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TS (Single Row Tapered Roller Bearings) (Imperial) 67780-67720

TS (Single Row Tapered Roller Bearings) (Imperial) 67780-67720

The 67780-67720 is a single-row tapered roller bearing with a 6.5″ bore and 9.75″ outer diameter, crafted from sturdy chrome steel. It manages combined loads up to 91100 lbf and is designed for long-lasting performance.

Its open design allows 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, making it a practical choice for replacements. Suitable for heavy-duty applications like industrial machinery or vehicle axles where combined loads are common.

Weighing 17.6 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe use.

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Product Parameters

  • Part Number 67780-67720
  • Brand TFL
  • Interchangeable Timken
  • Size 6.5" x 9.75" x 1.875"
  • Bore Dia 6.5"
  • Bore Dia Tolerance +0.001" to 0
  • Outer Dia 9.75"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 1.875"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 1.5"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.875"
  • Width Tolerance +0.014" to -0.01"
  • Cone Backface ToClear Radius 0.14"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 7.99"
  • Cone Backface Backing Diameter 7.28"
  • Cup Frontface Backing Diameter 9.48"
  • Cup Backface Backing Diameter 9.02"
  • Cage Cone Frontface Clearance 0.11"
  • Cage Cone Backface Clearance 0.17"
  • Effective Center Location 0.19"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 67780
  • Cup Part Number 67720
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 67700
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 91100 lbf
  • Static Radial Load 175000 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 23600 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 17800 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 17.6 lb

Features

Performance Features of 67780-67720 Bearing

67780-67720 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 91,100 lbf, making it suitable for heavy-duty applications.
The steel cage ensures proper roller alignment, reducing friction and enhancing durability.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

How Does 67780-67720 Bearing Resist Wear?

67780-67720 Bearing’s chrome steel construction provides excellent wear resistance, even under high stress.
The tapered roller design distributes loads evenly, minimising surface fatigue.
Its standard radial clearance allows for smooth operation, reducing friction-related wear.
This design ensures long service life in demanding industrial environments.

Engineered for Precision: 67780-67720 Bearing

67780-67720 Bearing features precise tolerances, with bore and outer diameter tolerances of +0.001″ to 0.
The effective center location of 0.19″ ensures accurate alignment in assembly.
Its ABEC-1 rating guarantees consistent performance for general precision applications.
The bearing maintains reliability across its wide operating temperature range.

Steel vs Ceramic Bearings: Strengths of 67780-67720 Bearing

67780-67720 Bearing uses chrome steel for both rings and rollers, offering excellent strength-to-weight ratio.
This material choice provides better impact resistance compared to ceramic alternatives.
The steel construction handles heavy dynamic radial loads up to 91,100 lbf effectively.
It’s a cost-effective solution for applications requiring durability and load capacity.

Application

Industrial Uses of 67780-67720 Bearing
67780-67720 Bearing is commonly used in heavy machinery like construction equipment, where its tapered roller design handles combined loads effectively. The chrome steel construction ensures durability in demanding environments.

In automotive applications, 67780-67720 Bearing supports large axles and wheel hubs, providing reliable performance under heavy radial and thrust loads. Its inch sizing makes it compatible with many North American vehicle designs.

For industrial gearboxes, 67780-67720 Bearing’s open design allows for easy lubrication, extending service life in high-speed operations. The steel cage adds stability during prolonged use.

Why Is 67780-67720 Bearing Essential in Machinery?
67780-67720 Bearing plays a key role in mining equipment, where its robust design withstands extreme loads and vibrations. The tapered rollers distribute stress evenly, reducing wear.

In agricultural machinery, 67780-67720 Bearing ensures smooth operation in tractors and harvesters, even in dusty conditions. Its standard radial clearance adapts well to varying temperatures.

Built for Heavy-Duty Use: 67780-67720 Bearing
67780-67720 Bearing excels in railway applications, supporting axle loads with its high static radial capacity. The chrome steel rollers resist deformation under pressure.

For wind turbine systems, 67780-67720 Bearing’s ABEC-1 rating provides sufficient precision for rotational stability. Its temperature range suits both cold and moderate climates.

Automotive vs Aerospace: Applications of 67780-67720 Bearing
In trucks and buses, 67780-67720 Bearing handles heavy payloads with its 175,000 lbf static load rating. The inch measurements align with commercial vehicle standards.

While not typically used in aerospace, 67780-67720 Bearing’s reliability makes it suitable for ground support equipment. Its steel cage withstands frequent load changes.

Q&A

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