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Liên hệ
igus® Vietnam Company Limited

Unit 4, 7th Floor, Standard Factory B, Tan Thuan Export Processing Zone, Tan Thuan Street

District 7, HCM City, Vietnam

+84 28 3636 4189

Plastic bearings in an inspection device for offshore drilling riser

Resistant in harsh environment


  • What was needed: Miniature guide, plastic bearings and adjustable tie rods
  • Requirements: Light, low-maintenance, reliably robust and user-friendly 
  • Industry: Oil production
  • Success for the customer: Lubrication-free guide carriages with low wear and low coefficient of friction.

When drilling for oil and gas in the offshore sector, so-called "drill risers" connect the drilling platform with the seabed. Many individual risers are flanged together as in an umbilical cord. They transport the media during the drilling process. They also protect and guide the drill pipes that run inside the riser main pipe.
Oil platform - structure of the inspection device Inspection device from Tuboscope Vetco Germany


Since the riser is exposed to aggressive media and high mechanical loads, safety and environmental protection aspects require regular inspection. A new device provides reliable results here and replaces the conventional hand-held testing devices. Plain bearings made of high-performance plastic play an amazing role in this high-tech application. The inspection device from Tuboscope Vetco Deutschland GmbH scans the entire inner surface of the extremely stressed riser main pipe semi-automatically in just one operation. Driven centring units move, guide and centre the device in the pipe. Highly sensitive special sensors detect the condition of the pipe without contact. Downstream electronics and computers evaluate their signals and document the inspection results. The device must be lightweight, low-maintenance and reliable. It should be robust, user-friendly and resistant to corrosion. Furthermore, it must not be affected by impurities such as corrosion products, residual liquid, sand, grease or oil.  These requirements also apply to the used machine elements, for example the plastic plain bearings.


To ensure the required quality, igus® provided free bearing samples for the development and construction of the very first hand model. Already the prototype fulfilled all requirements, whereby the products from igus® are located in the centring and sensor system of the test device.
Low-friction and effective
The pins of the joint connections are mounted in plastic plain bearings "GFM-0810-05". These transmit the high radial centring forces reliably with low friction and without stick-slip, and minimise friction in the arm system thanks to their integrated thrust collar. This makes the entire centring system work very effectively. The representatives of the iglidur® G product family are generally recommended for extremely high loads, low to medium surface speeds and when the bearing should be insensitive to dirt.
Highly sensitive individual sensors
The sensor system consists of many highly sensitive individual sensors that are evenly distributed around the circumference. Adjusted to a certain distance from the pipe wall, they operate completely contact-free. Their measuring accuracy is in the tenth of a millimetre range. A central synchronous adjustment enables the exact, even and simultaneous positioning of the sensors during system calibration and when changing the nominal width. Guide systems and tie rods form the core of the system. Each individual sensor is mounted on its own miniature guide system of type "NK-02-27". In the extremely flat drylin® N guides in various widths, the guide carriages run without grease or oil in an anodised aluminium C-profile. Particularly impressive are the lightweight design and the low wear with low coefficient of friction. Furthermore high speeds and accelerations are possible Adjustable tie rods couple the sliding carriages to the central adjustment. They consist of rod end bearings with right-hand or left-hand threads, "EBRM-05" and "EBLM-05". Clevis joints "GERMK-05" are used on both sides as counter bearings. The rod ends and clevis joints are adjusted to run particularly smoothly with very little clearance. This enables all adjustment work on the sensor system to be carried out smoothly and sensitively; the movements are low-friction and stick-slip-free.

More pictures of the application example

Design of the inspection device Structure of the inspection device from Tuboscope Vetco Germany: 1) Frame, 2) Front centring, 3) Rear centring, 4) Sensor system, 5) Electronics
Sensor system of the inspection device Sensor system of the inspection device: 1) Guide system, 2) Tie rod with counter bearing

Tư vấn

Tôi sẽ rất vui được trả lời trực tiếp các câu hỏi của bạn

Aw Kai Hua

Product Manager iglidur® bearings ASEAN

Viết e-mail

Vận chuyển và tư vấn

Người liên hệ:

Thứ Hai đến Thứ Sáu từ 8:30 sáng đến 17:30


Thứ Hai đến Thứ Sáu từ 8:30 sáng đến 17:30

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igus® GmbH xin nhấn mạnh rằng mình không bán bất cứ sản phẩm nào của các công ty Allen Bradley, B&R, Baumüller, Beckhoff, Lahr, Control Techniques, Danaher Motion, ELAU, FAGOR, FANUC, Festo, Heidenhain, Jetter, Lenze, LinMot, LTi DRiVES, Mitsubishi, NUM, Parker, Bosch Rexroth, SEW, Siemens, Stöber và mọi nhà chế tạo về chuyển động khác nêu trong trang web này. Các sản phẩm do igus® cung cấp là sản phẩm của igus® GmbH


Đơn vị 4, Tầng 7, Xưởng tiêu chuẩn B, Đường Tân Thuận, Khu Chế Xuất Tân Thuận, Phường Tân Thuận Đông, Quận 7, Thành phố Hồ Chí Minh, Việt Nam

Số điện thoại: +84 28 3636 4189

Giấy chứng nhận đăng ký doanh nghiệp số: 0314214531

Ngày đăng ký lần đầu: 20-01-2017



Unit 4, 7th Floor, Standard Factory B, Tan Thuan Street, Tan Thuan Export Processing Zone, Tan Thuan Dong Ward, District 7, Ho Chi Minh City, Vietnam

Phone: +84 28 3636 4189

Tax code: 0314214531

Date of issuance: January 20, 2017