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TS (Single Row Tapered Roller Bearings) (Imperial) 378A-372A

TS (Single Row Tapered Roller Bearings) (Imperial) 378A-372A

The 378A-372A is a single-row tapered roller bearing with a 1.968″ bore and 3.8125″ outer diameter, crafted from durable chrome steel. It handles combined loads up to 19800 lbf radially and 2970 lbf thrust, making it versatile for various applications.

Its open design allows 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 1.6 lb, it’s robust 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 378A-372A
  • Brand TFL
  • Interchangeable Timken
  • Size 1.968" x 3.8125" x 0.875"
  • Bore Dia 1.968"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.8125"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 0.875"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.75"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 0.875"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.09"
  • Cup Backface ToClear Radius 0.06"
  • Cone Frontface Backing Diameter 2.2"
  • Cone Backface Backing Diameter 2.36"
  • Cup Frontface Backing Diameter 3.56"
  • Cup Backface Backing Diameter 3.39"
  • Cage Cone Frontface Clearance 0.09"
  • Cage Cone Backface Clearance 0.01"
  • Effective Center Location -0.15"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 378A
  • Cup Part Number 372A
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 375
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 19800 lbf
  • Static Radial Load 22700 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 5120 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 2970 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 378A-372A Bearing

378A-372A Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 19,800 lbf, ensuring reliable performance in various applications.
The steel cage maintains roller alignment, reducing wear and extending operational life.
With a standard radial clearance, it provides flexibility for different installation needs.

How Is 378A-372A Bearing Engineered for Reliability?

378A-372A Bearing features a single-row tapered roller design, optimised for handling both radial and thrust loads.
The chrome steel construction enhances durability, even in demanding conditions.
Its dynamic thrust rating of 2,970 lbf ensures smooth operation under heavy loads.
The open seal type allows for easy lubrication, maintaining performance over time.

Built for Durability: 378A-372A Bearing

378A-372A Bearing’s chrome steel components provide excellent resistance to wear and fatigue.
The tapered roller design distributes loads evenly, improving longevity and reliability.
With a temperature range of -30° to 110°C, it performs well in various environments.
The standard radial clearance option makes it versatile for different applications.

Steel vs Ceramic Bearings: Strengths of 378A-372A Bearing

378A-372A Bearing uses chrome steel for both rings and rollers, offering a balance of strength and affordability.
Its dynamic radial load rating of 19,800 lbf ensures reliable performance in heavy-duty applications.
The steel cage design keeps rollers in place, reducing friction and wear.
This makes it a practical choice for industrial uses where cost and durability are key factors.

Application

Industrial Uses of 378A-372A Bearing
The 378A-372A Bearing is commonly used in heavy machinery, such as construction equipment and mining tools, where its tapered roller design handles combined loads effectively. Its chrome steel construction ensures durability in demanding environments.

Where Is 378A-372A Bearing Used?
You’ll often find the 378A-372A Bearing in automotive applications like truck wheel hubs, where its ability to manage radial and thrust loads keeps things running smoothly. The inch sizing makes it a good fit for many North American vehicles.

Built for Heavy-Duty Use: 378A-372A Bearing
In industrial gearboxes, the 378A-372A Bearing provides reliable performance thanks to its steel cage and standard radial clearance. It’s a solid choice for equipment that operates under varying load conditions.

Automotive vs Aerospace: Applications of 378A-372A Bearing
While the 378A-372A Bearing excels in automotive systems like axles, it’s also found in some aerospace ground support equipment. Its ABEC-1 rating ensures consistent performance without over-engineering for less critical applications.

Perfect Fit for Automation: 378A-372A Bearing
The 378A-372A Bearing works well in conveyor systems and other automated machinery, where its open design allows for easy lubrication. The tapered rollers help maintain alignment even under uneven loads.

Q&A

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