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TS (Single Row Tapered Roller Bearings) (Imperial) 3378-3329

TS (Single Row Tapered Roller Bearings) (Imperial) 3378-3329

The 3378-3329 is a single-row tapered roller bearing with a 1.44″ bore and 3.22″ outer diameter, crafted from sturdy chrome steel. It manages combined loads up to 25800 lbf radial and 3130 lbf thrust, suitable for moderate-speed applications.

Its open design allows easy lubrication, while the steel cage ensures durability. The bearing operates smoothly in temperatures from -30°C to 110°C.

This model is interchangeable with Timken bearings, making it a practical choice for replacements. Ideal for heavy-duty uses like axles or industrial gearboxes where combined loads are common.

Weighing 1.6 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe and reliable performance.

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Product Parameters

  • Part Number 3378-3329
  • Brand TFL
  • Interchangeable Timken
  • Size 1.4365" x 3.2187" x 1.1563"
  • Bore Dia 1.4365"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.2187"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 1.1965"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.9375"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.1563"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.14"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 1.69"
  • Cone Backface Backing Diameter 1.95"
  • Cup Frontface Backing Diameter 2.99"
  • Cup Backface Backing Diameter 2.8"
  • Cage Cone Frontface Clearance 0.07"
  • Cage Cone Backface Clearance 0.06"
  • Effective Center Location -0.43"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 3378
  • Cup Part Number 3329
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 3300
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 25800 lbf
  • Static Radial Load 29100 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 6700 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 3130 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 1.6 lb

Features

Performance Features of 3378-3329 Bearing

3378-3329 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 25,800 lbf, ensuring reliable performance in various applications.
The steel cage maintains roller alignment, reducing friction and extending operational life.
With a standard radial clearance, it provides flexibility for different installation needs.

How Is 3378-3329 Bearing Engineered for Reliability?

3378-3329 Bearing features a single-row tapered roller design, ideal for handling both radial and thrust loads.
The chrome steel construction ensures durability and resistance to wear under heavy loads.
Its effective centre location of -0.43″ enhances stability and load distribution.
Operating within a temperature range of -30° to 110°C, it performs reliably in diverse conditions.

Built for Durability: 3378-3329 Bearing

3378-3329 Bearing’s tapered roller design provides excellent load-carrying capacity and long service life.
The chrome steel rollers and rings work together to minimise wear and maintain performance.
With a static radial load rating of 29,100 lbf, it handles demanding applications with ease.
Its open design allows for easy lubrication, ensuring smooth operation over time.

Steel vs Ceramic Bearings: Strengths of 3378-3329 Bearing

3378-3329 Bearing uses high-quality chrome steel for both rollers and rings, balancing cost and performance.
This material choice provides excellent strength and wear resistance for industrial applications.
The bearing’s ABEC-1 rating ensures consistent precision in operation.
Weighing just 1.6 lb, it offers a good strength-to-weight ratio for its size.

Application

Key Fields for 3378-3329 Bearing
In industrial settings, 3378-3329 Bearing is commonly used in heavy machinery like conveyor systems and gearboxes, where its tapered roller design handles combined loads efficiently. The chrome steel construction ensures durability even in demanding environments.

Where Is 3378-3329 Bearing Used?
You’ll often find 3378-3329 Bearing in automotive applications, particularly in wheel hubs and differentials, where its ability to manage radial and thrust loads is essential. The inch sizing makes it a good fit for many North American vehicle models.

Built for Heavy-Duty Use: 3378-3329 Bearing
For construction equipment, 3378-3329 Bearing provides reliable performance in excavators and cranes, thanks to its robust steel cage and high load capacity. The standard radial clearance offers flexibility for various operational conditions.

Automotive vs Aerospace: Applications of 3378-3329 Bearing
In automotive systems, 3378-3329 Bearing supports high-load components like axles, while in aerospace, its precision makes it suitable for auxiliary equipment. The ABEC-1 rating ensures consistent performance across different industries.

Practical Applications of 3378-3329 Bearing
In agricultural machinery, 3378-3329 Bearing is a go-to for tractors and harvesters, where its tapered rollers handle uneven loads with ease. The open design simplifies lubrication, extending service life in dusty conditions.

Q&A

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