TS (Single Row Tapered Roller Bearings) (Imperial) 321-313

The 321-313 is a single row tapered roller bearing with a 1.0148″ bore and 2.8346″ outer diameter, crafted from robust chrome steel. It handles combined loads up to 16800 lbf and operates smoothly in temperatures from -30°C to 110°C.

Its open design allows easy lubrication, while the steel cage ensures durability. The bearing is interchangeable with Timken models, making it a practical choice for replacements.

With standard radial clearance and ABEC-1 rating, it offers reliable performance for various applications. Ideal for use in gearboxes, axles, or industrial machinery where combined loads are common.

Weighing just 1 lb, it’s lightweight yet sturdy, compliant with RoHS and REACH standards for safe use.

Get A Free Quote

Description

Features

Application

Q&A

Product Parameters

Part Number 321-313
Brand TFL
Interchangeable Timken
Size 1.0148" x 2.8346" x 0.7481"
Bore Dia 1.0148"
Bore Dia Tolerance +0.005" to 0
Outer Dia 2.8346"
Outer Dia Tolerance +0.001" to 0
Cone Width 0.873"
Cone Width Tolerance +0.003" to -0.01
Cup Width 0.748"
Cup Width Tolerance +0.002" to -0.01
Width 0.7481"
Width Tolerance +0.008" to 0
Cone Backface ToClear Radius 0.03"
Cup Backface ToClear Radius 0.08"
Cone Frontface Backing Diameter 1.3"
Cone Backface Backing Diameter 1.34"
Cup Frontface Backing Diameter 2.72"
Cup Backface Backing Diameter 2.56"
Cage Cone Frontface Clearance 0.04"
Cage Cone Backface Clearance 0.01"
Effective Center Location -0.27"
System of Measurement Inch
Type Bearing
Cone Part Number 321
Cup Part Number 313
Bearing Type Roller
Roller Bearing Type Tapered
For Load Direction Combined
Construction Single Row
Seal Type Open
Cups Type Standard
Series 315
Ring Material Chrome Steel
Roller Material Chrome Steel
Cage Material Steel
Dynamic Radial Load 16800 lbf
Static Radial Load 16800 lbf
Dynamic Radial Rating(90 Million Revolutions)(C90) 4370 lbf
Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 1880 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 1 lb

Features

Performance Features of 321-313 Bearing

321-313 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 16,800 lbf, ensuring reliable performance in various applications.

The steel cage maintains roller alignment, reducing friction and extending operational life.
With a temperature range of -30° to 110°C, it performs well in diverse environments.

321-313 Bearing requires lubrication but is designed for easy maintenance.
Its standard radial clearance options provide flexibility for different installation needs.

Application

Industrial Uses of 321-313 Bearing
The 321-313 Bearing is commonly used in heavy machinery like construction equipment and agricultural gear, where its tapered roller design handles combined loads efficiently. Its chrome steel construction ensures durability even in tough working conditions.

In automotive applications, 321-313 Bearing fits well in wheel hubs and differential systems, providing reliable performance under varying loads. The inch sizing makes it compatible with many American-made vehicles.

For industrial conveyor systems, 321-313 Bearing’s open design allows for easy lubrication, extending its service life in high-use environments. The steel cage adds extra strength, making it suitable for continuous operation.

Where Is 321-313 Bearing Used?
You’ll often find 321-313 Bearing in mining equipment, where its ability to handle radial and thrust loads is crucial. The standard radial clearance ensures smooth operation even under heavy stress.

In power transmission systems, 321-313 Bearing supports shafts and gears, thanks to its robust design. The ABEC-1 rating provides a good balance of precision and affordability for general industrial use.

Built for Heavy-Duty Use: 321-313 Bearing
The 321-313 Bearing excels in applications like forklifts and cranes, where its dynamic load capacity keeps things running smoothly. Its temperature range also makes it suitable for both hot and cold environments.

In pulp and paper machinery, 321-313 Bearing’s steel rollers withstand constant friction and high loads. The easy lubrication feature helps maintain performance over long periods.

Automotive vs Aerospace: Applications of 321-313 Bearing
In automotive settings, 321-313 Bearing is ideal for drivetrain components, offering reliable performance under combined loads. Its inch measurements align with many standard vehicle designs.

For aerospace ground equipment, 321-313 Bearing provides sturdy support in landing gear test rigs. The chrome steel material ensures it can handle frequent use without compromising performance.