TS (Single Row Tapered Roller Bearings) (Imperial) 780W-772A

The 780W-772A is a single-row tapered roller bearing with a 4″ bore and 6.875″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 77800 lbf radially and 13300 lbf thrust, making it suitable for heavy-duty applications.

The open design allows for easy lubrication, while the steel cage ensures durability. Its standard radial clearance and ABEC-1 rating provide reliable performance in various conditions.

This bearing is interchangeable with Timken models, offering a practical replacement option. Ideal for industrial machinery or automotive systems where robust load handling is needed.

Weighing 9.9 lb, it operates efficiently in temperatures from -30°C to 110°C. Compliant with RoHS and REACH standards for safe and sustainable use.

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Description

Features

Application

Q&A

Product Parameters

Part Number 780W-772A
Brand TFL
Interchangeable Timken
Size 4" x 6.875" x 1.8751"
Bore Dia 4"
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 5.24"
Cone Backface Backing Diameter 4.69"
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 780W
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 9.9 lb

Features

Performance Features of 780W-772A Bearing

780W-772A Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 77,800 lbf, making it suitable for heavy-duty applications.
The steel cage ensures proper roller alignment, enhancing durability and reducing wear.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

How Does 780W-772A Bearing Reduce Friction?

780W-772A Bearing features a tapered roller design that minimises friction during operation.
The precision-engineered chrome steel rollers and rings ensure smooth movement under load.
Its standard radial clearance allows for optimal performance without excessive heat buildup.
Proper lubrication further reduces friction, extending the bearing’s service life.

Engineered for Precision: 780W-772A Bearing

780W-772A Bearing is designed with tight tolerances for precise performance in industrial applications.
The single row construction provides stability and accuracy under combined radial and thrust loads.
With an ABEC-1 rating, it meets strict precision standards for reliable operation.
The bearing’s effective center location ensures proper alignment in mounted assemblies.

Steel vs Ceramic Bearings: Strengths of 780W-772A Bearing

780W-772A Bearing uses chrome steel for both rings and rollers, offering excellent strength and durability.
This material choice provides better impact resistance compared to ceramic alternatives in heavy-load scenarios.
The steel construction maintains dimensional stability across its -30° to 110°C operating range.
While requiring lubrication, this design offers proven reliability in demanding industrial environments.

Application

Industrial Uses of 780W-772A Bearing
780W-772A Bearing is commonly used in heavy machinery like construction equipment and mining gear, where its tapered roller design handles combined loads efficiently. The chrome steel construction ensures durability even in tough working conditions.

What Makes 780W-772A Bearing a Preferred Choice?
In automotive applications, 780W-772A Bearing fits well in wheel hubs and differential systems, providing reliable performance under radial and thrust loads. Its inch sizing makes it compatible with many North American vehicle models.

Built for Heavy-Duty Use: 780W-772A Bearing
For industrial fans and pumps, 780W-772A Bearing offers smooth operation and long service life. The open design allows for easy lubrication, which is essential for high-speed applications.

Automotive vs Aerospace: Applications of 780W-772A Bearing
While 780W-772A Bearing is popular in truck axles and agricultural machinery, its precision also suits aerospace components like landing gear. The steel cage adds strength without compromising weight.

Key Fields for 780W-772A Bearing
In conveyor systems, 780W-772A Bearing’s ability to handle heavy loads makes it a go-to choice. The standard radial clearance ensures consistent performance across various temperatures.