TS (Single Row Tapered Roller Bearings) (Imperial) 386AX-383A

The 386AX-383A is a single-row tapered roller bearing with a 1.875″ bore and 3.937″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 20500 lbf radially and 3210 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 ranging from -30°C to 110°C.

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

Weighing just 1.8 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe use.

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Description

Features

Application

Q&A

Product Parameters

Part Number 386AX-383A
Brand TFL
Interchangeable Timken
Size 1.875" x 3.937" x 0.8269"
Bore Dia 1.875"
Bore Dia Tolerance +0.005" to 0
Outer Dia 3.937"
Outer Dia Tolerance +0.001" to 0
Cone Width 0.864"
Cone Width Tolerance +0.003" to -0.01
Cup Width 0.7018"
Cup Width Tolerance +0.002" to -0.01
Width 0.8269"
Width Tolerance +0.008" to 0
Cone Backface ToClear Radius 0.03"
Cup Backface ToClear Radius 0.08"
Cone Frontface Backing Diameter 2.32"
Cone Backface Backing Diameter 2.2"
Cup Frontface Backing Diameter 3.68"
Cup Backface Backing Diameter 3.50"
Cage Cone Frontface Clearance 0.11"
Cage Cone Backface Clearance 0.03"
Effective Center Location -0.12"
System of Measurement Inch
Type Bearing
Cone Part Number 386AX
Cup Part Number 383A
Bearing Type Roller
Roller Bearing Type Tapered
For Load Direction Combined
Construction Single Row
Seal Type Open
Cups Type Standard
Series 385
Ring Material Chrome Steel
Roller Material Chrome Steel
Cage Material Steel
Dynamic Radial Load 20500 lbf
Static Radial Load 24100 lbf
Dynamic Radial Rating(90 Million Revolutions)(C90) 5300 lbf
Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 3210 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 1.8 lb

Features

Performance Features of 386AX-383A Bearing

386AX-383A Bearing is constructed with chrome steel rings and rollers, offering robust performance under combined loads.
Its dynamic radial load capacity reaches 20,500 lbf, making it suitable for heavy-duty applications.
The steel cage ensures proper roller alignment, enhancing durability and reducing friction.
With a temperature range of -30° to 110°C, it performs reliably in various operating conditions.

How Is 386AX-383A Bearing Engineered for Reliability?

386AX-383A Bearing features a tapered roller design, providing efficient load distribution and reduced wear.
The chrome steel construction resists wear and extends the bearing’s service life.
Its standard radial clearance ensures smooth operation, even under varying load conditions.
This bearing is interchangeable with Timken models, offering flexibility in replacements.

Built for Durability: 386AX-383A Bearing

386AX-383A Bearing’s single-row construction simplifies installation while maintaining high performance.
The steel cage and chrome steel rollers ensure long-lasting operation in demanding environments.
With a static radial load capacity of 24,100 lbf, it handles heavy loads with ease.
Its ABEC-1 rating guarantees consistent precision and reliability.

Steel vs Ceramic Bearings: Strengths of 386AX-383A Bearing

386AX-383A Bearing uses chrome steel for both rings and rollers, providing excellent strength and durability.
This material choice ensures resistance to wear and fatigue, even under high loads.
The bearing’s dynamic thrust rating of 3,210 lbf makes it versatile for various applications.
Its standard radial clearance allows for smooth operation in different conditions.

Application

Industrial Uses of 386AX-383A Bearing
386AX-383A Bearing is commonly used in heavy machinery, such as construction equipment and mining tools, where its tapered roller design handles combined loads effectively. The chrome steel construction ensures durability even in demanding environments.

In automotive applications, 386AX-383A Bearing fits well in wheel hubs and differential systems, providing reliable performance under both radial and thrust loads. Its imperial sizing makes it a preferred choice for North American vehicle models.

For industrial conveyors, 386AX-383A Bearing’s open design allows for easy lubrication, extending service life in high-load scenarios. The steel cage adds stability, reducing wear during continuous operation.

What Makes 386AX-383A Bearing a Preferred Choice?
386AX-383A Bearing excels in agricultural machinery, supporting equipment like tractors and harvesters with its robust load capacity. The ABEC-1 rating ensures consistent precision for smooth operation.

In power transmission systems, 386AX-383A Bearing’s tapered rollers reduce friction, improving efficiency in gearboxes and driveshafts. Its temperature range also makes it suitable for varying operating conditions.