Low Density Hybrid Ball Bearing F-HC808548.KL with Silicon Nitride Ceramic Balls

Designation: F-HC808548.KL

Type: Hybrid deep groove ball bearings

Dimension: 300*380*38mm

Suffix of Hybrid Ball Bearings 

HC: Ceramic rolling elements

Weight: 8.5kg

Application: Spreader Rolls

Elements: Ceramic Balls Silicon Nitride

In standard deep groove ball bearings with steel balls, the combination of materials (steel/steel – high adhesion) enhances wear in the event of lubricant film breakdowns as a result of slippage, significantly reducing the life of the bearings.

In order to achieve a satisfactory bearing life even in the difficult operating conditions prevailing in the high-speed range, with a risk of slippage, hybrid deep groove ball bearings (rolling bearing steel rings, ceramic balls) are used.

To reduce the revolving masses (ball-cage assembly), only half the number of balls is provided. This means that a higher load acts on each ceramic ball, reducing the risk of slippage.

These are the defining features of our hybrid bearings

• Efficient protection against current passage – ceramic (silicon nitride) rolling elements have an insulating effect due to their high electrical resistance and prevent electrical erosion.

• Designed for higher speeds – the ceramic rolling elements have a lower density and exhibit reduced friction, enabling up to 20% higher limiting speeds than those achievable with standard bearings.

• Resistant, even in cases of inadequate lubrication – lower operating temperatures and reduced friction double the grease service life and lead to a reduction in product-specific life cycle costs of up to 20% compared with bearings containing steel rolling elements.

• Particularly wear-resistant – good emergency running characteristics enabled by low adhesion and low friction protect the hybrid bearings against adhesive wear in cases of inadequate lubrication or dry running. The bearings also

exhibit high levels of wear resistance in the presence of low loads and under slippage conditions.

• Protecting effect on the environment and climate – CO2 emissions in the application are reduced as a result of the reduced friction and lower weight of the hybrid bearings.