高温调心滚子轴承系列

高温调心滚子轴承系列

SKF solutions for extreme temperature applications

SKF solid lubricant solutions – a dry alter

In some applications, the best lubricant is not petroleum based. These include extremely high temperature applications that cause lubricants to melt or evaporate and low temperature applications where grease becomes ineffective. Applications include roll-out tables and reheat furnaces in steel mills and kilns and dryers used to manufacture building materials. For these challenging environ-ments, SKF offers a dry alternative: a solid, graphite-based lubricant compound (designation suffix VA210) and a self-sacri- ficing graphite cage (designation suffix VA228).

A lubricant and seal in one

SKF VA210 is a graphite-based lubricant compound that is packed into the free space of a bearing and heated until it solidifies. Because the compound takes up the entire free space in the bearing, it protects the rolling elements and raceways from damage caused by contaminants. In effect, it acts as two products

in one: a lubricant and a seal.

For applications where corrosion

resistance is important, the

graphite-based lubricant can be

impregnated with a polymer

(VA2101). The polymer

improves corrosion

resistance and speed

capability of the

bearing.

Outstanding performance

Bearings packed with the SKF dry lubricant graphite compound

-provide exceptional extreme-temperature performance, including:

Increased reliability

Because the graphite compound acts as both a seal and a lubri-cant, reliability is improved in applications where standard rubber seals cannot be used.

Higher speeds

Can accommodate speeds of up to 2 000 r/min. For higher speed -applications, contact the SKF application engineering service.

Reduced friction

The graphite compound operates with virtually zero frictional -moment, to significantly reduce energy consumption and heat generation.

Maintenance-free

Bearings packed with the dry graphite compound require no lubrication-related maintenance.

High load carrying capacity

The graphite compound does not limit the radial load carrying

capacity- of the bearing. It does, however, have limited axial load

-carrying capacity and can accommodate only very minor amounts of misalignment.

Environmentally friendly

Because the standard graphite compound is made from natural

materials,- it does not present a hazard to the environment. And -because it is a dry, non-petroleum based solid, there is no grease to purchase or dispose of, and no leakage.