The Scotseal PlusXL design with extended life capabilities is the SKF premium performance seal, offering maximum sealing life under virtually all driving conditions. The new high temperature, synthetic lubricant friendly material of the new Scotseal PlusXL, Hydrogenated Nitrile Butadiene Rubber (HNBR), is an excellent choice for frequent braking applications. HNBR elastomeric material provides heat resistance up to 300 degrees F and broad compatibility with today's synthetic lubrication fluids. The unsurpassed exclusion properties allow the Scotseal PlusXL to perform in very harsh conditions. The new Scotseal PlusXL with the unique hand-installable design includes a fat footprint ensuring stability on the shaft. SKF seals have been on the road for more than a hundred years, keeping lubricants in and contaminants out. All SKF products meet or exceed test requirements to ensure the longest life possible.