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TS (Single Row Tapered Roller Bearings) (Imperial) 3578-3520

TS (Single Row Tapered Roller Bearings) (Imperial) 3578-3520

The 3578-3520 is a single-row tapered roller bearing with a 1.75″ bore and 3.3125″ outer diameter, crafted from sturdy chrome steel. It manages combined loads up to 25500 lbf radially and 3460 lbf thrust, suitable for tough conditions.

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

This model is interchangeable with Timken bearings, offering a reliable replacement option. Ideal for heavy-duty applications like truck axles or industrial gearboxes where combined loads are common.

Weighing 1.5 lb, it balances strength and manageable size. Compliant with RoHS and REACH standards, it meets safety and environmental requirements.

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Product Parameters

  • Part Number 3578-3520
  • Brand TFL
  • Interchangeable Timken
  • Size 1.75" x 3.3125" x 1.1875"
  • Bore Dia 1.75"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.3125"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 1.216"
  • 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 2.01"
  • Cone Backface Backing Diameter 2.24"
  • Cup Frontface Backing Diameter 3.15"
  • Cup Backface Backing Diameter 2.91"
  • Cage Cone Frontface Clearance 0.05"
  • Cage Cone Backface Clearance 0.07"
  • Effective Center Location -0.4"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 3578
  • Cup Part Number 3520
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 3500
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 25500 lbf
  • Static Radial Load 30100 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 6610 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 3460 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 1.500 lb

Features

Performance Features of 3578-3520 Bearing

3578-3520 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 25,500 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 3578-3520 Bearing Engineered for Reliability?

3578-3520 Bearing features a tapered roller design, optimised for handling both radial and thrust loads.
The chrome steel construction provides excellent wear resistance, extending its service life.
Its standard radial clearance ensures smooth operation, while the open design simplifies maintenance.
This bearing is interchangeable with Timken models, offering flexibility in replacements.

Built for Durability: 3578-3520 Bearing

3578-3520 Bearing’s single-row construction delivers reliable performance in demanding environments.
The precise tolerances on bore and outer diameters ensure a perfect fit for your machinery.
With a static radial load capacity of 30,100 lbf, it handles heavy loads with ease.
Its ABEC-1 rating guarantees consistent quality and performance.

Application

Industrial Uses of 3578-3520 Bearing
3578-3520 Bearing is commonly used in heavy machinery like construction equipment, where its tapered roller design handles combined radial and thrust loads effectively. The chrome steel construction ensures durability even in tough working conditions.

Where Is 3578-3520 Bearing Used?
You’ll often find 3578-3520 Bearing in automotive axles and gearboxes, thanks to its reliable performance under high loads. Its inch sizing makes it a good fit for American-made vehicles and industrial applications.

Built for Heavy-Duty Use: 3578-3520 Bearing
3578-3520 Bearing works well in agricultural machinery, such as tractors and harvesters, where its steel cage provides stability. The standard radial clearance allows for smooth operation in varying temperatures.

Automotive vs Aerospace: Applications of 3578-3520 Bearing
In automotive systems, 3578-3520 Bearing supports wheel hubs and drivetrains, while in aerospace, it’s suited for auxiliary equipment due to its ABEC-1 precision. The open design simplifies lubrication and maintenance.

Key Fields for 3578-3520 Bearing
3578-3520 Bearing is ideal for mining equipment, where its dynamic load capacity ensures long service life. The tapered rollers distribute stress evenly, reducing wear in high-impact environments.

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