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TS (Single Row Tapered Roller Bearings) (Imperial) 777-772

TS (Single Row Tapered Roller Bearings) (Imperial) 777-772

The 777-772 is a single row tapered roller bearing with a 3.75″ bore and 7.125″ 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 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 combined loads are common.

Weighing 11.7 lb, it’s built to last with standard radial clearance options. Compliant with RoHS and REACH standards for safe and eco-friendly use.

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Product Parameters

  • Part Number 777-772
  • Brand TFL
  • Interchangeable Timken
  • Size 3.75" x 7.125" x 1.8751"
  • Bore Dia 3.75"
  • Bore Dia Tolerance +0.001" to 0
  • Outer Dia 7.125"
  • 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 0.380"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 4.92"
  • Cone Backface Backing Diameter 4.96"
  • Cup Frontface Backing Diameter 6.65"
  • Cup Backface Backing Diameter 6.34"
  • 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 777
  • Cup Part Number 772
  • 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 11.7 lb

Features

How Is 777-772 Bearing Engineered for Reliability?

777-772 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 temperature range of -30° to 110°C, it performs reliably in various environments.

777-772 Bearing’s standard radial clearance and ABEC-1 rating provide consistent precision.
Its single-row tapered design offers efficient load distribution and smooth operation.

Application

Industrial Uses of 777-772 Bearing
The 777-772 Bearing is widely used in heavy machinery, such as construction equipment and mining tools, where its tapered roller design handles combined loads efficiently. Its chrome steel construction ensures durability even in demanding environments.

In automotive applications, 777-772 Bearing is commonly found in wheel hubs and differential systems, providing reliable performance under high radial and thrust loads. The inch sizing makes it compatible with many American-made vehicles.

For industrial conveyor systems, 777-772 Bearing’s open design allows for easy lubrication, extending its service life in continuous operation. The steel cage adds extra strength, making it suitable for high-load scenarios.

Where Is 777-772 Bearing Used?
You’ll often spot 777-772 Bearing in agricultural machinery, like tractors and harvesters, where its robust design handles rough terrain and heavy loads. The ABEC-1 rating ensures consistent performance without over-engineering.

In manufacturing plants, 777-772 Bearing supports rotating equipment like gearboxes and pulleys, thanks to its balanced load distribution. The standard radial clearance option makes it versatile for various industrial settings.

Built for Heavy-Duty Use: 777-772 Bearing
The 777-772 Bearing excels in forestry equipment, such as log splitters and sawmills, where its tapered rollers manage both radial and axial forces. Its temperature range (-30° to 110°C) suits outdoor operations.

For railway applications, 777-772 Bearing’s high dynamic radial load capacity (77,800 lbf) ensures smooth performance in freight car axles. The steel cage and chrome steel rollers enhance longevity under constant vibration.

Automotive vs Aerospace: Applications of 777-772 Bearing
In automotive systems, 777-772 Bearing is ideal for truck transmissions, balancing durability and cost-effectiveness. Its inch measurements align with standard US automotive specs.

For aerospace ground equipment, 777-772 Bearing handles heavy loads in aircraft tugs and loading platforms. While not for in-flight use, its reliability keeps ground operations running smoothly.

Q&A

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