SKF has unveiled a trio of new seal profiles for its SNL plummer block housings. For distributors and end-users an efficient and cost-effective means for their production has also been introduced.
The latest SKF seals have been developed for applications where better sealing performance is required than that provided by a labyrinth seal, but where space does not allow for a taconite seal. The new seal profiles are: TX, a single acting design with a lip seal facing outwards that prevents the ingress of contaminants while enabling grease flushing; TY, a double acting design with a lip facing outwards and a lip facing inwards; TZ, a double acting solution that features two single-lip seals in a back-to-back configuration.
• Rollers with end profiling will be successively introduced in all 241-series spherical roller bearings with bore diameters of 500 mm and above.
• Edge pressure caused by abrasive material wear is at least 20 per cent lower.
• Their use in roller presses – which are primarily used as grinding mills for cement and raw materials but also find use in the mining industry – offers lots of potential.