TS (Single Row Tapered Roller Bearings) (Imperial) 9278-9220

The 9278-9220 is a single-row tapered roller bearing with a 2.6875″ bore and 6.375″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 79300 lbf radially and 24900 lbf thrust, making it versatile for heavy-duty use.

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

This model is interchangeable with Timken bearings, offering a reliable replacement option. Ideal for applications like industrial gearboxes or heavy machinery where robust performance is needed.

Weighing 9.9 lb, it balances strength with manageable size. Compliant with RoHS and REACH standards, it meets safety and environmental requirements.

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Description

Features

Application

Q&A

Product Parameters

Part Number 9278-9220
Brand TFL
Interchangeable Timken
Size 2.6875" x 6.375" x 1.9375"
Bore Dia 2.6875"
Bore Dia Tolerance +0.005" to 0
Outer Dia 6.375"
Outer Dia Tolerance +0.001" to 0
Cone Width 1.8125"
Cone Width Tolerance +0.003" to -0.01
Cup Width 1.25"
Cup Width Tolerance +0.002" to -0.01
Width 1.9375"
Width Tolerance +0.008" to 0
Cone Backface ToClear Radius 0.14"
Cup Backface ToClear Radius 0.130"
Cone Frontface Backing Diameter 4.29"
Cone Backface Backing Diameter 4.17"
Cup Frontface Backing Diameter 6.04"
Cup Backface Backing Diameter 5.43"
Cage Cone Frontface Clearance 0.18"
Cage Cone Backface Clearance 0.33"
Effective Center Location 0"
System of Measurement Inch
Type Bearing
Cone Part Number 9278
Cup Part Number 9220
Bearing Type Roller
Roller Bearing Type Tapered
For Load Direction Combined
Construction Single Row
Seal Type Open
Cups Type Standard
Series 9200
Ring Material Chrome Steel
Roller Material Chrome Steel
Cage Material Steel
Dynamic Radial Load 79300 lbf
Static Radial Load 74200 lbf
Dynamic Radial Rating(90 Million Revolutions)(C90) 20600 lbf
Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 24900 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 9278-9220 Bearing

9278-9220 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 79,300 lbf, making it suitable for heavy-duty applications.

The steel cage ensures proper roller alignment, reducing friction and enhancing durability.
With a standard radial clearance, it provides reliable performance in various operating conditions.

9278-9220 Bearing operates efficiently within a temperature range of -30° to 110°C.
Its tapered roller design ensures smooth operation under both radial and thrust loads.

The open seal type allows for easy lubrication, maintaining optimal performance.
Weighing 9.9 lb, it balances strength and practicality for industrial use.

Application

Industrial Uses of 9278-9220 Bearing
The 9278-9220 Bearing is a solid choice for heavy machinery, especially in construction equipment where combined loads are common. Its tapered roller design handles both radial and thrust forces efficiently.

In automotive applications, 9278-9220 Bearing works well in truck wheel hubs, providing durability under heavy loads. The chrome steel construction ensures long service life even in tough conditions.

For industrial fans and blowers, 9278-9220 Bearing offers reliable performance with its standard radial clearance. The open design simplifies lubrication, reducing maintenance downtime.

Where Is 9278-9220 Bearing Used?
You’ll often find 9278-9220 Bearing in agricultural machinery like harvesters, where its robust design handles uneven loads. The inch sizing makes it compatible with many North American equipment standards.

In conveyor systems, 9278-9220 Bearing supports heavy rollers, ensuring smooth material transport. Its steel cage provides added strength for high-load scenarios.

Built for Heavy-Duty Use: 9278-9220 Bearing
The 9278-9220 Bearing excels in mining equipment, where its tapered rollers manage extreme combined loads. The ABEC-1 rating balances precision and cost-effectiveness for industrial use.

In paper mill machinery, 9278-9220 Bearing withstands constant vibration and moisture. Its chrome steel rollers resist wear, extending bearing life in harsh environments.

Automotive vs Aerospace: Applications of 9278-9220 Bearing
In trucks and buses, 9278-9220 Bearing handles wheel loads reliably, while its inch sizing suits aftermarket repairs. For aerospace, its weight limits use to ground support equipment.

The 9278-9220 Bearing fits well in forklifts and cranes, where thrust and radial loads combine. Its standard lubrication needs make it practical for frequent maintenance schedules.