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TS (Single Row Tapered Roller Bearings) (Imperial) 3781-3733

TS (Single Row Tapered Roller Bearings) (Imperial) 3781-3733

The 3781-3733 is a single-row tapered roller bearing with a 1.9375″ bore and 3.9385″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 27500 lbf radially and 4120 lbf in thrust, making it versatile for various applications.

Its open design allows for easy lubrication, while the steel cage ensures durability under heavy use. The bearing operates smoothly in temperatures ranging from -30°C to 110°C.

This model is interchangeable with Timken bearings, offering a reliable replacement option. Ideal for machinery like gearboxes or axles where combined loads are common.

Weighing 2.4 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe and eco-friendly use.

The standard radial clearance and ABEC-1 rating ensure consistent performance. Suitable for industrial settings requiring dependable load handling.

Its tapered roller design provides efficient load distribution, reducing wear over time. Perfect for applications needing long-lasting reliability.

The bearing’s dimensions and tolerances are precise, ensuring a snug fit in assemblies. A practical choice for maintenance and new installations alike.

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Product Parameters

  • Part Number 3781-3733
  • Brand TFL
  • Interchangeable Timken
  • Size 1.9375" x 3.9385" x 1.1876"
  • Bore Dia 1.9375"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.9385"
  • 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 0.14"
  • Cup Backface ToClear Radius 0.03"
  • Cone Frontface Backing Diameter 2.2"
  • Cone Backface Backing Diameter 2.44"
  • Cup Frontface Backing Diameter 3.62"
  • Cup Backface Backing Diameter 3.43"
  • 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 3733
  • 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 2.4 lb

Features

How Does 3781-3733 Bearing Handle Combined Loads?

3781-3733 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.

Structural Advantages of 3781-3733 Bearing

3781-3733 Bearing features a single-row tapered roller design, optimised for combined load applications.
The chrome steel construction enhances durability while maintaining smooth operation.
Its standard radial clearance allows for flexibility in different mounting conditions.
Precision tolerances ensure consistent performance across a wide range of speeds.

Why Choose 3781-3733 Bearing for Heavy-Duty Applications?

3781-3733 Bearing’s robust design handles static radial loads up to 34,300 lbf with ease.
The tapered roller configuration distributes loads evenly, reducing stress on individual components.
Steel cage construction provides stability at high speeds while minimising wear.
Its ABEC-1 rating ensures reliable precision for industrial applications.

Application

Industrial Uses of 3781-3733 Bearing
You’ll often spot 3781-3733 Bearing in heavy machinery like construction equipment, where its tapered roller design handles combined loads effortlessly. The chrome steel construction gives it lasting durability in tough working conditions.

Where Is 3781-3733 Bearing Used?
In automotive applications, 3781-3733 Bearing works well in wheel hubs and differential systems due to its precise imperial sizing. Its open design allows for easy lubrication, keeping things running smoothly.

Built for Heavy-Duty Use: 3781-3733 Bearing
This bearing shines in agricultural machinery, supporting heavy axial and radial loads in tractors and harvesters. The steel cage adds extra strength, making it reliable for long hours of operation.

Automotive vs Aerospace: Applications of 3781-3733 Bearing
While 3781-3733 Bearing fits perfectly in truck transmissions, it’s also found in aircraft landing gear components. The ABEC-1 rating ensures consistent performance across different environments.

Key Fields for 3781-3733 Bearing
Railway applications benefit from 3781-3733 Bearing’s ability to handle vibration and shock loads. Its standard radial clearance makes it versatile for various railcar systems.

Q&A

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