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Article
Publication date: 11 April 2016

Ming Qiu, Yanwei Miao, Yingchun Li, Long Chen, Rensong Hu and Jianjun Lu

The fabric self-lubricating liners are the key factors impacting the performances of self-lubricating spherical plain bearings. The purpose of this paper is to improve the…

Abstract

Purpose

The fabric self-lubricating liners are the key factors impacting the performances of self-lubricating spherical plain bearings. The purpose of this paper is to improve the friction and wear properties of self-lubricating radial spherical plain bearings by modification of the liners.

Design/methodology/approach

The liners of hybrid woven PTFE/Kevlar fabrics were treated respectively by the LaCl3 and CeO2 solutions. The tribological properties of self-lubricating spherical plain bearings with treated or untreated liners under continuous swaying conditions were investigated with the bearing tester at the swaying frequency of 2.5 Hz and the swaying angle of ±10°. The film formation and wear mechanisms were analyzed based on the observation of worn surfaces with a scanning electron microscope (SEM) and an energy dispersive spectrometer (EDS).

Findings

Results show that the tribological properties of the bearings treated by the LaCl3 or CeO2 solution were improved compared with those of the untreated bearings. In particular, the wear resistance of bearings treated by the CeO2 solution was remarkably improved under higher swaying cycles, but the anti-friction properties and cooling effects of bearings treated by the LaCl3 solution were better under lower swaying cycles. Through SEM analysis, the reasons were analyzed. The bearings with treated liners only produced slight adhesive and abrasive wear, but the bearings with untreated liners produced more serious adhesive and abrasive wear under higher swaying cycles.

Originality/value

The paper proposed a new pretreatment process for the self-lubricating liners. The investigation on the friction and wear behaviors of the bearings is beneficial for prolonging the service lives of the radial spherical plain bearings.

Details

Industrial Lubrication and Tribology, vol. 68 no. 3
Type: Research Article
ISSN: 0036-8792

Keywords

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Article
Publication date: 13 February 2009

Yong Cao, Li Zhao and Rensong Chen

The purpose of this paper is to understand different institutional mechanisms for promoting effective innovation diffusion and maximizing spillovers from fruitfulness of…

Abstract

Purpose

The purpose of this paper is to understand different institutional mechanisms for promoting effective innovation diffusion and maximizing spillovers from fruitfulness of university‐industry linkages.

Design/methodology/approach

The approach involved the content analysis of university documents and in‐depth interviews with university personnel. The paper investigated the types of changes which had been instituted by selected universities in regards to the management of invention disclosure and patent licensing procedures, policies for new business startups by faculty and graduates. The paper then studies how university incentive structures have been reshaped to encourage and facilitate engagement with industry.

Findings

The types of changes have been instituted by select universities enhance research commercialization capacity in regards to the management of invention disclosure and patent licensing, policies for new business startups by faculty and graduates, and provision of seed capital, training and incubator facilities, especially the relationship between technology transfer offices and university administration, as well as faculty; how university incentive structure has been reshaped to encourage and facilitate engagement with industry; how gross royalties and/or net royalty income are distributed between university and faculty.

Originality/value

This paper describes the important role of institutional underpinnings for building commercial linkages. It also explores what university policies and institutions shape the nature and fruitfulness of innovation diffusion in China.

Details

Journal of Technology Management in China, vol. 4 no. 1
Type: Research Article
ISSN: 1746-8779

Keywords

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