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MOTOREX Magazine 2009 87 EN

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MOTOREX_Magazine_2009_87_en

E x p o r t Photos:

E x p o r t Photos: Rexoli P r a c t i c e Moto Blitz Barcelona, left to right: Sergio and Miguel Escobosa (shop owners) with Pere Ponsa (sales rep Rexoli Motor) Motorcycling is almost as popular in Spain as corridas (bullfights). But there is also a competition for market share, in which Juan Cano and his team are making steady gains with the MOTOREX MOTO LINE. Giant marine diesel engines transmit drive their power to the ship’s propellers via propeller shafts. Today’s oil-lubricated systems have to meet stringent lubrication and environmental requirements. Rexoli Motor SL: Olé MOTOREX! Stern tube oil for propeller shafts 16 Prompt deliveries are just one element in Rexoli’s outstanding service. The company maintains a well-stocked warehouse. Juan Cano threw himself into his passion for motor sports as a young man – with impressive success! Juan Cano (at left) first entered the two-wheel market in 1974 as a racer on a Bultaco 250 cc – Spanish-made, of course! The Spaniard has never lost his fascination with motorcycles. Besides Bultacos, he has also ridden Hondas, Kawasakis, Suzukis, Yamahas and Triumphs. He was runner-up in various classes in the Spanish championships no less than four times! Brake technology keeps things moving forward Galfer, a well-known global supplier of brake components, entered the Spanish market in 2000. Juan Cano was a distributor for Grupo Galfer at the time. In 2003 Galfer, having decided to focus more on its core business, offered Juan Cano and Rexoli Motor SL a welcome opportunity to start an independent business as importer and distributor of MOTOREX MOTO LINE products in Spain. Steadily expanding market presence With enormous dedication and ambitious goals, Rexoli Motor SL has continued its drive for market share during the past year and significantly expanded sales despite the effects of the economical difficulties crisis in Spain. The team is currently made up of ten people: owner Juan Cano, an office staff member, a warehouse worker, a bookkeeper, one field salesperson for Barcelona and one field salesperson for Madrid. Four more agents are responsible the rest of Spain. Juan Cano’s son Cristian is just completing his business degree and will soon be taking an active role in the business. A key foothold in racing “El Jefe” still has a strong presence in motor sports, which not only underlines the quality of the product but also helps boost brand awareness. So MOTOREX can depend on valuable relationships in Spain with KTM, Husaberg, Bimota, and since January 1, 2009 with Triumph Spain. For more information on Rexoli Motor, please visit www.motorex.es The steel juggernauts of the oceans transport goods and passengers from one continent to another with never a pause. At the stern, several meters below the water’s surface, each ship is propelled by one or more screw propellers. The motive power, often amounting to several thousand kilowatts, is transmitted by propeller shafts running through the stern tube, a hollow assembly that forms a direct connection between the sea and the engine room. High-quality sealing systems needed A sealing system for oil-lubricated propeller shaft bearings keeps seawater out of the stern tube. Conversely, the seal also keeps lubricant from leaking into the water or inward into the engine room. These seals are usually composed of several shaft seal rings installed in series. Their main function is to hold back the oil at both ends of the shaft. If these sealing systems are worn or degraded by saltwater after lengthy service, stern tube oil – the oil used to lubricate the propeller shaft and its bearings – can leak out. During operation, positive pressure builds up inside the stern tube, where the drive shaft passes through and the bearings are located. This pressure is needed to keep water out even at high pressure and if the shaft shifts a few millimeters axially or radially. Lubricant film fills the gap The effectiveness of the stern tube seal ultimately depends on the sealing system used. Between the seal ring and the shaft, stern tube oil builds up a thin, highly stable lubricant film. This distance is sometimes called the seal or lubrication gap. At the same time, the high pressure load is a challenge for all transmission oil properties. Modern stern tube oils, as they are also produced by MOTOREX, are based on a fully synthetic ester, giving them good biodegradability characteristics. If oil leaks into the seawater through a flaw in the sealing system, it is rapidly and completely broken down by natural microorganisms. This process is supported by the fact that the oil floats on the surface of the water and is thus exposed to air and light. A lubricant solution to accompany ship and environment on the great voyage into the future. Bearings must be packed precisely to ensure low vibration. These bearings are usually lubricated with oil. Water Ship’s hull Screw Propeller shaft Stern tube Bearings Stern tube oil Lubricant film Sealing system Compressed air system 17

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