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TS (Single Row Tapered Roller Bearings) (Imperial) 397-393A

TS (Single Row Tapered Roller Bearings) (Imperial) 397-393A

The 397-393A is a single-row tapered roller bearing with a 2.36″ bore and 4.44″ outer diameter, built 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. The bearing operates smoothly in temperatures from -30°C to 110°C, suitable for demanding environments.

This model is interchangeable with Timken bearings, offering a reliable replacement option. Ideal for gearboxes, axles, or industrial machinery where combined loads are common.

Weighing 2lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it meets safety and environmental requirements.

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Product Parameters

  • Part Number 397-393A
  • Brand TFL
  • Interchangeable Timken
  • Size 2.3622" x 4.4375" x 0.8751"
  • Bore Dia 2.3622"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 4.4375"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 0.866"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.625"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 0.8751"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.03"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 2.68"
  • Cone Backface Backing Diameter 2.72"
  • Cup Frontface Backing Diameter 4.15"
  • Cup Backface Backing Diameter 3.94"
  • 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 397
  • Cup Part Number 393A
  • 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 lb

Features

Performance Features of 397-393A Bearing

397-393A 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.

How Is 397-393A Bearing Engineered for Reliability?

397-393A Bearing features a single-row tapered roller design, ideal for handling combined radial and thrust loads.
The chrome steel construction enhances durability, while the standard radial clearance ensures smooth operation.
Its dynamic thrust rating of 3,970 lbf makes it suitable for demanding industrial uses.
The open seal type allows for easy lubrication, maintaining optimal performance over time.

Designed for Durability: 397-393A Bearing

397-393A Bearing’s tapered roller design provides excellent load distribution, reducing wear.
The chrome steel components resist wear and corrosion, ensuring a long service life.
With a static radial load capacity of 28,100 lbf, it handles heavy-duty applications with ease.
The ABEC-1 rating ensures consistent performance for precision tasks.

Steel vs Ceramic Bearings: Strengths of 397-393A Bearing

397-393A Bearing uses chrome steel for both rollers and rings, offering a balance of strength and cost-efficiency.
Its dynamic radial rating of 5,760 lbf at 90 million revolutions highlights its long-term reliability.
The steel cage ensures proper roller alignment, reducing maintenance needs.
This bearing is a practical choice for applications requiring durability and consistent performance.

Application

Industrial Uses of 397-393A Bearing
The 397-393A Bearing is commonly used in heavy machinery like construction equipment and agricultural gear, where its tapered roller design handles combined loads effectively. Its chrome steel construction ensures durability even in demanding environments.

Where Is 397-393A Bearing Used?
You’ll often find 397-393A Bearing in automotive applications, particularly in wheel hubs and differential systems. Its inch sizing makes it a straightforward replacement for Timken equivalents in many US-made vehicles.

Built for Heavy-Duty Use: 397-393A Bearing
397-393A Bearing excels in industrial fans and pumps, where its standard radial clearance allows for smooth operation under varying temperatures. The steel cage adds extra resilience against wear over time.

Automotive vs Aerospace: Applications of 397-393A Bearing
In automotive settings, 397-393A Bearing supports high radial loads in drivetrains, while its precision makes it suitable for certain aerospace components. The ABEC-1 rating ensures reliable performance without over-engineering.

Key Fields for 397-393A Bearing
397-393A Bearing is a go-to choice for mining equipment, thanks to its dynamic radial load capacity of 22,200 lbf. The open design simplifies lubrication, which is crucial in dusty or high-heat conditions.

Q&A

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