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TS (Single Row Tapered Roller Bearings) (Imperial) 3778-3730

TS (Single Row Tapered Roller Bearings) (Imperial) 3778-3730

The 3778-3730 is a single-row tapered roller bearing with a 1.875″ bore and 3.6718″ outer diameter, crafted from sturdy chrome steel. It manages combined loads up to 27500 lbf radially and 4120 lbf thrust, suitable for moderate-speed applications.

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

This model is interchangeable with Timken bearings, making it a practical choice for replacements. Ideal for machinery like gearboxes or axles where combined loads are common.

Weighing 2lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe use.

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Product Parameters

  • Part Number 3778-3730
  • Brand TFL
  • Interchangeable Timken
  • Size 1.875" x 3.6718" x 1.1876"
  • Bore Dia 1.875"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.6718"
  • 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 0.03"
  • Cone Frontface Backing Diameter 2.17"
  • Cone Backface Backing Diameter 2.64"
  • Cup Frontface Backing Diameter 3.50"
  • Cup Backface Backing Diameter 3.31"
  • 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 3730
  • 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 lb

Features

Performance Features of 3778-3730 Bearing

3778-3730 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 27,500 lbf, ensuring reliable performance in various applications.
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 diverse environments.

How Is 3778-3730 Bearing Engineered for Reliability?

3778-3730 Bearing features a single-row tapered roller design, ideal for handling combined loads.
The chrome steel construction provides durability, while the standard radial clearance ensures smooth operation.
Its dynamic thrust rating of 4,120 lbf makes it suitable for demanding conditions.
The open seal type allows for easy lubrication, enhancing maintenance efficiency.

Built for Durability: 3778-3730 Bearing

3778-3730 Bearing’s chrome steel components resist wear, ensuring long service life.
The tapered roller design efficiently manages both radial and thrust loads.
With a static radial load capacity of 34,300 lbf, it excels in heavy-duty applications.
Its ABEC-1 rating guarantees consistent performance in precision tasks.

Steel vs Ceramic Bearings: Strengths of 3778-3730 Bearing

3778-3730 Bearing uses chrome steel for both rollers and rings, providing excellent strength.
The steel cage ensures stability, even under high dynamic radial loads.
Its standard radial clearance allows for smooth operation in various conditions.
The bearing’s design simplifies maintenance, reducing long-term costs.

Application

Industrial Uses of 3778-3730 Bearing
The 3778-3730 Bearing is a reliable choice for heavy machinery, such as construction equipment and agricultural gear, where combined loads are common. Its tapered roller design ensures smooth operation even under demanding conditions.

Where Is 3778-3730 Bearing Used?
You’ll often find the 3778-3730 Bearing in automotive applications like wheel hubs and differentials, thanks to its robust chrome steel construction. The imperial sizing makes it a handy fit for older or US-made vehicles.

Built for Heavy-Duty Use: 3778-3730 Bearing
In industrial settings, the 3778-3730 Bearing handles high radial and thrust loads effortlessly, making it ideal for conveyor systems and gearboxes. Its open design allows for easy lubrication, extending service life.

Automotive vs Aerospace: Applications of 3778-3730 Bearing
While the 3778-3730 Bearing excels in automotive drivetrains, its precision also suits aerospace landing gear components. The ABEC-1 rating ensures consistent performance across both sectors.

Perfect Fit for Automation: 3778-3730 Bearing
The 3778-3730 Bearing works well in automated machinery, such as packaging lines, where its tapered rollers reduce friction. Its steel cage adds durability, even in high-speed scenarios.

Q&A

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