TS (Single Row Tapered Roller Bearings) (Imperial) 778-772

TS (Single Row Tapered Roller Bearings) (Imperial) 778-772

The 778-772 is a single row tapered roller bearing with a 3.625″ 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 various applications.

Its open design allows easy lubrication, while the steel cage ensures durability. The bearing operates smoothly in temperatures from -30°C to 110°C, suitable for demanding environments.

This model is interchangeable with Timken bearings, offering a reliable replacement option. Ideal for heavy-duty machinery like gearboxes or industrial equipment where combined loads are common.

Weighing 12.3 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 778-772
  • Brand TFL
  • Interchangeable Timken
  • Size 3.625" x 7.125" x 1.875"
  • Bore Dia 3.625"
  • 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 1.875"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.14"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 4.8"
  • Cone Backface Backing Diameter 4.37"
  • 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 778
  • 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 12.3 lb

Features

Why Choose 778-772 Bearing for Precision Tasks?

778-772 Bearing features a single row tapered roller design, ideal for handling combined radial and thrust loads.
Its chrome steel construction ensures durability and resistance to wear in demanding applications.
The bearing’s dynamic radial load capacity reaches 77,800 lbf, providing reliable performance under heavy loads.
With a standard radial clearance option, it offers flexibility for various precision tasks.

How Is 778-772 Bearing Engineered for Reliability?

778-772 Bearing is crafted with precision-machined chrome steel rollers and rings for consistent performance.
The steel cage maintains proper roller alignment, reducing friction and extending service life.
Its ABEC-1 rating ensures dependable operation in industrial applications.
The bearing operates effectively within a temperature range of -30° to 110°C.

Built for Durability: 778-772 Bearing

778-772 Bearing’s robust chrome steel construction withstands heavy loads up to 111,000 lbf static radial capacity.
The tapered roller design distributes loads evenly across the bearing surfaces.
Precision tolerances ensure smooth operation and long service life.
Its standard cup type allows for easy installation in various applications.

Application

Industrial Uses of 778-772 Bearing
The 778-772 Bearing is commonly used in heavy machinery like construction equipment and mining rigs, where its tapered roller design handles combined loads efficiently. Its chrome steel construction ensures durability even in tough working conditions.

Where Is 778-772 Bearing Used?
You’ll often find 778-772 Bearing in agricultural machinery, such as tractors and harvesters, where its robust design supports high radial and thrust loads. The inch sizing makes it a good fit for older American-made equipment.

Built for Heavy-Duty Use: 778-772 Bearing
778-772 Bearing works well in industrial gearboxes, providing reliable performance under constant stress. The open design allows for easy lubrication, extending its service life in demanding environments.

Automotive vs Aerospace: Applications of 778-772 Bearing
In automotive applications, 778-772 Bearing is used in truck wheel hubs, offering stability under heavy loads. While not typically used in aerospace, its precision makes it suitable for some ground support equipment.

Practical Applications of 778-772 Bearing
778-772 Bearing is a solid choice for conveyor systems in factories, where its tapered rollers manage both radial and axial forces. The steel cage adds extra strength, making it reliable for continuous operation.

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