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3778 Single Cones (Imperial)

3778 Single Cones (Imperial)

The 3778 single cones are tapered roller bearings with a 1.875-inch bore, designed for combined loads. Made from durable chrome steel, they handle dynamic radial loads up to 27500 lbf and static loads up to 34300 lbf.

Their open design allows easy maintenance, while the steel cage ensures reliable performance. The bearings operate smoothly in temperatures from -30°C to 110°C, making them suitable for various conditions.

This model is interchangeable with Timken bearings, offering a practical replacement option. Ideal for heavy-duty applications like industrial machinery or vehicle axles where combined loads are common.

Compliant with RoHS and REACH standards, these bearings are safe and reliable for long-term use. Their standard radial clearance is available in C3, C4, or C5 options for different needs.

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Product Parameters

  • Part Number 3778
  • Brand TFL
  • Interchangeable Brand Timken
  • System of Measurement Inch
  • Type Cones
  • Bearing Part Number 3778-3720 , 3778-3720V , 3778-3726 , 3778-3727 , 3778-3730 , 3778-3732 , 3778-3733 , 3778-3735 , 3778-3720-B
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Series 3700
  • Bore Dia 1.875"
  • Bore Dia Tolerance +0.005" to 0
  • Cone Width 1.193"
  • Cone Width Tolerance +0.003" to -0.01
  • Cone Backface ToClear Radius 0.25"
  • Cone Frontface Backing Diameter 2.17"
  • Cone Backface Backing Diameter 2.64"
  • Cage Cone Frontface Clearance 0.06"
  • Cage Cone Backface Clearance 0.06"
  • Effective Center Location -0.32"
  • Ring 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 Radial Rating(Two Row 1 Million Revolutions)(C1) 47800 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 4120 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions)(C90) 12400 lbf
  • Temperature Range -30° to 110 °C
  • ABEC Rating ABEC-1
  • Radial Clearance Standard (Available in C3/C4/C5)
  • RoHS Compliant
  • REACH Compliant

Features

Built for Reliability: 3778 Bearing

3778 Bearing is crafted with chrome steel rings, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 27,500 lbf, ensuring steady performance in tough conditions.

The steel cage maintains roller alignment, reducing wear and enhancing durability.
With a temperature range of -30° to 110°C, it performs well in various environments.

3778 Bearing’s standard radial clearance options provide flexibility for different applications.
Its tapered roller design ensures smooth operation under both radial and thrust loads.

Application

Industrial Uses of 3778 Single Cones
3778 Single Cones are commonly used in heavy machinery, such as construction equipment and mining vehicles, where their tapered roller design handles combined loads effectively. The open seal allows for easy lubrication, making them suitable for dusty environments.

Where Is 3778 Single Cones Used?
You’ll often find 3778 Single Cones in agricultural machinery, like tractors and harvesters, where their durability and inch sizing fit well with older equipment. The chrome steel construction ensures long-lasting performance even under tough conditions.

Built for Heavy-Duty Use: 3778 Single Cones
3778 Single Cones excel in industrial gearboxes, providing reliable support for high radial and thrust loads. Their steel cage adds strength, making them a go-to choice for applications requiring consistent performance.

Automotive vs Aerospace: Applications of 3778 Single Cones
In automotive systems, 3778 Single Cones are used in wheel hubs and differentials, offering smooth operation under stress. While not common in aerospace, their robustness makes them ideal for ground support equipment.

Perfect Fit for Automation: 3778 Single Cones
3778 Single Cones work well in conveyor systems and automated production lines, where their tapered rollers manage varying loads efficiently. The standard radial clearance ensures easy integration into existing setups.

Q&A

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