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

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

The 399AS-394A is a single-row tapered roller bearing with a 2.6875″ bore and 4.3307″ outer diameter, crafted from sturdy 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 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 systems where combined loads are common.

Weighing 1.6 lb, it balances strength and manageability. Compliant with RoHS and REACH standards, it’s a safe choice for diverse environments.

The 399AS-394A features standard radial clearance, with options for C3/C4/C5 if needed. Its tapered roller design ensures even load distribution, reducing wear over time.

Simple to maintain, it requires regular lubrication for optimal performance. Suitable for moderate-speed applications, it’s a practical pick for engineers and maintenance teams alike.

With an ABEC-1 rating, it offers dependable precision without overcomplicating your setup. A solid choice for gearboxes, axles, or conveyor systems.

Its cone and cup design allows for easy installation and adjustment. The chrome steel rollers provide excellent resistance to wear, even under heavy loads.

Effective for both radial and thrust forces, it’s adaptable to many mechanical setups. The standard cup type ensures compatibility with common housing designs.

At 0.8661″ wide, it fits snugly in compact spaces without sacrificing performance. A reliable component for long-term use in demanding conditions.

The bearing’s effective center location (-0.03″) helps maintain alignment under load. The steel cage keeps rollers securely spaced, preventing slippage or misalignment.

With a dynamic radial rating of 5760 lbf at 90 million revolutions, it’s built to last. The tapered design naturally guides lubrication across all contact surfaces.

Perfect for agricultural equipment or construction machinery where durability matters. Its imperial sizing makes it straightforward to replace in existing systems.

Clear chamfer dimensions (0.2″ cone, 0.05″ cup) prevent installation issues. Backing diameters ensure proper seating in housings for stable operation.

Cage clearances (0.11″ front, 0.05″ back) allow smooth roller movement. The Series 395 design prioritizes functionality over unnecessary complexity.

A workhorse bearing for everyday industrial use, offering good value without cutting corners. Meets essential standards while focusing on practical performance.

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Product Parameters

  • Part Number 399AS-394A
  • Brand TFL
  • Interchangeable Timken
  • Size 2.6875" x 4.3307" x 0.8661"
  • Bore Dia 2.6875"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 4.3307"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 0.866"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.7411"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 0.8661"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.2"
  • Cup Backface ToClear Radius 0.050"
  • Cone Frontface Backing Diameter 3.54"
  • Cone Backface Backing Diameter 3.27"
  • Cup Frontface Backing Diameter 4.15"
  • 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 399AS
  • Cup Part Number 394A
  • 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 1.6 lb

Features

Performance Features of 399AS-394A Bearing

399AS-394A 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 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.

399AS-394A Bearing requires lubrication, which enhances its durability and efficiency.
The standard radial clearance options provide flexibility for different installation needs.

Application

Industrial Uses of 399AS-394A Bearing
The 399AS-394A 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 in tough conditions.

Where Is 399AS-394A Bearing Used?
You’ll often find 399AS-394A Bearing in automotive applications, particularly in wheel hubs and differential systems, where its robust design supports high radial and thrust loads. The inch sizing makes it a fit for many US-made vehicles.

Built for Heavy-Duty Use: 399AS-394A Bearing
In industrial settings, 399AS-394A Bearing excels in conveyor systems and gearboxes, thanks to its open design and steel cage. The standard radial clearance offers flexibility for various operational needs.

Automotive vs Aerospace: Applications of 399AS-394A Bearing
While 399AS-394A Bearing is popular in automotive drivetrains, its precision also suits aerospace components like landing gear systems. The ABEC-1 rating ensures reliable performance in both fields.

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