Four-row tapered roller bearings

  • Four-row tapered roller bearings, the performance of such bearings and double-row tapered roller bearings are basically the same, but than double-row tapered roller bearings to bear the radial load is greater, the limit speed is slightly lower, mainly for heavy machinery.
  • Four-row tapered roller bearings can withstand low to medium speed combined (radial and axial) load. They are used almost exclusively in work roll applications such as rolling mills.
Four-row tapered roller bearings

Products of Four-row tapered roller bearings

Features and Benefits

  • Long service life
    Four-cup design (four independent outer rings) provides optimal load distribution on all four rows of rollers
  • Increased operational reliability
    Optimized surface finish of roller and raceway contact surfaces supports hydrodynamic lubrication film formation
  • Improved wear resistance
    In particular, SKF Explorer bearings are made of extremely clean and homogeneous steel and are uniquely heat treated for improved wear resistance.
  • Improved sealing performance reduces leakage and frictional heat
    The optimized seal design ensures a high degree of protection from external contamination while maintaining low friction and frictional heat. This seal design also allows for better retention of lubricant, minimizing environmental impact and reducing maintenance costs.
  • Sealed bearings and open bearings have the same load carrying capacity
    Optimized and compact seal design allows for the same internal design
  • Complete bearing interchangeability
    Bearings with and without intermediate rings as well as open and sealed bearings have the same external dimensions. This allows complete interchangeability of current standard design bearings with those without intermediate rings and/or with optimized seal designs.
  • Separable mounting and simpler inspection–Four-row tapered roller bearings
    The optimized design without intermediate rings allows for disassembly and separation of the cage and roller assembly and seals. This facilitates installation, disassembly and maintenance inspection procedures.
  • Space saving and cost effective solution for axial roller journals
    The roll neck can be relatively short, eliminating the need for a separate axial bearing and allowing the use of identically designed bearing housings on both sides of the roll.
  • Simple axial positioning on the roll neck
    Tighter tolerances for the width of the inner ring contribute to the tolerances and dimensioning of the surrounding components.


  • Double row/Single row tapered roller bearings are mainly used in gearboxes, lifting equipment, steel rolling mills and for mining machinery, such as pit boring machines. In the front wheel hub of the car, the small size of double row tapered roller bearings are used

  • Four-row tapered roller bearings four-row tapered roller bearings used in large cold, hot rolling mills and other heavy machinery. Mainly used in heavy machinery.

Applications of W 618/0.6 Bearings
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Wind Turbines
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Steel Industry
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Food Processing Machinery
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Mining & Construction
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Electric motors and generators


Loads are defined by their direction. Loads perpendicular to the shaft are called radial loads and loads parallel to the shaft are called axial (thrust) loads.

Successful mounting is critical to the life cycle of your bearing. Proper bearing dismounting can safeguard other machine components and maintenance workers.

  1. The bearing is at the heart of all rotating equipment, and the condition of the bearing often reflects how well a machine is running.
  2. Learn more about bearing damage and bearing failure – and how to prevent it.

Sure, free samples are available for stock products if you can pay for the shipping cost.

We have regular stock for standard bearings that can be shipped right after your payment. It will take 15-60 days for new production order,which depends on your order quantity.

  1. All our bearings are 100% inspected strictly before packing.
  2. If any defective products received, please provide photos and video to show us the problem and help us improve the quality.
  3. New products will be sent to you as replacement if the probelm is product quality.
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