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TS (Single Row Tapered Roller Bearings) (Imperial) 3778-3726

TS (Single Row Tapered Roller Bearings) (Imperial) 3778-3726

The 3778-3726 is a single-row tapered roller bearing with a 1.875″ bore and 3.75″ outer diameter, crafted from sturdy chrome steel. It manages combined loads up to 27500 lbf radially and 4120 lbf in thrust, suitable for demanding applications.

Its open design and steel cage ensure durability, while the tapered rollers provide smooth operation under heavy loads. The bearing requires regular lubrication and performs well in temperatures from -30°C to 110°C.

This model is interchangeable with Timken bearings, making it a practical choice for replacements. Ideal for use in gearboxes, wheel hubs, or industrial machinery where combined loads are common.

Weighing 2.1 lb, it offers a balance of strength and manageability. Compliant with RoHS and REACH standards, it meets essential safety and environmental requirements.

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Product Parameters

  • Part Number 3778-3726
  • Brand TFL
  • Interchangeable Timken
  • Size 1.875" x 3.75" x 1.1876"
  • Bore Dia 1.875"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.75"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 1.193"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.9375"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.1876"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.25"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 2.17"
  • Cone Backface Backing Diameter 2.64"
  • Cup Frontface Backing Diameter 3.54"
  • Cup Backface Backing Diameter 3.27"
  • Cage Cone Frontface Clearance 0.06"
  • Cage Cone Backface Clearance 0.06"
  • Effective Center Location -0.32"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 3778
  • Cup Part Number 3726
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 3700
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 27500 lbf
  • Static Radial Load 34300 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 7120 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 4120 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 3778-3726 Bearing

3778-3726 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 27,500 lbf, making it suitable for heavy-duty applications.
The steel cage maintains roller alignment, ensuring smooth operation and reduced wear.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

How Is 3778-3726 Bearing Engineered for Reliability?

3778-3726 Bearing features a tapered roller design, providing efficient load distribution and durability.
The chrome steel construction enhances its resistance to wear, extending its service life.
Its standard radial clearance allows for flexibility in different applications.
With an ABEC-1 rating, it balances precision and cost-effectiveness.

Designed for Durability: 3778-3726 Bearing

3778-3726 Bearing’s single-row construction ensures stability and reliability under combined loads.
The steel cage and chrome steel rollers work together to minimise friction and noise.
Its dynamic thrust rating of 4,120 lbf makes it versatile for various industrial uses.
The bearing requires lubrication, ensuring smooth operation over time.

Steel vs Ceramic Bearings: Strengths of 3778-3726 Bearing

3778-3726 Bearing uses chrome steel for both rings and rollers, offering excellent strength and durability.
This material choice provides a cost-effective solution without compromising performance.
The bearing’s static radial load capacity of 34,300 lbf ensures reliability in demanding conditions.
Its standard radial clearance makes it adaptable to different operational needs.

Application

Key Fields for 3778-3726 Bearing
In industrial settings, 3778-3726 Bearing is commonly used in heavy machinery like gearboxes and conveyor systems, where its tapered roller design handles combined loads effectively. The chrome steel construction ensures durability in demanding environments.

Where Is 3778-3726 Bearing Used?
You’ll often find 3778-3726 Bearing in automotive applications, such as wheel hubs and differentials, thanks to its ability to manage both radial and thrust loads. Its inch sizing makes it a good fit for American-made vehicles.

Built for Heavy-Duty Use: 3778-3726 Bearing
For construction equipment, 3778-3726 Bearing provides reliable performance in excavators and cranes, where its steel cage and robust design withstand constant stress. The open seal type allows for easy lubrication.

Automotive vs Aerospace: Applications of 3778-3726 Bearing
While 3778-3726 Bearing is popular in automotive systems, it also suits aerospace components like landing gear, where precision and load capacity are key. Its ABEC-1 rating ensures consistent performance.

Perfect Fit for Automation: 3778-3726 Bearing
In robotic arms and automated assembly lines, 3778-3726 Bearing offers smooth operation due to its tapered rollers and standard radial clearance. The steel cage adds stability during high-speed movements.

Q&A

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