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• What was needed: drylin® E ZLW toothed belt axes, drylin® W linear rails and guides, iglidur® X plain bearing
• Requirements: Durable components that can withstand salt water, high water pressure, contamination and more are required for the purpose of inspections, cleaning and repairs on ships and offshore platforms.
• Industry: Robots, offshore
• Success for the customer: Our lubrication-free bearing, linear and drive technology solutions work perfectly together and offer a light, robust solution that also works in spray water and underwater.

Problem

The robots of the company Remotion work both below and above the waterline using patented magnetic technology. They carry out difficult and dangerous operations, e.g. inspections, offshore hull cleaning or the repair of surface structures underwater or in the spray zone. The components have to withstand extremely harsh conditions:

• Water pressure up to 10 bar
• Long-term immersion in corrosive salt water
• Significant hydrodynamic forces in the spray zone
• Contamination by abrasive particles
• Limited maintenance options

To address these conditions, the company looked for products that had low weight and low total moisture absorption. In addition, the products should be extremely wear-resistant and guarantee strong performance at low speeds.

Solution

With the help of the igus® components, Remotion was able to solve the numerous problems. All components, e.g. the toothed belt axis, the linear rail or the bearing parts impressed with their low maintenance requirements and low weight.

The ZLW drives are a compact solution with lightweight and low maintenance requirements for use in wet and dry conditions. They are used as a tool platform and actuator.

The drylin® W products are also used in the company's tool constructions. They are compact, lightweight, easy to maintain and are also ideal for the underwater environment.

igidur X plain bearings are used in many pivot points and rotating parts. These have saved a lot of volume and weight in underwater robots, while the maintenance requirements are marginal compared to rolling bearing solutions. They also work very well in the underwater environment.

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