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TS (Single Row Tapered Roller Bearings) (Imperial) 390-394

TS (Single Row Tapered Roller Bearings) (Imperial) 390-394

The 390-394 is a single-row tapered roller bearing with a 2.25″ bore and 4.3307″ outer diameter, crafted from durable chrome steel. It handles combined loads up to 22200 lbf radially and 3970 lbf in thrust, making it versatile for various applications.

Its open design allows for easy lubrication, while the steel cage ensures reliable performance. 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 2.1 lb, it’s sturdy yet manageable for its size. Compliant with RoHS and REACH standards, it’s a safe choice for industrial use.

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Product Parameters

  • Part Number 390-394
  • Brand TFL
  • Interchangeable Timken
  • Size 2.25" x 4.3307" x 0.8661"
  • Bore Dia 2.25"
  • 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 0.8661"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 0.8661"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.09"
  • Cup Backface ToClear Radius 0.03"
  • Cone Frontface Backing Diameter 2.6"
  • Cone Backface Backing Diameter 2.76"
  • Cup Frontface Backing Diameter 4.21"
  • 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 390
  • Cup Part Number 394
  • 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 2.1 lb

Features

Performance Features of 390-394 Bearing

390-394 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 operation in tough 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.

390-394 Bearing’s standard radial clearance allows for smooth operation under different load conditions.
Its ABEC-1 rating ensures consistent precision for general industrial applications.

The open design simplifies lubrication, making maintenance straightforward.
Weighing just 2.1 lb, it balances durability with ease of handling.

Application

Industrial Uses of 390-394 Bearing
The 390-394 Bearing is commonly used in heavy machinery, such as construction equipment and agricultural gear, where its tapered roller design handles combined loads efficiently. Its chrome steel construction ensures durability in rugged environments.

In automotive applications, 390-394 Bearing fits well in wheel hubs and differential systems, providing reliable performance under varying loads. The inch sizing makes it compatible with many North American vehicle models.

For industrial conveyor systems, 390-394 Bearing’s open design allows for easy lubrication, extending service life in high-use scenarios. The steel cage adds stability during continuous operation.

What Makes 390-394 Bearing a Preferred Choice?
The 390-394 Bearing is a go-to for machinery requiring precise load distribution, like mining drills and presses. Its ABEC-1 rating ensures consistent performance without unnecessary complexity.

In robotics, 390-394 Bearing supports articulated arms, where its tapered rollers manage both radial and thrust forces smoothly. The standard radial clearance offers flexibility for different precision needs.

Built for Heavy-Duty Use: 390-394 Bearing
You’ll often find 390-394 Bearing in forklifts and cranes, where its dynamic radial load capacity keeps operations running smoothly. The chrome steel rollers resist wear even under constant stress.

For power transmission systems, 390-394 Bearing’s effective center location helps maintain alignment in belt drives and gearboxes. The steel cage ensures rollers stay evenly spaced for balanced performance.

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