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TS (Single Row Tapered Roller Bearings) (Imperial) 3777-3727

TS (Single Row Tapered Roller Bearings) (Imperial) 3777-3727

The 3777-3727 is a single-row tapered roller bearing with a 1.8125″ bore and 3.6875″ 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 wheel hubs where combined loads are common.

Weighing 2.1 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a safe choice for industrial use.

The standard radial clearance and ABEC-1 rating ensure consistent performance. Its tapered roller design provides excellent load distribution, reducing wear over time.

Suitable for applications requiring precise alignment and high load capacity. A dependable choice for maintenance and replacement in industrial settings.

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Product Parameters

  • Part Number 3777-3727
  • Brand TFL
  • Interchangeable Timken
  • Size 1.8125" x 3.6875" x 1.1876"
  • Bore Dia 1.8125"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.6875"
  • 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 3.50"
  • Cup Backface Backing Diameter 3.23"
  • 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 3727
  • 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 2.1 lb

Features

Performance Features of 3777-3727 Bearing

3777-3727 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 3777-3727 Bearing Engineered for Reliability?

3777-3727 Bearing features precise cone and cup width tolerances, ensuring smooth and stable operation.
The tapered roller design efficiently handles both radial and thrust loads, enhancing versatility.
Its chrome steel construction provides durability, even under heavy-duty conditions.
The standard radial clearance options allow for flexibility in different applications.

Built for Durability: 3777-3727 Bearing

3777-3727 Bearing’s single-row construction simplifies installation while maintaining high load capacity.
The open seal type facilitates easy lubrication, ensuring consistent performance over time.
With an ABEC-1 rating, it balances precision and cost-effectiveness.
The bearing’s robust design makes it suitable for industrial and automotive uses.

Application

Industrial Uses of 3777-3727 Bearing
The 3777-3727 Bearing is commonly used in heavy machinery like construction equipment, where its tapered roller design handles combined radial and thrust loads efficiently. Its chrome steel construction ensures durability in demanding environments.

In automotive applications, 3777-3727 Bearing fits well in wheel hubs and differential systems, providing reliable performance under varying loads. The imperial sizing makes it a straightforward replacement for many North American vehicle models.

For industrial conveyor systems, 3777-3727 Bearing’s open design simplifies lubrication and maintenance. Its standard radial clearance options allow for flexibility in different operational conditions.

Why Is 3777-3727 Bearing Essential in Machinery?
The 3777-3727 Bearing supports high-load scenarios in agricultural machinery, such as tractors and harvesters. Its robust design ensures long service life even in dusty or wet conditions.

In mining equipment, 3777-3727 Bearing’s ability to handle combined loads makes it ideal for crushers and screens. The steel cage adds extra strength to withstand heavy impacts.

Built for Heavy-Duty Use: 3777-3727 Bearing
The 3777-3727 Bearing is a go-to choice for gearboxes in industrial pumps, where precision and reliability are key. Its tapered rollers distribute loads evenly, reducing wear over time.

For railway applications, 3777-3727 Bearing’s temperature tolerance ensures consistent performance in both hot and cold climates. The ABEC-1 rating provides a balance of precision and affordability.

Automotive vs Aerospace: Applications of 3777-3727 Bearing
In automotive drivetrains, 3777-3727 Bearing handles the stresses of acceleration and deceleration smoothly. Its compatibility with Timken models simplifies sourcing for repairs.

For aerospace ground support equipment, 3777-3727 Bearing’s static load capacity makes it suitable for heavy lifting gear. The chrome steel rollers resist deformation under extreme pressures.

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