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TS (Single Row Tapered Roller Bearings) (Imperial) 3778-3727

TS (Single Row Tapered Roller Bearings) (Imperial) 3778-3727

The 3778-3727 is a single-row tapered roller bearing with a 1.875″ 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 industrial machinery or automotive systems where combined loads are common.

Weighing just 2lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a safe choice for diverse environments. The ABEC-1 rating ensures consistent performance for general applications.

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Product Parameters

  • Part Number 3778-3727
  • Brand TFL
  • Interchangeable Timken
  • Size 1.875" x 3.6875" x 1.1876"
  • Bore Dia 1.875"
  • 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 0.25"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 2.17"
  • Cone Backface Backing Diameter 2.64"
  • 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 3778
  • 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 lb

Features

Engineered for Precision: 3778-3727 Bearing

3778-3727 Bearing features a single row tapered roller design, ideal for handling combined radial and thrust loads.
Its chrome steel construction ensures durability and resistance to wear in demanding applications.

The bearing’s dynamic radial load capacity reaches 27,500 lbf, providing reliable performance under heavy loads.
With a standard radial clearance, it offers flexibility for various industrial uses.

3778-3727 Bearing operates efficiently within a temperature range of -30° to 110°C.
Its steel cage maintains roller alignment, enhancing stability and longevity.

Application

Industrial Uses of 3778-3727 Bearing
3778-3727 Bearing is commonly used in heavy-duty industrial equipment like conveyor systems and gearboxes, where its tapered roller design handles combined loads effectively. The chrome steel construction ensures durability in demanding environments.

In automotive applications, 3778-3727 Bearing fits well in truck wheel hubs and differential systems, providing reliable performance under high radial and thrust loads. Its imperial sizing makes it a convenient choice for North American vehicle models.

For agricultural machinery, 3778-3727 Bearing’s robust design supports equipment like tractors and harvesters, where consistent operation is key. The steel cage adds extra strength, making it suitable for rough terrain.

What Makes 3778-3727 Bearing a Preferred Choice?
3778-3727 Bearing stands out in construction equipment, such as cranes and excavators, due to its ability to manage heavy loads. The open seal design allows for easy lubrication, extending its service life.

In mining applications, 3778-3727 Bearing’s tapered rollers excel in handling uneven loads, making it ideal for crushers and drilling rigs. The standard radial clearance ensures smooth operation even under stress.

Built for Heavy-Duty Use: 3778-3727 Bearing
3778-3727 Bearing is a go-to solution for forestry machinery, where its combined load capacity handles the challenges of log splitters and sawmills. The chrome steel rollers resist wear, even in harsh conditions.

For railway applications, 3778-3727 Bearing provides stability in axle boxes, ensuring smooth rides under varying loads. Its ABEC-1 rating offers a balance of precision and affordability for rail operators.

Automotive vs Aerospace: Applications of 3778-3727 Bearing
In automotive settings, 3778-3727 Bearing is often found in heavy trucks, where its durability supports long-haul performance. The imperial measurements simplify replacements in older models.

For aerospace ground equipment, 3778-3727 Bearing’s reliability shines in tow tractors and loading systems. The temperature range ensures consistent performance in diverse weather conditions.

Q&A

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