Comparison of Grease and Solid Lubrication of Rolling Bearings Under Small-Stroke Reciprocationfor Space Applications

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F20%3APU135860" target="_blank" >RIV/00216305:26210/20:PU135860 - isvavai.cz</a>

Result on the web

<a href="http://www.tribology.rs/journals/2020/2020-1/2020-1-14.html" target="_blank" >http://www.tribology.rs/journals/2020/2020-1/2020-1-14.html</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.24874/ti.2020.42.01.14" target="_blank" >10.24874/ti.2020.42.01.14</a>

Result language

angličtina

Original language name

Comparison of Grease and Solid Lubrication of Rolling Bearings Under Small-Stroke Reciprocationfor Space Applications

Original language description

Rotary actuator is a device responsible for the precise rotation of sensitive instruments such as antennas. Requirements for its precision and stiffness are extremely high. Actuators used in the space environment have to work for long period, under extreme condition and without possibility of repair or replacement. One of the main components responsible for its proper function are bearings. They precisely support shafts, and usually operate in a very small angular range with many repetitions. Selection of the proper bearing design and also the lubrication of the bearing can have significant effect on the performance and life of the entire satellite. Purpose of this study was to select and test suitable lubricant to support operation of such bearing. Sets of bearings lubricated by Rheolube 2000 and MoS2 PVD film were tested in thermal vacuum chamber under small angle oscillatory motion with the same start and end position for every cycle. Torque and bearing noise was evaluated during the tests and bearings were inspected. Rheolube 2000 was selected as the best lubricant for the described conditions because of the acceptable torque, lower bearing noise and easier manipulation during assembly and testing. However, both options proved to be applicable.

Czech name

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Czech description

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Type

J_SC - Article in a specialist periodical, which is included in the SCOPUS database

CEP classification

—

OECD FORD branch

20304 - Aerospace engineering

Project

<a href="/en/project/TH02010205" target="_blank" >TH02010205: Rotary Actuator for Space Applications</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Tribology in Industry

ISSN

0354-8996

e-ISSN

—

Volume of the periodical

42

Issue of the periodical within the volume

1

Country of publishing house

RS - THE REPUBLIC OF SERBIA

Number of pages

13

Pages from-to

146-158

UT code for WoS article

—

EID of the result in the Scopus database

2-s2.0-85081608255