Single-Row Roller Bearing
Self-aligning single row spherical roller bearings
A single-row roller bearing is chosen for higher rotational speeds and lower loads, with the added benefit of integrated seals that keep the rolling elements protected even when the housing seals wear.
High-speed performance with integrated sealing
A single-row roller bearing is chosen for higher rotational speeds and lower loads. An additional advantage of this single-row bearing is that the bearing itself is sealed. This means that if the seals in the bearing housing wear out and allow contaminants to enter, the rolling elements inside the bearing are still protected.
Advantages compared to a double-row roller bearing
- Higher rotational speed capability
- Lower friction and reduced heat generation
- Lower running resistance and improved efficiency
- Integrated seals for additional contamination protection
- Better suited for applications with lower to moderate loads
❌ Disadvantages of Single-Row Bearings
Lower load capacity
Handles less radial and axial load than double-row bearings, making it less suitable for heavy-duty use.
Shorter service life under heavy load
Higher stress per roller leads to faster wear in demanding applications.
Lower stiffness
More deformation under load, reducing precision in heavy or shock-loaded systems.
Less stability under misalignment
Performs slightly worse when shaft deflection or housing misalignment is high.
Not suitable for heavy industry
Mainly used in light to medium-duty applications instead of mining, steel, or conveyor systems.
Type E bearing provide a triple barrier bearing labyrinth seal prevent contamination from entering the bearing unit.
Type E bearing seals are designed to provide an extra barrier to prevent contamination from entering the bearing. In fact, an Extreme Bearing unit with a Type E insert offers superior triple protection from harsh environments and extreme conditions.As standard, Type E bearings feature 2-RS bearing seals which differentiate this type from the unsealed Type T double row spherical roller bearings. These Type E bearing seals and the lubricant are integrated into one system, so that the bearing can be kept sealed and greased for its lifetime without the need to refill. The grease nipple on the bearing housing is intended to fill the rest of the Extreme Bearing housing with grease and so prevent water and contaminants from entering.
Triple protection to shield the bearing:
- Bearing housing seals
- Grease-filled housing
- Bearing insert seals
Firstly, the housing seal made of rubber attached to the shaft provides a primary barrier. It repels dirt and contaminants using the centrifugal force generated by the shaft. Secondly, the bearing housing is filled with grease to prevent contaminants from entering and damaging the bearing. Finally, there is a type of bearing seal called 2-RS to protect the bearing.