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9178 Single Cones (Imperial)
9178 Single Cones (Imperial)

9178 Single Cones (Imperial)

The 9178 single cones are tapered roller bearings with a 2.4375″ bore, designed for combined loads. Made from durable chrome steel, they handle dynamic radial loads up to 64200 lbf and static loads up to 68700 lbf.

Their open design allows easy maintenance, while the steel cage ensures reliable performance. The bearings operate smoothly in temperatures from -30°C to 110°C.

These cones are interchangeable with Timken models, making them a practical choice for replacements. Ideal for heavy-duty applications like industrial gearboxes or axle systems where combined loads are common.

With standard radial clearance and ABEC-1 rating, they offer a balance of precision and durability. Compliant with RoHS and REACH standards for safe use.

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Product Parameters

  • Part Number 9178
  • Brand TFL
  • Interchangeable Brand Timken
  • System of Measurement Inch
  • Type Cones
  • Bearing Part Number 9178-9120 , 9178-9121
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Bore Dia 2.4375"
  • Bore Dia Tolerance +0.005" to 0
  • Cone Width 2.0625"
  • Cone Width Tolerance +0.003" to -0.01
  • Cone Backface ToClear Radius 0.14"
  • Cone Frontface Backing Diameter 3.2"
  • Cone Backface Backing Diameter 3.54"
  • Cage Cone Frontface Clearance 0.14"
  • Cage Cone Backface Clearance 0.47"
  • Effective Center Location -0.33"
  • Ring Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 64200 lbf
  • Static Radial Load 68700 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 16600 lbf
  • Dynamic Radial Rating(Two Row 1 Million Revolutions)(C1) 112000 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 18700 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions)(C90) 29000 lbf
  • Temperature Range -30° to 110 °C
  • ABEC Rating ABEC-1
  • Radial Clearance Standard (Available in C3/C4/C5)
  • RoHS Compliant
  • REACH Compliant

Features

How Is 9178 Bearing Engineered for Reliability?

9178 Bearing features chrome steel rings and a steel cage, ensuring durability under combined loads.
Its dynamic radial load capacity reaches 64,200 lbf, making it suitable for heavy-duty applications.

The tapered roller design of 9178 Bearing reduces friction, enhancing efficiency and longevity.
With a temperature range of -30° to 110°C, it performs reliably in various operating conditions.

9178 Bearing’s standard radial clearance options provide flexibility for different installation needs.
Its robust construction and precise tolerances ensure consistent performance over time.

Application

Industrial Uses of 9178 Single Cones
The 9178 Single Cones are commonly used in heavy machinery, such as construction equipment and mining gear, where their tapered roller design handles combined loads efficiently. Their chrome steel construction ensures durability in demanding environments.

In automotive applications, 9178 Single Cones support axle systems and wheel hubs, providing reliable performance under high radial and thrust loads. The inch sizing makes them compatible with many North American vehicle models.

For industrial conveyor systems, 9178 Single Cones offer smooth operation and long service life, thanks to their robust steel cage and precise tolerances. They’re a practical choice for maintaining consistent performance in high-load scenarios.

Where Is 9178 Single Cones Used?
You’ll often find 9178 Single Cones in agricultural machinery, like tractors and harvesters, where their ability to handle combined loads is essential. The open design allows for easy lubrication and maintenance.

In railway applications, 9178 Single Cones are trusted for their reliability in axle boxes, ensuring smooth and safe operation. Their ABEC-1 rating balances precision and cost-effectiveness for these heavy-duty uses.

Built for Heavy-Duty Use: 9178 Single Cones
The 9178 Single Cones excel in forestry equipment, such as log splitters and sawmills, where their dynamic load capacity keeps operations running smoothly. Their steel cage adds extra resilience in rough conditions.

For wind turbine gearboxes, 9178 Single Cones provide stable performance under varying loads and speeds. The standard radial clearance option ensures compatibility with most industrial setups.

Automotive vs Aerospace: Applications of 9178 Single Cones
In automotive drivetrains, 9178 Single Cones handle high torque and radial loads, making them ideal for trucks and off-road vehicles. Their inch measurements align with many US-made components.

While less common in aerospace, 9178 Single Cones can be found in ground support equipment, where their robustness is valued. The temperature range suits most outdoor operating conditions.

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