TS (Single Row Tapered Roller Bearings) (Imperial) 27687-27620RB

The 27687-27620RB is a single-row tapered roller bearing with a 3.25″ bore and 4.9375″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 26300 lbf radially and 4860 lbf thrust, making it a versatile choice.

Its open design allows for easy lubrication, while the steel cage ensures durability under heavy use. 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 2.3 lb, it balances strength and manageability. 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 27687-27620RB
Brand TFL
Interchangeable Timken
Size 3.25" x 4.9375" x 1.0001"
Bore Dia 3.25"
Bore Dia Tolerance +0.001" to 0
Outer Dia 4.9375"
Outer Dia Tolerance +0.001" to 0
Cone Width 1"
Cone Width Tolerance +0.003" to -0.01
Cup Width 0.7813"
Cup Width Tolerance +0.002" to -0.01
Width 1.0001"
Width Tolerance +0.008" to 0
Cone Backface ToClear Radius 0.14"
Cup Backface ToClear Radius 0.06"
Cone Frontface Backing Diameter 4.29"
Cone Backface Backing Diameter 3.78"
Cup Frontface Backing Diameter 4.75"
Cup Backface Backing Diameter 4.53"
Cage Cone Frontface Clearance 0.09"
Cage Cone Backface Clearance 0.05"
Effective Center Location 0.02"
System of Measurement Inch
Type Bearing
Cone Part Number 27687
Cup Part Number 27620RB
Bearing Type Roller
Roller Bearing Type Tapered
For Load Direction Combined
Construction Single Row
Seal Type Open
Cups Type Standard
Series 27600
Ring Material Chrome Steel
Roller Material Chrome Steel
Cage Material Steel
Dynamic Radial Load 26300 lbf
Static Radial Load 39900 lbf
Dynamic Radial Rating(90 Million Revolutions)(C90) 6830 lbf
Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 4860 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 2.3 lb

Features

How Is 27687-27620RB Bearing Engineered for Reliability?

27687-27620RB Bearing features chrome steel rings and rollers, ensuring strength and durability under combined loads.
Its dynamic radial load capacity reaches 26,300 lbf, making it suitable for heavy-duty applications.

The tapered roller design distributes loads evenly, reducing stress and extending service life.
With a standard radial clearance, it offers flexibility for various operational requirements.

27687-27620RB Bearing operates efficiently within a temperature range of -30° to 110°C.
Its steel cage maintains roller alignment, ensuring smooth and reliable performance.

Application

Industrial Uses of 27687-27620RB Bearing
27687-27620RB Bearing is commonly used in heavy machinery like construction equipment and agricultural vehicles, where its tapered roller design handles combined loads effectively. The chrome steel construction ensures durability even in tough working conditions.

What Makes 27687-27620RB Bearing a Preferred Choice?
In automotive applications, 27687-27620RB Bearing fits well in wheel hubs and differential systems, providing reliable performance under varying loads. Its imperial sizing makes it a go-to for older or custom-built vehicles.

Built for Heavy-Duty Use: 27687-27620RB Bearing
For industrial conveyor systems, 27687-27620RB Bearing offers smooth operation and long service life. The open design allows for easy lubrication, reducing downtime in high-demand environments.

Automotive vs Aerospace: Applications of 27687-27620RB Bearing
While 27687-27620RB Bearing excels in automotive drivetrains, its precision also suits aerospace landing gear components. The ABEC-1 rating ensures consistent performance in both fields.

Perfect Fit for Automation: 27687-27620RB Bearing
In robotic arms and automated assembly lines, 27687-27620RB Bearing provides the necessary stability for precise movements. Its steel cage enhances durability in continuous operation scenarios.