A complete range of sizes, types and designs with its spindle ball bearings in standard sizes S, SM and KH.

High-quality and cost-efficient spindle bearing solutions for a variety of operating-related requirements on the basis of its broad offering.

Product features S Design

• Standard spindle bearings
• High RPM suitability and rigidity
• High cost-efficiency and reliability
• Standard contact angles of 15° and 25°
• Reference RPM factor n x dm = 1.7 x 106 mm/min
• High load rating
• Also available as hybrid ball bearings

We offer a broad product range in the S series in regards to dimensions, suitable RPM and load capabilities.

S Design

Product features SM Design

• Optimized internal ring lubrication for high RPMs
• High service life due to minimized friction
• High operating safety with temperature influence due to high radial bearing clearance
• High radial clearance for high-speed applications
• Low operating temperature due to low friction
• Standard contact angles depending on internal diameter are 15°, 17° or 19°
• Reference RPM factor n x dm = 2.0 x 10⁶ mm/min
• Also available as hybrid ball bearings

The SM series offers nearly 20% higher RPMs due to its optimized internal geometry as compared to the S series.

SM Design

Product features KH Design

• Sealed: with grease life lubrication (standard lubrication Lubcon HS Turmogrease L252 or customer-specific greasing)
• Open: for oil lubrication
• Optimized for highest speeds
• Low operating temperature due to optimized raceway geometry
• High operational safety with temperature influence due to high radial bearing clearance
• Optimized ratio of the number of balls and the ball diameter to the load rating
• Optimized internal geometry regarding grease space and oil lubrication
• Standard contact angles are 15°, 17° and 25°
• No speed reduction thanks to non-contact seals (seals are temperature-stable up to 120 °C)
• No grease outlet for vertical or inclined installation position
• Reduced grease desiccation due to ventilation
• Saves additional sealing elements
• Less sensitive to assembly site contamination
• Reference speed factor n x dm = 2.1 x 106 mm/min
• Also available as hybrid ball bearings

The KH series provides outstanding characteristics in regards to RPM, life expectancy and cost-effectiveness thanks to its optimized bearing geometry.

KH Design