Subscribe to RSS
Bearings Units
Miniature Bearings
Standard Bearings
Overmolded Bearings
Custom Bearings
England Germany Russia India Turkey SouthAfrica UnitedStates Netherlands Philippines Belgium Australia Brazil Spain China Korean

NTN Developed “Motorized Linear Module for Tracking System of Solar Heat/Solar Light Power Generation”

NTN Corporation (hereafter, NTN) has developed the “Motorized Linear Module for Tracking System of Solar Heat / Solar Light Power Generation*” with high precision positioning technology for use in solar heat and solar light power generation facilities.

Tower type solar heat power generation plants designed to use the sun’s energy effectively utilize a reflecting mirror to track the movement of the sun, with heat from the solar light collected at the central tower used to generate power. Devices used to track the sun are generally designed so that the angle of elevation moves linearly, with rotation and drive moving around the horizontal angle.

Until now, pneumatic and hydraulic cylinders had been used as the linear actuators of the drive mechanism for the angle of elevation due to their simple construction and high mass-production capabilities. Yet these designs required external compressors, special piping and other equipment connected to each cylinder, as well as significant power supplied to them. It was also difficult to completely eliminate air or oil leaks from the cylinders or piping, which subsequently required time and cost to conduct maintenance inspections and repairs.

The “Motorized Linear Module for Tracking System of Solar Heat / Solar Light Power Generation” developed by NTN uses a linear module type cylinder powered by an electric motor drive system. The use of a ball screw for the feed screw gives the module a high repeatability of the position and durability for extended use. Grooves have been machined into the track surface on the inner surface of the body that forms the part of straight guide, and a rolling bearing as the guide roller to ensure smooth linear guidance and a high rigidity.

Solar heat power generators are suited to larger areas of land with long hours of sunlight such as deserts. The developed product can be used under the tough environmental conditions found in desert areas, as it features a dust seal to prevent the entry of dust and other foreign matter, and comes with protection tubes to protect piping from UV rays and heat.

The developed product can also be used for solar light power generators, and installation of tracking systems mounted to solar panels are expected to increase the amount of power generated by 1.6-fold compared to fixed systems.

NTN has already supplied the developed product to manufacturers of solar heat power generation equipment for evaluation testing, and is focusing on sales activities in global markets.

* Motorized linear module: device that moves a cylinder linearly by extending/retracting it with an electric motor

[ Features ]

(1) High performance
? Repeatability of the position ±0.1 mm or less, high-rigidity with thrust of 3,000 N or more
(2) High weather resistance
? Dust protection and heat resistance for use in environments such as desert areas

[ Product photo ]

NTN solar tracking 1

Motorized Linear Module for Tracking System of Solar Heat Power Generation
e.g.) Body: length 935 mm, 75 mm square, stroke length: 500 mm

[ Applicable parts ]

NTN solar tracking 2

Image of tower type solar heat power generation plant

NTN solar tracking 3

Heliostat mirror for reflecting solar light


source: NTN

0 commentsback to post

Add your comment



Other articlesgo to homepage

세계 최대 정격하중 스피리컬 롤러 베어링

세계 최대 정격하중 스피리컬 롤러 베어링(0)

스피리컬 롤러 베어링은 레이디얼 하중을 지지하는 베어링산업의 워크호스다. 레이스웨이에 잘 들어맞게끔 두 가닥의 베럴 모양의 롤러로 구성돼 있으며, 이러한 완벽한 매치와 크기, 롤러의 개수 등이 스피리컬 롤러 베어링의 하중 능력을 높여준다. 스피리컬 롤러 베어링은 기본적으로 두 가지 타입이다. 대칭형 롤러 설계방식은 부동식 센터 가이드 플랜지를 사용하여 상대적으로 긴 롤러들이 사용될 수 있으며, 베어링의 레이디얼 하중

ZKL의 신 동력 “밀봉 스피리컬 롤러 베어링”

ZKL의 신 동력 “밀봉 스피리컬 롤러 베어링”(0)

ZKL은 최근 밀봉 스피리컬 롤러 베어링 개발에 성공했다. 올해 그 범위가 확장되며, 고객들은 ZLK의 제품 카탈로그에서 이 신상품을 만나 볼 수 있다. ZKL의 밀봉 스피리컬 롤러 베어링은 올해 5월 출시 예정이다. 밀봉 스피리컬 롤러 베어링’의 이점 이 신제품은 모든 엔지니어링 분야에 응용이 가능하다. 다양한 구조의 부품들의 결합체로써 틸팅과 높은 하중능력을 특징으로 하며, 실행능력이 정확하다. 또한,

Cater Manufacturing,  Silverthin의 100% 미국산 씬 베어링 판매

Cater Manufacturing, Silverthin의 100% 미국산 씬 베어링 판매(0)

여러 분야의 산업현장에서 발생하는 베어링 문제에 대한 해결책을 다년간 제시해온 Carter Manufacturing은 사용자 맞춤식 또는 고객의 엔지니어링 문제해결에 초점을 맞추고 있다. 특히 베어링 제조 전문과들과 견고한 파트너쉽을 구축해 온 가운데, Silverthin Precision Thin Section Bearings은 이들 파트너 중 하나다. 채굴에서부터 조립까지 모든 제조과정이 미국현지에서 이뤄지는 100% 미국산 제품을 생산하는 Silverthin Precision Thin Section Bearings은 이런

NSK Develops a Long-Life Sealed Spherical Roller Bearing with Improved Abrasion Toughness for Heavy Industry Applications

NSK Develops a Long-Life Sealed Spherical Roller Bearing with Improved Abrasion Toughness for Heavy Industry Applications(0)

Longer Life for Lower Maintenance Costs NSK Ltd. (NSK; Headquarters: Tokyo, Japan; President and CEO: Norio Otsuka) announced that it has developed a long-life sealed spherical roller bearing with improved abrasion toughness for application in heavy industries such as mining, iron and steel manufacturing and non-ferrous metals manufacturing. The improved life of this product provides

Trelleborg launched e-learning modules on sealing technology

Trelleborg launched e-learning modules on sealing technology(0)

Trelleborg Sealing Solutions is launch e-learning modules on sealing technology. Covering major sealing product areas, our aim through the e-learning modules is to answer questions most commonly asked by design engineers when facing sealing challenges. The know-how in the upcoming learning modules is not only targeted at design engineers at equipment manufacturers, but will also

read more

Contacts and information

Social networks

Most popular categories

Legal Notice

© 2012 BEARING NEWS All rights reserved.