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TS (Single Row Tapered Roller Bearings) (Imperial) 643-632

TS (Single Row Tapered Roller Bearings) (Imperial) 643-632

The 643-632 is a single-row tapered roller bearing with a 2.75″ bore and 5.375″ outer diameter, crafted from robust chrome steel. It handles combined loads up to 62100 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 use. The bearing is interchangeable with Timken models, making it a versatile replacement option.

With standard radial clearance and ABEC-1 rating, it offers reliable performance for industrial applications. Ideal for gearboxes, axles, or machinery where combined radial and thrust loads are present.

Weighing 5.8 lb, it’s a sturdy choice for demanding environments. Compliant with RoHS and REACH standards for safe and eco-friendly use.

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Product Parameters

  • Part Number 643-632
  • Brand TFL
  • Interchangeable Timken
  • Size 2.75" x 5.375" x 1.625"
  • Bore Dia 2.75"
  • 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 1.25"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.625"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.14"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 3.82"
  • Cone Backface Backing Diameter 3.39"
  • Cup Frontface Backing Diameter 4.96"
  • Cup Backface Backing Diameter 4.65"
  • 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 643
  • Cup Part Number 632
  • 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 5.8 lb

Features

Performance Features of 643-632 Bearing

643-632 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 62,100 lbf, ensuring reliable performance in heavy-duty applications.
The steel cage maintains proper roller alignment, reducing friction and extending operational life.
With a temperature range of -30° to 110°C, it performs well in various environmental conditions.

Why Choose 643-632 Bearing for Precision Tasks?

643-632 Bearing’s tapered roller design provides precise load distribution, enhancing stability during operation.
The chrome steel construction ensures durability while maintaining smooth performance under stress.
Its standard radial clearance allows for consistent operation in different applications.
The bearing meets ABEC-1 standards, balancing precision and cost-effectiveness.

Engineered for Reliability: 643-632 Bearing

643-632 Bearing features a single-row construction, simplifying installation and maintenance.
Its dynamic thrust rating of 9,980 lbf ensures dependable performance in demanding conditions.
The steel cage and chrome steel rollers work together to minimise wear over time.
With a weight of 5.8 lb, it offers a robust solution without unnecessary bulk.

Application

Industrial Uses of 643-632 Bearing
The 643-632 Bearing is commonly used in heavy machinery like construction equipment, where its tapered roller design handles combined loads efficiently. Its chrome steel construction ensures durability even in demanding environments.

Where Is 643-632 Bearing Used?
You’ll often find the 643-632 Bearing in agricultural machinery, such as tractors and harvesters, where its robust design supports high radial and thrust loads. The inch sizing makes it a good fit for older American-made equipment.

Built for Heavy-Duty Use: 643-632 Bearing
In mining applications, the 643-632 Bearing excels in conveyor systems, thanks to its ability to withstand harsh conditions. The steel cage adds extra strength, making it reliable for continuous operation.

Automotive vs Aerospace: Applications of 643-632 Bearing
While the 643-632 Bearing is popular in truck wheel hubs, it’s also suitable for aerospace ground support equipment. Its standard radial clearance offers flexibility for various load requirements.

Key Fields for 643-632 Bearing
The 643-632 Bearing is a go-to choice for industrial fans and blowers, where its tapered rollers reduce friction. The open design allows for easy lubrication, extending its service life.

Q&A

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