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TS (Single Row Tapered Roller Bearings) (Imperial) 639-634W

TS (Single Row Tapered Roller Bearings) (Imperial) 639-634W

The 639-634W is a single row tapered roller bearing with a 2.5″ bore and 5.375″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 62100 lbf radially and 9980 lbf thrust, making it a versatile choice.

Its open design allows for easy lubrication, while the steel cage ensures durability. 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 heavy-duty applications like truck axles or industrial gearboxes where combined loads are common.

Weighing 6.7 lb, it’s built to last with standard radial clearance and ABEC-1 precision. Compliant with RoHS and REACH standards for safe use.

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Product Parameters

  • Part Number 639-634W
  • Brand TFL
  • Interchangeable Timken
  • Size 2.5" x 5.375" x 1.7814"
  • Bore Dia 2.5"
  • 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 3.54"
  • Cone Backface Backing Diameter 3.19"
  • 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 639
  • 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 6.700 lb

Features

Engineered for Precision: 639-634W Bearing

639-634W Bearing features a single-row tapered roller design, ideal for handling combined loads with precision.
Its chrome steel construction ensures durability and resistance to wear in demanding applications.

The bearing’s dynamic radial load capacity reaches 62,100 lbf, making it suitable for heavy-duty tasks.
With a static radial load of 67,000 lbf, it provides reliable performance under extreme conditions.

639-634W Bearing operates efficiently within a temperature range of -30° to 110°C.
Its standard radial clearance options allow for flexibility in various industrial applications.

The steel cage maintains roller alignment, reducing friction and extending service life.
Easy to install and maintain, 639-634W Bearing is a practical choice for machinery requiring high precision.

Application

Industrial Uses of 639-634W Bearing
The 639-634W 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 environments.

Where Is 639-634W Bearing Used?
You’ll often find 639-634W Bearing in automotive applications, particularly in wheel hubs and differential systems, where its high load capacity keeps things running smoothly. The inch sizing makes it a go-to choice for American-made vehicles.

Built for Heavy-Duty Use: 639-634W Bearing
In industrial settings, 639-634W Bearing excels in conveyor systems and gearboxes, thanks to its robust steel cage and open design for easy lubrication. It’s a reliable pick for long-term performance.

Automotive vs Aerospace: Applications of 639-634W Bearing
While 639-634W Bearing is a staple in truck axles and heavy vehicles, its precision also suits aerospace ground support equipment. The ABEC-1 rating balances performance and cost for diverse needs.

Key Fields for 639-634W Bearing
From mining machinery to railway components, 639-634W Bearing’s static radial load capacity of 67,000 lbf makes it a trusted choice. Its standard radial clearance adapts well to varying operational conditions.

Q&A

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