4-8V 2950 / 4-25J 7500 CONTI-V MULTIBELT
Banded 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.
Outside length of the belt. It is commonly denoted as La or La.
The number of ribs corresponds to the number of grooves on the pulley.
In the TYMA Product Catalogues you can find this material also described with the abbreviation NR/SBR.
Belt Description
4-8V 2950 / 4-25J 7500 CONTI-V MULTIBELT is a banded V-belt created by joining individual V-belts into one wide strip. The belt profile and transmitted power remain the same as the individual belts. It is wrapped according to the US RMA/MPTA standard.
The banded V-belts are used to eliminate vibrations in the individual belts, on drives with significant impacts as well as highly irregular loads and on drives with large center distances.
On request, the banded V-belts can be made with reinforced polyester or kevlar tension member.
Belt Construction
- Fabric jacket
- Natural rubber bottom section
- Polyester tension member
- Natural rubber backing
Belt Fields of Use
The CONTI-V MULTIBELT profile 8V/25J banded V-belts are used in heavy-duty machines in all industries, especially in agricultural machinery, machine tools, crushers, fans, in the paper industry, cement plants, power plants, mines and in other cases where large irregular forces must be transmitted over long span lengths.
Belt Characteristics
- Temperature range from −40 °C to +80 °C
- Enhanced running smoothness
- Electrically conductive in accordance with ISO 1813
- Conditionally resistant to oil
- Suitable for tropical climates
- Dust-proof
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 MULTIBELT 3V/9J, 5V/15J a 8V/25J V-Belts
TYMA CZ Data Sheets
Czech and English (PDF 209.67 kB)
Rubber Products Optional Services Price List
TYMA CZ Product Overview
Czech and English (PDF 500.38 kB)
Related Products
Measuring Instruments
Our professional-quality special tools and measuring instruments will assist you in maintaining and fitting drive components.
Belt Manufacturer Profile
Continental is the world’s largest specialist for rubber and plastics technology in the non-tire rubber sector. A division of Continental AG, the company develops and produces functional parts, components and systems for the automotive and other important industries.
ContiTech importance on immediate proximity to customers. ContiTech is active in 26 countries with 75 production sites and more than 40 R&D facilities and sales organizations. The customers around the world stand to profit: Greater safety. Higher efficiency. Closer proximity.
TYMA CZ, s.r.o., is the official distributor of Continental ContiTech Power Transmission Group.
