Seat system with shock absorber

Profile

What was needed: Plain bearing for a seat system with shock absorber

Requirements: Corrosion resistance, forces up to 5 g, maintenance-free use

Success for the customer: maintenance-free and durable plain bearings without reworking, which can come into contact with salt water without any problems.

Problem:

The plain bearings previously used often had to be reworked in order to meet the required tolerances. Assembly time and costs increased accordingly.

Solution:

Together with igus®, a customised solution was found that did not require any reworking. Assembly times and costs were reduced, resulting in lower final prices for the end customer.

High seating comfort despite swells

The company Professional Components has developed a mechanism for seats in boats that protects the user from severe spinal damage and extreme fatigue. At high speeds, waves cause shocks that are transmitted directly to the boat and the people in it.

The system uses a shock absorber in conjunction with igus® plain bearings made of iglidur® J4 material. Shocks are thus optimally cushioned and travelling comfort is increased. This makes it possible to travel at sea even under extreme conditions, even with chronic back pain.

Faster installation times and no reworking

Technical drawing of the IntraBot Lift 550 with visible bearings

Previously, plain bearings from another manufacturer were used, which were milled from bar stock. However, it was difficult to maintain the required tolerances. Some of the plain bearings had to be re-milled manually in order to guarantee the correct fit. In collaboration with igus®, a customised solution was found for the seating system. The company Professional Components now uses injection moulding bearings made of iglidur® J4 material. This is particularly cost-effective and ideal for high volume. As the bearings no longer have to be re-milled and their installation has been simplified, the final costs for customers have been reduced. Professional Components is also pleased with the increased safety and performance of its product.

The seating system comes into contact with seawater, so corrosion resistance and total moisture absorption are crucial for the selection of components. The system can be subjected to shocks of up to 5g, so optimising load distribution across the bearings is important. The reduction of rotational resistance is also crucial to enable sufficient energy transfer. The system must be maintenance-free, as most users do not have tools on board to carry out repairs at sea. It was also crucial for Professional Components that the plain bearings are easy to install during the manufacturing process in order to reduce assembly costs.

About the product used:

iglidur J4 plain bearing in the igus online shop

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