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TS (Single Row Tapered Roller Bearings) (Imperial) 645-634W

TS (Single Row Tapered Roller Bearings) (Imperial) 645-634W

The 645-634W 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 62100 lbf radially and 9980 lbf thrust, making it versatile for various applications.

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

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

Weighing 6 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it meets safety and environmental requirements.

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Product Parameters

  • Part Number 645-634W
  • 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 0.25"
  • Cup Backface ToClear Radius 0.06"
  • Cone Frontface Backing Diameter 3.87"
  • Cone Backface Backing Diameter 3.66"
  • 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 645
  • 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 lb

Features

Performance Features of 645-634W Bearing

645-634W Bearing is crafted with chrome steel rings and rollers, offering robust performance under combined loads.
Its dynamic radial load capacity reaches 62,100 lbf, making it suitable for heavy-duty applications.
The steel cage ensures proper roller alignment, enhancing durability and reducing friction.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

How Does 645-634W Bearing Reduce Friction?

645-634W Bearing’s tapered roller design minimises friction, ensuring smooth operation even under heavy loads.
The chrome steel construction and precise tolerances contribute to its efficient performance.
Its standard radial clearance options allow for optimal fit and reduced wear.
This design also helps in maintaining consistent performance over time.

Built for Reliability: 645-634W Bearing

645-634W Bearing is engineered for long-lasting performance with its chrome steel components.
It handles dynamic thrust loads up to 9,980 lbf, making it versatile for various applications.
The open design simplifies lubrication, ensuring consistent operation.
Its ABEC-1 rating guarantees dependable precision in industrial settings.

Steel vs Ceramic Bearings: Strengths of 645-634W Bearing

645-634W Bearing’s chrome steel construction provides excellent durability and load capacity.
It outperforms ceramic options in cost-effectiveness and availability for industrial use.
The tapered roller design ensures efficient load distribution, reducing stress on components.
With a weight of 6 lb, it balances strength and practicality for machinery applications.

Application

Industrial Uses of 645-634W Bearing
The 645-634W 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 645-634W Bearing Used?
You’ll often find the 645-634W Bearing in automotive applications, particularly in wheel hubs and differential systems. Its imperial sizing makes it a reliable choice for older or specialty vehicles.

Built for Heavy-Duty Use: 645-634W Bearing
This bearing excels in industrial fans and pumps, where its open design allows for easy lubrication and maintenance. The steel cage adds extra strength, making it suitable for high-load scenarios.

Automotive vs Aerospace: Applications of 645-634W Bearing
In automotive systems, the 645-634W Bearing supports axles and transmissions, while its precision also suits aerospace landing gear components. Its ABEC-1 rating balances performance and cost-effectiveness.

Perfect Fit for Automation: 645-634W Bearing
The 645-634W Bearing works well in conveyor systems and robotic arms, thanks to its smooth operation under combined loads. Its standard radial clearance ensures consistent performance in automated setups.

Q&A

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