TS (Single Row Tapered Roller Bearings) (Imperial) 18690-18620

TS (Single Row Tapered Roller Bearings) (Imperial) 18690-18620

The 18690-18620 is a single-row tapered roller bearing with a 1.8125″ bore and 3.125″ outer diameter, crafted from durable chrome steel. It handles combined loads up to 11700 lbf radially and 1940 lbf thrust, making it versatile for various applications.

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

This model is interchangeable with Timken bearings, offering a practical replacement option. Ideal for use in gearboxes, axles, or industrial machinery where combined loads are present.

Weighing just 0.7 lb, it’s lightweight yet sturdy. Compliant with RoHS and REACH standards, it’s a safe choice for most industrial environments.

The standard radial clearance ensures easy installation, and the ABEC-1 rating provides consistent performance. Suitable for applications requiring durability and reliability under moderate loads.

Its tapered roller design helps distribute loads evenly, reducing wear over time. A dependable choice for maintenance and repair tasks in various mechanical systems.

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Product Parameters

  • Part Number 18690-18620
  • Brand TFL
  • Interchangeable Timken
  • Size 1.8125" x 3.125" x 0.6875"
  • Bore Dia 1.8125"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.125"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 0.6875"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.5313"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 0.6875"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.110"
  • Cup Backface ToClear Radius 0.06"
  • Cone Frontface Backing Diameter 2.01"
  • Cone Backface Backing Diameter 2.2"
  • Cup Frontface Backing Diameter 2.94"
  • Cup Backface Backing Diameter 2.8"
  • Cage Cone Frontface Clearance 0.09"
  • Cage Cone Backface Clearance 0.01"
  • Effective Center Location -0.08"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 18690
  • Cup Part Number 18620
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 18600
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 11700 lbf
  • Static Radial Load 13800 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 3030 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 1940 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 0.7 lb

Features

Performance Features of 18690-18620 Bearing

18690-18620 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 11,700 lbf, ensuring reliable performance in various applications.
The steel cage maintains roller alignment, reducing friction and extending operational life.
With a temperature range of -30° to 110°C, it performs well in diverse environments.

How Does 18690-18620 Bearing Reduce Friction?

18690-18620 Bearing’s tapered roller design minimises friction, promoting smooth and efficient operation.
The chrome steel construction enhances durability while maintaining low wear rates.
Its standard radial clearance ensures optimal performance under different load conditions.
This design makes it suitable for applications requiring consistent, long-term reliability.

Engineered for Precision: 18690-18620 Bearing

18690-18620 Bearing features precise dimensions with tight tolerances for accurate performance.
The single row construction provides stability and handles both radial and thrust loads effectively.
Its ABEC-1 rating confirms consistent quality for general precision applications.
The bearing’s design ensures easy integration into various mechanical systems.

Steel vs Ceramic Bearings: Strengths of 18690-18620 Bearing

18690-18620 Bearing uses chrome steel for both rings and rollers, offering excellent strength-to-weight ratio.
This material choice provides good resistance to wear while remaining cost-effective.
The steel cage adds durability without significantly increasing weight.
With proper lubrication, it delivers reliable performance across its temperature range.

Application

Industrial Uses of 18690-18620 Bearing
The 18690-18620 Bearing is commonly used in heavy machinery like construction equipment, where its tapered roller design handles combined loads effectively. Its chrome steel construction ensures durability in demanding environments.

In automotive applications, 18690-18620 Bearing fits well in wheel hubs and differential systems, providing reliable performance under varying loads. The imperial sizing makes it a convenient choice for North American vehicle models.

For industrial conveyor systems, 18690-18620 Bearing’s open design allows for easy lubrication, extending its service life. The standard radial clearance ensures smooth operation even under continuous use.

Where Is 18690-18620 Bearing Used?
You’ll often find 18690-18620 Bearing in agricultural machinery, such as tractors and harvesters, where its robust design handles rough conditions. The steel cage adds extra strength to withstand heavy loads.

In mining equipment, 18690-18620 Bearing’s tapered rollers manage radial and thrust loads efficiently. Its ABEC-1 rating ensures consistent performance without overcomplicating the design.

For general industrial gearboxes, 18690-18620 Bearing offers a balance of durability and ease of maintenance. The inch measurements make it compatible with older machinery still using imperial standards.

Built for Heavy-Duty Use: 18690-18620 Bearing
The 18690-18620 Bearing is ideal for forklifts and other material handling equipment, thanks to its high static radial load capacity. Its simple open design simplifies inspections and relubrication.

In forestry machinery, 18690-18620 Bearing’s tapered rollers handle uneven loads from logs and rough terrain. The chrome steel rollers resist wear even in dusty or wet conditions.

For pump systems, 18690-18620 Bearing provides reliable support with its standard radial clearance. The steel cage ensures the rollers stay aligned, reducing friction and heat buildup.

Automotive vs Aerospace: Applications of 18690-18620 Bearing
In automotive drivetrains, 18690-18620 Bearing handles the combined loads of gears and shafts efficiently. Its inch sizing fits seamlessly into classic car restorations.

For aerospace ground support equipment, 18690-18620 Bearing’s durability makes it suitable for tow tractors and cargo loaders. The temperature range ensures performance in varying weather conditions.

In industrial fans, 18690-18620 Bearing’s tapered rollers manage both radial and axial loads smoothly. The open design allows for easy access during routine maintenance checks.

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