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TS (Single Row Tapered Roller Bearings) (Imperial) 399A-394XS

TS (Single Row Tapered Roller Bearings) (Imperial) 399A-394XS

The 399A-394XS is a single-row tapered roller bearing with a 2.6875″ bore and 4.3301″ outer diameter, crafted from durable chrome steel. It handles combined loads up to 22200 lbf radially and 3970 lbf thrust, making it versatile for various applications.

Its open design allows easy lubrication, while the steel cage ensures reliable performance under stress. The bearing operates smoothly in temperatures ranging from -30°C to 110°C.

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

Weighing 1.7 lb, it’s sturdy yet manageable for its size. Compliant with RoHS and REACH standards, it’s a safe and dependable choice for industrial use.

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Product Parameters

  • Part Number 399A-394XS
  • Brand TFL
  • Interchangeable Timken
  • Size 2.6875" x 4.3301" x 0.935"
  • Bore Dia 2.6875"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 4.3301"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 0.866"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.748"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 0.935"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.09"
  • Cup Backface ToClear Radius 0.02"
  • Cone Frontface Backing Diameter 3.54"
  • Cone Backface Backing Diameter 3.07"
  • Cup Frontface Backing Diameter 4.11"
  • Cup Backface Backing Diameter 3.98"
  • Cage Cone Frontface Clearance 0.11"
  • Cage Cone Backface Clearance 0.05"
  • Effective Center Location -0.03"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 399A
  • Cup Part Number 394XS
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 395
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 22200 lbf
  • Static Radial Load 28100 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 5760 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 3970 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 1.7 lb

Features

Performance Features of 399A-394XS Bearing

399A-394XS Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 22,200 lbf, ensuring reliable performance in demanding conditions.

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

399A-394XS Bearing’s standard radial clearance allows for smooth operation under different load conditions.
Its ABEC-1 rating ensures consistent precision for industrial applications.

Application

Industrial Uses of 399A-394XS Bearing
399A-394XS Bearing is commonly used in heavy machinery like construction equipment and agricultural gear, where its tapered roller design handles combined loads effectively. The chrome steel construction ensures durability in rugged environments.

What Makes 399A-394XS Bearing a Preferred Choice?
In automotive applications, 399A-394XS Bearing fits well in wheel hubs and differential systems, thanks to its precise inch sizing and reliable load capacity. Its open design simplifies lubrication and maintenance.

Built for Heavy-Duty Use: 399A-394XS Bearing
For industrial conveyors and mining equipment, 399A-394XS Bearing offers robust performance under high radial and thrust loads. The steel cage adds stability, making it suitable for continuous operation.

Automotive vs Aerospace: Applications of 399A-394XS Bearing
While 399A-394XS Bearing excels in truck axles and off-road vehicles, its precision also suits aerospace landing gear components. The ABEC-1 rating ensures consistent performance in both sectors.

Perfect Fit for Automation: 399A-394XS Bearing
In robotic arms and automated assembly lines, 399A-394XS Bearing provides smooth motion control with its tapered roller design. The standard radial clearance adapts well to varying operational demands.

Q&A

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