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TS (Single Row Tapered Roller Bearings) (Imperial) 644-634W

TS (Single Row Tapered Roller Bearings) (Imperial) 644-634W

The 644-634W is a single-row tapered roller bearing with a 2.8125″ bore and 5.375″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 62,100 lbf radially and 9,980 lbf 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 6.1 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a safe choice for most environments. The standard radial clearance ensures easy installation and maintenance.

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Product Parameters

  • Part Number 644-634W
  • Brand TFL
  • Interchangeable Timken
  • Size 2.8125" x 5.375" x 1.7814"
  • Bore Dia 2.8125"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 5.375"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 1.625"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 1.4063"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.7814"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.14"
  • Cup Backface ToClear Radius 0.06"
  • Cone Frontface Backing Diameter 3.87"
  • Cone Backface Backing Diameter 3.43"
  • Cup Frontface Backing Diameter 4.96"
  • Cup Backface Backing Diameter 4.80"
  • Cage Cone Frontface Clearance 0.1"
  • Cage Cone Backface Clearance 0.15"
  • Effective Center Location -0.44"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 644
  • Cup Part Number 634W
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 635
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 62100 lbf
  • Static Radial Load 67000 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 16100 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 9980 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 6.1 lb

Features

How Is 644-634W Bearing Engineered for Reliability?

644-634W Bearing features chrome steel rings and rollers, ensuring strength and durability under combined loads.
Its dynamic radial load capacity reaches 62,100 lbf, making it suitable for heavy-duty applications.

The tapered roller design provides effective load distribution, reducing stress on individual components.
With a standard radial clearance, it offers reliable performance across various operating conditions.

644-634W Bearing operates within a temperature range of -30° to 110°C, adapting to diverse environments.
Its steel cage maintains roller alignment, enhancing stability and prolonging service life.

Application

Industrial Uses of 644-634W Bearing
The 644-634W Bearing is commonly used in heavy machinery like construction equipment and agricultural gear, where its tapered roller design handles combined loads efficiently. Its chrome steel construction ensures durability even in demanding conditions.

Where Is 644-634W Bearing Used?
You’ll often find the 644-634W Bearing in automotive applications, particularly in wheel hubs and differential systems. Its inch sizing makes it a reliable choice for older or custom-built vehicles.

Built for Heavy-Duty Use: 644-634W Bearing
This bearing excels in industrial fans and pumps, thanks to its robust steel cage and high dynamic load capacity. The open design allows for easy lubrication, extending its service life.

Automotive vs Aerospace: Applications of 644-634W Bearing
In automotive settings, the 644-634W Bearing supports drivetrain components, while its precision makes it suitable for certain aerospace landing gear systems. The ABEC-1 rating ensures consistent performance.

Perfect Fit for Automation: 644-634W Bearing
The 644-634W Bearing works well in conveyor systems and robotic arms, where its tapered rollers manage radial and thrust loads smoothly. Its standard radial clearance offers flexibility for various setups.

Q&A

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