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TS (Single Row Tapered Roller Bearings) (Imperial) 3784-3720V

TS (Single Row Tapered Roller Bearings) (Imperial) 3784-3720V

The 3784-3720V is a single-row tapered roller bearing with a 2-inch bore and 3.6718-inch outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 27500 lbf radially and 4120 lbf 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 use in gearboxes, wheel hubs, or industrial machinery where combined loads are common.

Weighing just 1.8 lb, it’s a robust yet manageable choice for demanding environments. Compliant with RoHS and REACH standards for safe and eco-friendly use.

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Product Parameters

  • Part Number 3784-3720V
  • Brand TFL
  • Interchangeable Timken
  • Size 2" x 3.6718" x 1.1876"
  • Bore Dia 2"
  • 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 0.130"
  • Cone Frontface Backing Diameter 2.28"
  • Cone Backface Backing Diameter 2.76"
  • 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 3784
  • Cup Part Number 3720V
  • 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 1.8 lb

Features

Performance Features of 3784-3720V Bearing

3784-3720V 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 3784-3720V Bearing Engineered for Reliability?

3784-3720V 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 dynamic thrust rating of 4,120 lbf ensures consistent performance under pressure.
The standard radial clearance options allow for flexibility in different applications.

Built for Durability: 3784-3720V Bearing

3784-3720V Bearing’s robust construction includes chrome steel components for long-lasting use.
The tapered roller design efficiently distributes loads, reducing stress on individual components.
With a static radial load capacity of 34,300 lbf, it handles demanding conditions with ease.
Its ABEC-1 rating ensures reliable precision in various industrial settings.

Steel vs Ceramic Bearings: Strengths of 3784-3720V Bearing

3784-3720V Bearing uses chrome steel for both rollers and rings, balancing strength and affordability.
This material choice provides excellent load capacity while maintaining good corrosion resistance.
The bearing’s design focuses on durability, with a dynamic radial rating of 7,120 lbf at 90 million revolutions.
Its standard lubrication requirement ensures smooth operation throughout its service life.

Application

Industrial Uses of 3784-3720V Bearing
The 3784-3720V Bearing is a reliable choice for heavy machinery, especially in construction equipment where combined loads are common. Its tapered roller design handles both radial and thrust forces efficiently, making it suitable for gearboxes and axles.

In automotive applications, 3784-3720V Bearing works well in wheel hubs and differential systems, thanks to its durable chrome steel construction. The imperial sizing ensures compatibility with many North American vehicle models, simplifying replacements.

For industrial fans and pumps, 3784-3720V Bearing’s open design allows for easy lubrication, extending service life in high-speed environments. The steel cage adds stability, reducing wear during continuous operation.

What Makes 3784-3720V Bearing a Preferred Choice?
Farm equipment often relies on 3784-3720V Bearing for its ability to withstand harsh conditions, like dust and heavy loads. The tapered rollers distribute stress evenly, preventing premature failure in tractors and harvesters.

In conveyor systems, 3784-3720V Bearing’s standard radial clearance ensures smooth movement under varying loads. Its compatibility with Timken models makes it a versatile option for maintenance teams looking for interchangeable parts.

The 3784-3720V Bearing also fits well in mining machinery, where its robust design handles extreme vibrations. The chrome steel rollers resist deformation, even under intense operational stress.

Built for Heavy-Duty Use: 3784-3720V Bearing
You’ll often find 3784-3720V Bearing in forklifts, where its combined load capacity supports lifting and steering mechanisms. The single-row design simplifies installation, saving time during repairs.

For railway applications, 3784-3720V Bearing’s temperature tolerance makes it suitable for brake systems. The steel cage ensures consistent performance, even during sudden stops or starts.

In agricultural machinery, 3784-3720V Bearing’s resistance to contamination helps maintain efficiency in dusty fields. The open seal type allows for regular greasing, keeping operations running smoothly.

Automotive vs Aerospace: Applications of 3784-3720V Bearing
In trucks and buses, 3784-3720V Bearing handles the heavy loads of drivetrains, thanks to its high dynamic radial rating. The inch measurements align with standard US automotive specs, reducing adaptation needs.

While not for jet engines, 3784-3720V Bearing suits ground-support equipment like baggage loaders. Its ABEC-1 rating balances precision and cost for these less critical aerospace applications.

The 3784-3720V Bearing’s versatility shines in off-road vehicles, where it manages uneven terrain stresses. The tapered rollers adjust to shifting loads, providing reliable performance in rugged conditions.

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