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TS (Single Row Tapered Roller Bearings) (Imperial) 378A-374

TS (Single Row Tapered Roller Bearings) (Imperial) 378A-374

The 378A-374 is a single-row tapered roller bearing with a 1.968″ bore and 3.6718″ outer diameter, crafted from sturdy chrome steel. It manages combined loads up to 19800 lbf radially and 2970 lbf thrust, 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 1.3 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe use.

The 378A-374 features a standard radial clearance, with options for C3, C4, or C5 if needed. Its tapered roller design provides reliable performance under varying load conditions.

The bearing’s effective center location at -0.15″ ensures stable alignment in assemblies. The chrome steel rollers and rings offer long-lasting wear resistance.

With an ABEC-1 rating, it balances precision and affordability. Suitable for industrial equipment or vehicle axles requiring dependable load handling.

Maintenance is straightforward thanks to its open structure, allowing regular greasing. A solid choice for engineers seeking a durable, versatile bearing.

This tapered roller bearing is designed for combined radial and thrust loads, with a dynamic radial rating of 5120 lbf at 90 million revolutions. Its single-row construction simplifies installation and alignment.

The steel cage keeps rollers securely spaced, reducing friction. The bearing’s dimensions (1.968″ x 3.6718″ x 0.8126″) make it compact for its load capacity.

Interchangeable with Timken’s 378A-374, it’s a reliable option for repairs or upgrades. Works well in gearboxes, conveyors, or other high-load scenarios.

RoHS and REACH compliance ensures it meets environmental standards. A practical, no-fuss solution for industrial applications.

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Product Parameters

  • Part Number 378A-374
  • Brand TFL
  • Interchangeable Timken
  • Size 1.968" x 3.6718" x 0.8126"
  • Bore Dia 1.968"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.6718"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 0.875"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.5938"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 0.8126"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.09"
  • Cup Backface ToClear Radius 0.050"
  • Cone Frontface Backing Diameter 2.2"
  • Cone Backface Backing Diameter 2.36"
  • Cup Frontface Backing Diameter 3.50"
  • Cup Backface Backing Diameter 3.35"
  • 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 374
  • 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 1.3 lb

Features

Performance Features of 378A-374 Bearing

378A-374 Bearing is constructed 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 demanding conditions.

The steel cage maintains proper roller alignment, reducing friction and extending operational life.
With a temperature range of -30° to 110°C, it performs well in various environments.

378A-374 Bearing’s standard radial clearance allows for smooth operation under different load conditions.
Its ABEC-1 rating ensures consistent precision for industrial applications.

Application

Industrial Uses of 378A-374 Bearing
378A-374 Bearing is commonly used in heavy machinery, such as construction equipment and agricultural gear, where its tapered roller design handles combined loads effectively. The chrome steel construction ensures durability even in demanding environments.

Where Is 378A-374 Bearing Used?
You’ll often find 378A-374 Bearing in automotive drivetrains, particularly in wheel hubs and differentials, thanks to its ability to manage both radial and thrust loads. Its inch sizing makes it a fit for many North American vehicle models.

Built for Heavy-Duty Use: 378A-374 Bearing
In industrial fans and pumps, 378A-374 Bearing provides reliable performance under high loads and varying speeds. The open design allows for easy lubrication, extending its service life.

Automotive vs Aerospace: Applications of 378A-374 Bearing
While 378A-374 Bearing excels in automotive applications like axles, it’s also suitable for aerospace ground support equipment. Its steel cage and chrome rollers offer a balance of strength and precision.

Perfect Fit for Automation: 378A-374 Bearing
378A-374 Bearing works well in conveyor systems and robotic arms, where smooth rotation under load is essential. The standard radial clearance ensures consistent performance in automated setups.

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