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TS (Single Row Tapered Roller Bearings) (Imperial) 3189-3129

TS (Single Row Tapered Roller Bearings) (Imperial) 3189-3129

The 3189-3129 is a single-row tapered roller bearing with a 1″ bore and 3″ outer diameter, crafted from sturdy chrome steel. It manages combined loads up to 21300 lbf radially and 3140 lbf in thrust, making it versatile for various applications.

Its open design allows easy lubrication, while the steel cage ensures durability under heavy use. The bearing operates smoothly in temperatures ranging from -30°C to 110°C.

This model is interchangeable with Timken bearings, offering a reliable replacement option. Ideal for machinery like gearboxes or axles where combined loads are common.

Weighing 1.6 lb, it balances strength and portability. Compliant with RoHS and REACH standards for safe and eco-friendly use.

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Product Parameters

  • Part Number 3189-3129
  • Brand TFL
  • Interchangeable Timken
  • Size 1" x 3" x 1.1876"
  • Bore Dia 1"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 1.181"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.9375"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.1876"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.03"
  • Cup Backface ToClear Radius 0.03"
  • Cone Frontface Backing Diameter 1.38"
  • Cone Backface Backing Diameter 1.4"
  • Cup Frontface Backing Diameter 2.74"
  • Cup Backface Backing Diameter 2.56"
  • Cage Cone Frontface Clearance 0.06"
  • Cage Cone Backface Clearance 0.03"
  • Effective Center Location -0.4"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 3189
  • Cup Part Number 3129
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 3100
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 21300 lbf
  • Static Radial Load 22800 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 5520 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 3140 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 1.6 lb

Features

Performance Features of 3189-3129 Bearing

3189-3129 Bearing is crafted with chrome steel rings and rollers, offering robust performance under combined loads.
Its dynamic radial load capacity reaches 21,300 lbf, making it suitable for heavy-duty applications.

The tapered roller design ensures smooth operation and efficient load distribution.
With a standard radial clearance, it provides reliable performance in various conditions.

3189-3129 Bearing operates within a temperature range of -30° to 110°C, ensuring versatility.
The steel cage maintains roller alignment, reducing wear and extending service life.

This bearing requires lubrication, but its durable construction minimises maintenance needs.
Its ABEC-1 rating guarantees consistent precision for industrial applications.

Application

Common Applications of 3189-3129 Bearing
In industrial settings, 3189-3129 Bearing is widely used in conveyor systems and heavy machinery, where its tapered roller design handles combined loads efficiently. The chrome steel construction ensures durability even in demanding environments.
For automotive applications, 3189-3129 Bearing fits well in wheel hubs and differential systems, providing reliable performance under varying loads. Its inch sizing makes it compatible with many American-made vehicles.
In agricultural equipment, 3189-3129 Bearing supports components like gearboxes and PTO shafts, where its robust design withstands harsh conditions. The open seal type allows for easy lubrication, extending service life.

Why Is 3189-3129 Bearing Essential in Machinery?
3189-3129 Bearing plays a key role in construction equipment, such as excavators and loaders, due to its ability to manage both radial and thrust loads. The steel cage adds extra strength for heavy-duty use.
In mining operations, 3189-3129 Bearing is often found in crushers and screens, where its standard radial clearance ensures smooth operation. The ABEC-1 rating balances precision and cost-effectiveness for these applications.

Built for Heavy-Duty Use: 3189-3129 Bearing
3189-3129 Bearing is a go-to choice for forestry machinery, like log splitters and sawmills, thanks to its high dynamic load capacity. The tapered rollers distribute stress evenly, reducing wear.
For material handling systems, 3189-3129 Bearing offers reliable performance in pulley assemblies and lifting gear. Its temperature range of -30° to 110°C makes it suitable for diverse working conditions.

Automotive vs Industrial: Where 3189-3129 Bearing Excels
In truck transmissions, 3189-3129 Bearing handles high torque loads while maintaining smooth rotation. The interchangeable Timken design simplifies replacements and repairs.
For industrial fans and blowers, 3189-3129 Bearing provides stable support at moderate speeds. Its standard width of 1.1876″ fits common housing designs without modification.

Perfect Fit for Automation: 3189-3129 Bearing
3189-3129 Bearing works well in packaging machinery, where consistent performance is needed for repetitive motions. The chrome steel rollers resist deformation under continuous use.
In food processing equipment, 3189-3129 Bearing’s open design allows for thorough cleaning, meeting hygiene standards. The steel cage prevents contamination from loose particles.

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