W 28x8x650 Li
Variable Speed V-Belt
Low electrical conductivity – for compliance with requirements to ISO 1813.
Belt Parameters
Nominal length, datum length or working length of the belt. It is commonly denoted as Ld or Ld, and sometimes also as Lw or Lw.
Inside length of the belt. It is commonly denoted as Li or Li.
This standardized product may come from different manufacturers. We will provide you with the currently supplied brand upon request.
In the TYMA Product Catalogues you can find this material also described with the abbreviation NR/SBR.
Belt Description
W 28x8x650 Li is a special variator wide V-belt for drives with continuous speed control.
The belts are made from a highly durable rubber compound with high transverse stiffness for permanent and reliable transmission of high power and revolutions.
Belt Construction
- Fibre-reinforced synthetic rubber bottom section
- Embedding compound
- Polyester tension member
- Cotton cover fabric
Belt Fields of Use
The CONTI VX VARISPEED ADVANCE variable speed belts are used in variators and variable speed transmissions in industrial applications such as machine tools, saws, drills, in the textile industry, ironworks and other areas.
Belt Characteristics
- High power transmission, smooth quiet operation, long service life
- Resistance to oil and other chemicals
- Temperature range from −30 °C to +80 °C
- Antistatic properties according to ISO 1813
Belt Certification
- Factory Electrical Conductivity Certificate of Belts According to ISO 1813 and ISO 9563 (pdf, 104.90 kB)
- ContiTech Explanation of ATEX Certification (pdf, 11.96 kB)
Notice
General factory certificates are not sufficient for belts used in potentially explosive atmospheres.
If a test report according to ISO 1813 and ISO 9563 is required for the application, it is necessary to inform us of the request for delivery of belts including the certificate when ordering them (when ordering belts via Eshop, please write this request in the "Note" field before by sending the order). The certificate is issued by ContiTech after the test in the production plant.
Documents for Download
Dimensions and Parameters of CONTI-V VARISPEED V-Belts
TYMA CZ Data Sheets
Czech and English (PDF 207.59 kB)
Rubber Products Optional Services Price List
TYMA CZ Product Overview
Czech and English (PDF 500.38 kB)
Related Products
Variable Speed Pulleys
Variators and variable speed pulleys for transmissions with the possibility of changing the speed with a variator or V-belt.
Measuring Instruments
Our professional-quality special tools and measuring instruments will assist you in maintaining and fitting drive components.
