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TS (Single Row Tapered Roller Bearings) (Imperial) 3776-3720

TS (Single Row Tapered Roller Bearings) (Imperial) 3776-3720

The 3776-3720 is a single-row tapered roller bearing with a 1.771″ bore and 3.6718″ 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 easy lubrication, while the steel cage ensures durability under heavy use. The bearing operates smoothly in temperatures from -30°C to 110°C, suitable for demanding environments.

This model is interchangeable with Timken bearings, offering a reliable replacement option. Ideal for industrial machinery or automotive systems where combined loads are common.

Weighing 2.1 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it meets safety and environmental requirements.

The standard radial clearance (with options for C3/C4/C5) provides flexibility for different setups. Its ABEC-1 rating ensures consistent performance for general industrial use.

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Product Parameters

  • Part Number 3776-3720
  • Brand TFL
  • Interchangeable Timken
  • Size 1.771" x 3.6718" x 1.1875"
  • Bore Dia 1.771"
  • 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 1.1875"
  • 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 2.32"
  • 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 3776
  • Cup Part Number 3720
  • 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 3776-3720 Bearing

3776-3720 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 27,500 lbf, making it suitable for heavy-duty applications.
The steel cage ensures proper roller alignment, reducing friction and enhancing durability.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

How Is 3776-3720 Bearing Engineered for Reliability?

3776-3720 Bearing features a single row tapered roller design, optimised for combined load handling.
The chrome steel construction provides excellent wear resistance, extending its service life.
Its standard radial clearance ensures smooth operation, even under demanding conditions.
With an ABEC-1 rating, it balances precision and affordability for industrial applications.

Designed for Durability: 3776-3720 Bearing

3776-3720 Bearing’s tapered roller design efficiently manages both radial and thrust loads.
The steel cage maintains roller positioning, preventing misalignment during operation.
Its static radial load capacity of 34,300 lbf ensures reliability in high-stress environments.
The open design allows for easy lubrication, maintaining optimal performance over time.

Steel vs Ceramic Bearings: Strengths of 3776-3720 Bearing

3776-3720 Bearing uses chrome steel for both rings and rollers, offering excellent strength-to-weight ratio.
This material choice provides good resistance to wear while maintaining cost-effectiveness.
The bearing’s 3700 series design ensures compatibility with various industrial applications.
With a weight of 2.1 lb, it offers robust performance without excessive bulk.

Application

Industrial Uses of 3776-3720 Bearing
The 3776-3720 Bearing is commonly used in heavy machinery like construction equipment, where its tapered roller design handles combined loads efficiently. Its chrome steel construction ensures durability even in demanding environments.

In automotive applications, 3776-3720 Bearing fits well in wheel hubs and differential systems, providing reliable performance under varying loads. The imperial sizing makes it a straightforward replacement for Timken equivalents.

For industrial gearboxes, 3776-3720 Bearing’s open design simplifies lubrication and maintenance. Its standard radial clearance offers flexibility for different operational needs.

What Makes 3776-3720 Bearing a Preferred Choice?
The 3776-3720 Bearing works seamlessly in agricultural machinery, supporting high radial and thrust loads. Its steel cage adds strength while maintaining smooth operation.

In conveyor systems, 3776-3720 Bearing’s tapered rollers reduce friction, extending service life. The ABEC-1 rating ensures consistent performance for general industrial use.

Built for Heavy-Duty Use: 3776-3720 Bearing
The 3776-3720 Bearing excels in mining equipment, where its robust design withstands harsh conditions. The chrome steel rollers enhance wear resistance over time.

For pulp and paper machinery, 3776-3720 Bearing’s combined load capacity keeps operations running smoothly. Its standard cup type simplifies installation and replacement.

Light-Duty vs Heavy-Duty: Best Uses for 3776-3720 Bearing
In light-duty applications like small pumps, 3776-3720 Bearing offers reliable performance without over-engineering. Its dynamic radial load rating suits moderate demands.

For heavy-duty tasks like crane systems, 3776-3720 Bearing’s high static load capacity ensures stability. The temperature range accommodates most industrial environments.

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