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TS (Single Row Tapered Roller Bearings) (Imperial) 43118-43312

TS (Single Row Tapered Roller Bearings) (Imperial) 43118-43312

The 43118-43312 is a single-row tapered roller bearing with a 1.1875″ bore and 3.125″ outer diameter, crafted from durable chrome steel. It handles combined loads up to 20700 lbf radially and 6130 lbf thrust, making it suitable for heavy-duty applications.

Its open design allows for 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 use in gearboxes, axles, or industrial machinery where combined loads are present.

Weighing 1.3 lb, it’s sturdy yet manageable for its size. Compliant with RoHS and REACH standards for safe and environmentally friendly use.

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Product Parameters

  • Part Number 43118-43312
  • Brand TFL
  • Interchangeable Timken
  • Size 1.1875" x 3.125" x 1"
  • Bore Dia 1.1875"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.125"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 0.9478"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.6875"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.06"
  • Cup Backface ToClear Radius 0.06"
  • Cone Frontface Backing Diameter 1.65"
  • Cone Backface Backing Diameter 1.77"
  • Cup Frontface Backing Diameter 2.94"
  • Cup Backface Backing Diameter 2.64"
  • Cage Cone Frontface Clearance 0.13"
  • Cage Cone Backface Clearance 0.1"
  • Effective Center Location -0.08"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 43118
  • Cup Part Number 43312
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 43000
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 20700 lbf
  • Static Radial Load 17100 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 5360 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 6130 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 1.3 lb

Features

Performance Features of 43118-43312 Bearing

43118-43312 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 20,700 lbf, making it suitable for heavy-duty applications.

The single-row tapered roller design ensures effective load distribution, enhancing durability.
With a temperature range of -30° to 110°C, it performs reliably in various operating conditions.

43118-43312 Bearing features a steel cage, keeping the rollers aligned for smooth operation.
Its standard radial clearance options provide flexibility for different installation needs.

Application

Industrial Uses of 43118-43312 Bearing
The 43118-43312 Bearing is widely 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 even in demanding environments, making it a reliable choice for long-term use.

Where Is 43118-43312 Bearing Used?
You’ll often find the 43118-43312 Bearing in automotive applications like wheel hubs and differential systems, thanks to its ability to manage both radial and thrust loads.
The inch sizing makes it compatible with many North American vehicle models, offering flexibility in repairs and upgrades.

Built for Heavy-Duty Use: 43118-43312 Bearing
In industrial settings, the 43118-43312 Bearing excels in conveyor systems and gearboxes, where its steel cage provides stability under high stress.
The open design allows for easy lubrication, ensuring smooth operation over extended periods.

Automotive vs Aerospace: Applications of 43118-43312 Bearing
While the 43118-43312 Bearing is common in automotive systems like axles, its precision also suits aerospace components requiring consistent performance.
The ABEC-1 rating ensures adequate precision for both industries, balancing cost and reliability.

Perfect Fit for Automation: 43118-43312 Bearing
The 43118-43312 Bearing works well in automated machinery, such as robotic arms, where its tapered rollers provide smooth motion control.
Its standard radial clearance options make it adaptable to various operational needs.

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