a standard radial clearance, it offers reliable performance in varied conditions.

779-773 Bearing operates efficiently within a temperature range of -30° to 110°C.
Its tapered roller design ensures smooth handling of both radial and thrust loads.

Application

Industrial Uses of 779-773 Bearing
779-773 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.

In automotive applications, 779-773 Bearing supports wheel hubs and differential systems, providing reliable performance under high radial and thrust loads. Its inch sizing makes it a preferred choice for American and British vehicle models.

For industrial conveyor systems, 779-773 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.

Where Is 779-773 Bearing Used?
You’ll often find 779-773 Bearing in agricultural machinery, such as tractors and harvesters, where its robust design withstands heavy loads and rough conditions. The standard radial clearance ensures smooth operation.

In railway applications, 779-773 Bearing is ideal for axle boxes, offering reliable performance under constant vibration. Its ABEC-1 rating provides a good balance of precision and cost-effectiveness.

Built for Heavy-Duty Use: 779-773 Bearing
779-773 Bearing excels in oil and gas equipment, handling high radial loads in pumps and compressors. The tapered rollers distribute stress evenly, reducing wear over time.

For wind turbine gearboxes, 779-773 Bearing’s dynamic load capacity ensures long-term reliability. The temperature range of -30° to 110°C makes it suitable for varying climates.

Automotive vs Aerospace: Applications of 779-773 Bearing
In automotive drivetrains, 779-773 Bearing supports high torque loads, while in aerospace ground equipment, it provides precision for landing gear mechanisms. The inch sizing caters to both industries.

For industrial fans, 779-773 Bearing’s tapered rollers manage axial and radial forces efficiently. Its steel cage ensures stability, even at moderate speeds.

Q&A

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