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TS (Single Row Tapered Roller Bearings) (Imperial) 3777-3732

TS (Single Row Tapered Roller Bearings) (Imperial) 3777-3732

The 3777-3732 is a single-row tapered roller bearing with a 1.8125″ bore and 3.875″ 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 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, making it a practical choice for replacements. Ideal for machinery like gearboxes or axles where combined loads are common.

Weighing 2.4 lb, it offers a balance of strength and manageable size. Compliant with RoHS and REACH standards for safe and reliable performance.

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Product Parameters

  • Part Number 3777-3732
  • Brand TFL
  • Interchangeable Timken
  • Size 1.8125" x 3.875" x 1.1876"
  • Bore Dia 1.8125"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.875"
  • 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 0.130"
  • Cone Frontface Backing Diameter 2.09"
  • Cone Backface Backing Diameter 2.36"
  • Cup Frontface Backing Diameter 3.56"
  • 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 3777
  • Cup Part Number 3732
  • 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 3777-3732 Bearing Handle Combined Loads?

3777-3732 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 applications.

The steel cage maintains roller alignment, reducing friction and extending service life.
With a temperature range of -30° to 110°C, it performs well in various operating conditions.

3777-3732 Bearing’s standard radial clearance allows for smooth operation under combined loads.
Its ABEC-1 rating ensures consistent precision for industrial applications.

Application

Industrial Uses of 3777-3732 Bearing
3777-3732 Bearing is commonly used in heavy machinery like construction equipment, where its tapered roller design handles combined loads effectively. The chrome steel construction ensures durability in tough working conditions.

In automotive applications, 3777-3732 Bearing fits well in wheel hubs and differential systems, providing reliable performance under radial and thrust loads. Its inch sizing makes it compatible with many American-made vehicles.

For industrial conveyor systems, 3777-3732 Bearing’s open design allows for easy lubrication, extending service life in high-load environments. The steel cage adds extra strength for continuous operation.

Where Is 3777-3732 Bearing Used?
You’ll often find 3777-3732 Bearing in agricultural machinery, particularly in gearboxes and PTO shafts. Its ABEC-1 rating offers a good balance of precision and affordability for farm equipment.

The bearing also works well in mining equipment, where its dynamic radial load capacity handles heavy vibrations. Standard radial clearance options make it adaptable to different operating conditions.

Built for Heavy-Duty Use: 3777-3732 Bearing
3777-3732 Bearing excels in forestry machinery like log splitters, thanks to its robust chrome steel rollers. The tapered design efficiently manages both radial and axial forces.

In material handling equipment, this bearing’s 3.875″ outer diameter provides stable support for rotating components. Its temperature range suits both indoor and outdoor applications.

Automotive vs Aerospace: Applications of 3777-3732 Bearing
While 3777-3732 Bearing is popular in truck transmissions, its precision isn’t typically required for aerospace. The bearing’s 27500 lbf dynamic load rating makes it ideal for ground vehicles.

In industrial pumps, 3777-3732 Bearing’s standard radial clearance allows for smooth rotation at moderate speeds. The steel cage prevents roller slippage during start-stop cycles.

Q&A

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