TS (Single Row Tapered Roller Bearings) (Imperial) 639-633

TS (Single Row Tapered Roller Bearings) (Imperial) 639-633

The 639-633 is a single-row tapered roller bearing with a 2.5″ bore and 5.125″ outer diameter, crafted from durable chrome steel. It handles combined loads up to 62100 lbf radially and 9980 lbf thrust, making it robust for heavy-duty use.

Its open design allows 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 applications like gearboxes or industrial machinery where combined loads are common.

Weighing 5.5 lb, it’s sturdy yet manageable for its size. Compliant with RoHS and REACH standards for safe and eco-friendly use.

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Product Parameters

  • Part Number 639-633
  • Brand TFL
  • Interchangeable Timken
  • Size 2.5" x 5.125" x 1.625"
  • Bore Dia 2.5"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 5.125"
  • 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 3.54"
  • Cone Backface Backing Diameter 3.19"
  • Cup Frontface Backing Diameter 4.89"
  • Cup Backface Backing Diameter 4.57"
  • 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 633
  • 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 5.5 lb

Features

Performance Features of 639-633 Bearing

639-633 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 demanding conditions.

The steel cage maintains roller alignment, reducing friction and extending service life.
With a temperature range of -30° to 110°C, it performs well in various environments.

639-633 Bearing requires lubrication, but its robust design minimises maintenance needs.
Its standard radial clearance makes it versatile for different applications.

Application

Industrial Uses of 639-633 Bearing
The 639-633 Bearing is commonly used in heavy machinery, such as construction equipment and agricultural gear, where its tapered roller design handles combined loads effectively. Its chrome steel construction ensures durability in demanding environments.

In automotive applications, 639-633 Bearing fits well in wheel hubs and drivetrains, providing reliable performance under radial and thrust loads. The inch sizing makes it compatible with many North American vehicle models.

For industrial conveyor systems, 639-633 Bearing’s open design allows for easy lubrication, extending service life in high-load scenarios. The steel cage adds stability during continuous operation.

Where Is 639-633 Bearing Used?
You’ll often find 639-633 Bearing in mining equipment, where its robust design handles harsh conditions. The tapered rollers distribute loads evenly, reducing wear over time.

In manufacturing plants, 639-633 Bearing supports machinery like presses and gearboxes. Its ABEC-1 rating ensures consistent performance for general industrial applications.

Built for Heavy-Duty Use: 639-633 Bearing
The 639-633 Bearing excels in applications like forklifts and cranes, where its high dynamic load capacity is essential. The chrome steel rollers resist deformation under stress.

For forestry equipment, 639-633 Bearing’s standard radial clearance accommodates slight misalignments. Its temperature range suits both cold and moderate operating conditions.

Automotive vs Aerospace: Applications of 639-633 Bearing
In automotive systems, 639-633 Bearing is ideal for axles and transmissions, balancing radial and thrust loads. Its inch measurements align with imperial-sized components.

While not typically used in aerospace, 639-633 Bearing suits ground support equipment. The steel cage and chrome steel rollers ensure reliability in less critical roles.

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