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370A-363D TDO (Two-Row Double-Outer Race) (Imperial)

370A-363D TDO (Two-Row Double-Outer Race) (Imperial)

The 370A-363D is a double-row tapered roller bearing with a 2″ bore and 3.5433″ outer diameter, built from sturdy chrome steel for long-lasting performance. It handles combined loads with a dynamic radial capacity of 39900 lbf and operates smoothly in temperatures from -30°C to 110°C.

Its open design allows for easy lubrication, while the steel cage ensures durability under heavy loads. The bearing is designed for standard radial clearance but can also be ordered in C3, C4, or C5 configurations for specific needs.

This model is part of the 365 series, featuring a double outer race for balanced load distribution. Ideal for industrial machinery or vehicle applications where combined radial and thrust loads are common.

Weighing 2.46 lb, it’s a robust choice for demanding environments. Compliant with RoHS and REACH standards, it offers reliable performance with minimal maintenance.

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Product Parameters

  • Part Number 370A-363D
  • Brand TFL
  • Size 2" x 3.5433" x 0.875"
  • Bore Dia 2"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.5433"
  • Outer Dia Tolerance +0.001" to 0
  • Double Cup Width 1.6563"
  • Double Cup Width Tolerance +0.003" to -0.01
  • Cone Width 0.875"
  • Cone Width Tolerance +0.002" to -0.01
  • Bearing Width Across Cups 1.9688"
  • Bearing Width Across Cups Tolerance +0.008" to 0
  • Cup Backface ToClear Radius 0.03"
  • Cone Backface Backing Diameter 2.56"
  • Cup Frontface Backing Diameter 3.34"
  • Cage Cone Backface Clearance 0"
  • Dynamic Radial Load 39900 lbf
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 370A
  • Cup Part Number 363D
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Double Row
  • Seal Type Open
  • Cups Type Standard
  • Series 365
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Rating(One Row 90 Million Revolutions) 5930 lbf
  • Dynamic Thrust Rating(90 Million Revolutions) 3250 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions) 10300 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 2.46 lb

Features

Performance Features of 370A-363D Bearing

370A-363D Bearing is built with chrome steel rings and rollers, offering robust performance under combined loads.
Its dynamic radial load capacity reaches 39,900 lbf, making it suitable for heavy-duty applications.

The double-row tapered roller design ensures stability and even load distribution.
This construction enhances durability while maintaining smooth operation in various conditions.

370A-363D Bearing operates efficiently within a temperature range of -30° to 110°C.
Its standard radial clearance options provide flexibility for different installation needs.

With a weight of 2.46 lb, it balances strength and manageability.
The open seal type allows for easy lubrication, ensuring long service life.

Application

Industrial Uses of 370A-363D Bearing
The 370A-363D Bearing is widely used in heavy machinery, such as construction equipment and mining tools, where its double-row design handles combined radial and thrust loads efficiently. Its chrome steel construction ensures durability in demanding environments.

In automotive applications, 370A-363D Bearing supports axle systems and wheel hubs, providing reliable performance under varying loads. The inch sizing makes it compatible with many North American vehicle models.

For industrial automation, 370A-363D Bearing is a solid choice for conveyor systems and robotic arms, thanks to its open design and easy lubrication. The standard radial clearance allows for smooth operation in high-speed scenarios.

Where Is 370A-363D Bearing Used?
You’ll often find 370A-363D Bearing in agricultural machinery, where its tapered roller design handles uneven loads from plows and harvesters. The steel cage adds extra strength for long-term use.

In material handling equipment, 370A-363D Bearing ensures smooth rotation for cranes and forklifts. Its ABEC-1 rating provides a good balance of precision and affordability for these applications.

Built for Heavy-Duty Use: 370A-363D Bearing
The 370A-363D Bearing excels in forestry equipment, such as log splitters and sawmills, where its combined load capacity is essential. The open seal type allows for easy maintenance in dusty conditions.

For railway applications, 370A-363D Bearing supports bogies and axle boxes, offering reliable performance under constant vibration. Its temperature range suits both cold and moderate climates.

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