TS (Single Row Tapered Roller Bearings) (Imperial) 778-773

TS (Single Row Tapered Roller Bearings) (Imperial) 778-773

The 778-773 is a single-row tapered roller bearing with a 3.625″ bore and 7.0866″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 77800 lbf radially and 13300 lbf thrust, making it versatile for heavy-duty use.

Its open design allows easy lubrication, while the steel cage ensures durability under stress. 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 reliable replacement option. Ideal for applications like truck axles or heavy machinery where combined loads are common.

Weighing 12.2 lb, it’s robust 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 778-773
  • Brand TFL
  • Interchangeable Timken
  • Size 3.625" x 7.0866" x 1.8898"
  • Bore Dia 3.625"
  • 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 4.8"
  • Cone Backface Backing Diameter 4.37"
  • 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 778
  • 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 12.2 lb

Features

How Does 778-773 Bearing Handle Combined Loads?

778-773 Bearing is built with chrome steel rings and rollers, offering strong resistance to both radial and thrust loads.
Its dynamic radial load capacity reaches 77,800 lbf, ensuring reliable performance in demanding conditions.
The steel cage maintains roller alignment, reducing friction and extending service life.
With a temperature range of -30° to 110°C, it performs well in various environments.

What Makes 778-773 Bearing Suitable for Heavy-Duty Applications?

778-773 Bearing features a single-row tapered roller design, ideal for handling combined loads efficiently.
The chrome steel construction provides durability, while the standard radial clearance ensures smooth operation.
Its static radial load capacity of 111,000 lbf makes it suitable for heavy-duty machinery.
The open seal type allows for easy lubrication, maintaining optimal performance.

Designed for Durability: 778-773 Bearing

778-773 Bearing’s chrome steel rollers and rings enhance its resistance to wear and tear.
The tapered roller design distributes loads evenly, reducing stress on individual components.
With a dynamic thrust rating of 13,300 lbf, it excels in applications requiring high load capacity.
The steel cage ensures stability, even under heavy loads and high speeds.

Application

Industrial Uses of 778-773 Bearing
The 778-773 Bearing is widely used in heavy machinery, such as mining equipment and construction gear, where its tapered roller design handles combined loads efficiently. Its chrome steel construction ensures durability even in demanding environments.

Where Is 778-773 Bearing Used?
You’ll often find the 778-773 Bearing in agricultural machinery, supporting axles and gearboxes that require reliable performance under heavy loads. Its inch sizing makes it a common choice for North American equipment.

Built for Heavy-Duty Use: 778-773 Bearing
This bearing excels in industrial fans and pumps, where its open design allows for easy lubrication and maintenance. The steel cage adds extra strength, making it suitable for high-load applications.

Automotive vs Aerospace: Applications of 778-773 Bearing
In automotive systems, the 778-773 Bearing is ideal for wheel hubs and transmissions, offering smooth operation. While not typically used in aerospace, its precision makes it a solid choice for ground support equipment.

Perfect Fit for Automation: 778-773 Bearing
The 778-773 Bearing works well in conveyor systems and automated production lines, where its tapered rollers provide stability. Its standard radial clearance ensures consistent performance over time.

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