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TS (Single Row Tapered Roller Bearings) (Imperial) 397-394

TS (Single Row Tapered Roller Bearings) (Imperial) 397-394

The 397-394 is a single-row tapered roller bearing with a 2.36″ bore and 4.33″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 22200 lbf radially and 3970 lbf thrust-wise, suitable for demanding 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, making it a practical choice for replacements. Ideal for heavy-duty machinery or automotive systems where combined loads are common.

Weighing just 2lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe use.

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Product Parameters

  • Part Number 397-394
  • Brand TFL
  • Interchangeable Timken
  • Size 2.3622" x 4.3307" x 0.8661"
  • Bore Dia 2.3622"
  • 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 0.03"
  • Cup Backface ToClear Radius 0.03"
  • Cone Frontface Backing Diameter 2.68"
  • Cone Backface Backing Diameter 2.72"
  • 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 397
  • 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 lb

Features

Performance Features of 397-394 Bearing

397-394 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 22,200 lbf, making it suitable for demanding industrial applications.
The steel cage ensures proper roller alignment, reducing friction and enhancing durability.
With a temperature range of -30° to 110°C, it performs reliably in various operating conditions.

How Is 397-394 Bearing Engineered for Reliability?

397-394 Bearing features a single-row tapered roller design, optimised for handling both radial and thrust loads.
The chrome steel construction provides excellent wear resistance, extending its service life.
Its standard radial clearance ensures smooth operation, while the open design simplifies lubrication.
This bearing is interchangeable with Timken models, offering flexibility in replacements.

Built for Durability: 397-394 Bearing

397-394 Bearing’s robust chrome steel components withstand heavy loads up to 28,100 lbf static radial capacity.
The tapered roller design distributes loads evenly, reducing stress on individual components.
Its steel cage maintains precise roller positioning, even at high speeds.
With ABEC-1 precision rating, it delivers consistent performance in various applications.

Steel vs Ceramic Bearings: Strengths of 397-394 Bearing

397-394 Bearing uses chrome steel for both rings and rollers, providing excellent strength-to-weight ratio.
This material choice ensures better impact resistance compared to ceramic alternatives in heavy-duty applications.
The steel cage offers reliable performance across its -30° to 110°C operating range.
Its 90 million revolutions dynamic rating demonstrates long-term reliability under proper maintenance.

Application

Industrial Uses of 397-394 Bearing
The 397-394 Bearing is a reliable choice for heavy machinery, especially in construction equipment where combined loads are common. Its tapered roller design handles both radial and thrust forces efficiently.

In automotive applications, 397-394 Bearing works well in wheel hubs and differential systems, thanks to its durable chrome steel construction. The inch sizing makes it a good fit for American-made vehicles.

For industrial fans and pumps, 397-394 Bearing’s open design allows for easy lubrication, ensuring long service life. The steel cage adds extra strength in high-speed scenarios.

Why Is 397-394 Bearing Essential in Machinery?
397-394 Bearing excels in agricultural machinery, where dirt and debris are common. Its robust design resists wear, even in harsh conditions.

The bearing’s standard radial clearance makes it versatile for various industrial uses. It’s often found in conveyor systems and gearboxes.

Built for Heavy-Duty Use: 397-394 Bearing
397-394 Bearing is ideal for mining equipment, handling heavy loads without compromising performance. The tapered rollers distribute stress evenly.

In forestry machinery, 397-394 Bearing’s temperature range ensures reliability in extreme conditions. Its ABEC-1 rating balances precision and cost-effectiveness.

Automotive vs Aerospace: Applications of 397-394 Bearing
In automotive settings, 397-394 Bearing supports drivetrain components, offering smooth operation. Its inch measurements align with imperial system requirements.

For aerospace ground equipment, 397-394 Bearing provides dependable performance in maintenance tools. The chrome steel rollers resist corrosion and wear.

Q&A

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