Marathon chains for extreme conditions: safe, maintenance-free, durable
Apart from availability, operational safety and reliability, the fact that components are maintenance-free is getting more and more important in machine and plant construction. The use of Marathon chains always makes sense where relubrication of roller chains is either not possible or not desired, but where, nevertheless, a long life cycle is required.
For application areas with certain chain speeds and operating temperatures Wippermann can provide optimal solutions with Marathon chains. They work with a porous, oil-soaked sintered bushing, which is combined with a specially-coated pin to form a self-lubricating chain joint.
The dimensions of Marathon chains are according to ISO 606 so that every standard roller chain can be replaced by a Marathon chain. The breaking load of a Marathon chain exceeds the requirements of respective standards and is comparable to Wippermann standard chains as regards fatigue resistance.
Apart from the standard roller chains according to ISO 606, the Marathon range also comprises roller chains type series GL with straight plates, double-pitch roller chains according to ISO 1275 and accumulator chains.
Technical features
- Up to 35 times longer wear life in comparison with other standard roller chains without lubrication
- Up to 5 times longer wear life than other maintenance-free chains
- No relubrication required
- Clean application with no soiling of machinery and transported goods
- Joint bushings made with a new type of sintered metal with high strength treated with a special lubricant
- High-performance bearing joints
- Bushings longer than the width of the chain link with sliding contact to the outer plate
- The pins forming the joints with these bushings are made of alloyed hardened steel and are treated with a special coating.
- The resulting high-wearing coat guarantees an excellent sliding performance.
- Same tensile strength as with WIPPERMANN standard chains
- All MARATHON chains fit standard sprockets
Areas of application
- Temperatures from 0°C to +100°C
- With special lubrication from -30°C to +250°C
(after consultation) - Speeds of up to v = 150 m/min.
- Electrical industry
- Production of printed circuit boards (PCBs)
- Television industry
- Packing industry
- Paper processing
- Printing industry
- Bookbinding industry
- Textile industry
- Automotive industry
- All systems where relubrication is either not wanted, problematic or not possible at all.
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