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TS (Single Row Tapered Roller Bearings) (Imperial) 3781-3735

TS (Single Row Tapered Roller Bearings) (Imperial) 3781-3735

The 3781-3735 is a single-row tapered roller bearing with a 1.9375″ bore and 3.9386″ outer diameter, crafted from sturdy chrome steel. It manages combined loads up to 27500 lbf radially and 4120 lbf thrust, suitable for demanding applications.

Its open design allows for 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 machinery or automotive uses where combined loads are common.

Weighing 2.3 lb, it offers a robust build for its size. Compliant with RoHS and REACH standards for safe and reliable performance.

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Product Parameters

  • Part Number 3781-3735
  • Brand TFL
  • Interchangeable Timken
  • Size 1.9375" x 3.9386" x 1.1851"
  • Bore Dia 1.9375"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.9386"
  • 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 1.1851"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.14"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 2.2"
  • Cone Backface Backing Diameter 2.44"
  • Cup Frontface Backing Diameter 3.62"
  • Cup Backface Backing Diameter 3.35"
  • 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 3781
  • Cup Part Number 3735
  • 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 2.3 lb

Features

How Does 3781-3735 Bearing Handle Combined Loads?

3781-3735 Bearing is built with chrome steel rings and rollers, offering strong resistance to both radial and thrust loads.
Its dynamic radial load capacity reaches 27,500 lbf, ensuring reliable performance in demanding conditions.
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 various environments.

What Makes 3781-3735 Bearing Suitable for Heavy-Duty Applications?

3781-3735 Bearing features a single-row tapered roller design, optimised for combined load handling.
The chrome steel construction provides durability, while the standard radial clearance ensures smooth operation.
Its static radial load capacity of 34,300 lbf makes it ideal for heavy-duty machinery.
The open seal type allows for easy lubrication, maintaining performance over time.

Engineered for Precision: 3781-3735 Bearing

3781-3735 Bearing’s precise cone and cup dimensions ensure accurate alignment in applications.
The tapered roller design reduces friction, enhancing efficiency and longevity.
With an ABEC-1 rating, it meets standard precision requirements for industrial use.
The steel cage offers stability, keeping rollers in place during operation.

Why Choose 3781-3735 Bearing for Industrial Use?

3781-3735 Bearing’s chrome steel rollers and rings provide excellent wear resistance.
Its dynamic thrust rating of 4,120 lbf ensures reliable performance under load.
The standard radial clearance option allows for flexibility in various applications.
Weighing just 2.3 lb, it balances strength and ease of installation.

Structural Advantages of 3781-3735 Bearing

3781-3735 Bearing’s tapered roller design distributes loads evenly, reducing stress.
The chrome steel construction resists wear, ensuring a longer service life.
Its effective centre location of -0.32″ enhances stability in mounted applications.
The open design simplifies maintenance, keeping operational costs low.

Application

Industrial Uses of 3781-3735 Bearing
The 3781-3735 Bearing is commonly used in heavy machinery, such as construction equipment and agricultural gear, where its tapered roller design handles combined loads efficiently. Its chrome steel construction ensures durability even in demanding environments.

Where Is 3781-3735 Bearing Used?
You’ll often find the 3781-3735 Bearing in automotive applications like truck wheel hubs, where its robust design supports both radial and thrust loads. The inch sizing makes it a reliable choice for North American vehicle models.

Built for Heavy-Duty Use: 3781-3735 Bearing
In industrial settings, the 3781-3735 Bearing excels in conveyor systems and gearboxes, thanks to its ability to manage high dynamic loads. The steel cage adds extra strength, making it suitable for continuous operation.

Automotive vs Aerospace: Applications of 3781-3735 Bearing
While the 3781-3735 Bearing is a staple in automotive drivetrains, its precision also makes it useful in aerospace landing gear components. The ABEC-1 rating ensures consistent performance across different industries.

Perfect Fit for Automation: 3781-3735 Bearing
The 3781-3735 Bearing works well in automated machinery, such as robotic arms, where smooth rotation and load handling are key. Its open design allows for easy lubrication, reducing maintenance downtime.

Q&A

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