Search Eshop Category Tree
česky CS | english EN
belts and
transmission systems
Shopping basket is empty

CONTI VX VARISPEED SUPREME Variable Speed Reinforced V-Belts

CONTI VX VARISPEED SUPREME (formerly CONTI-V VARISPEED POWER) variable speed belts are special wide V-belts for drives with continuous speed control.

Belts are made of a highly resistant rubber compound with high transverse stiffness for permanent and reliable transmission of high powers and revolutions They have aramid tensile fibers, which have the highest strength and minimal elongation. Very often they also have a special back construction, fabric on the teeth and other special design solutions.

AntistaticLow electrical conductivity – for compliance with requirements to ISO 1813.

BECKER asymmetrical variable speed pulley in use

If you submit the form, we will use your personal data (name, surname, email) to reply to your inquiry or question. All important information can be found in the Privacy Policy.

Belts Construction


  1. Fibre-reinforced synthetic rubber bottom section
  2. Embedding compound
  3. Aramid tension member
  4. Cotton cover fabric

Belts Fields of Use

CONTI VX VARISPEED SUPREME variator belts are designed for special applications in continuously variable transmissions. Aramid tensile fibres ensure minimum elongation even at the highest performance.

They are most commonly used in agricultural machines and harvesters, but can also be found in other machines.

Belts Characteristics

  • High power transmission, smooth quiet operation, long service life
  • Resistance to oil and other chemicals
  • Temperature range from −30 °C to +90 °C
  • Antistatic properties according to ISO 1813

Basic Parameters for Determining the Variable Speed Belt

Parameter Range
Upper rib width 16–100 mm
Belt height 8–25 mm
Belt lenght 600–5000 mm
Flank angle 20–42°, intervals of 2°

Belts Code Description


Code Part Description
W 52×16


1525 Li

Inside length in mm


Type of belt (formerly CONTI-V VARISPEED POWER)


Due to the diverse use of belts in different areas, there are several production standards:

  • ISO 1604, DIN 7719/1, RMA/MPTA IP-25 especially for industrial applications
  • ISO 3410, ASAE S211.4 especially for agricultural purposes

Belts Certification


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.

more information

Documents for Download

Dimensions and Parameters of CONTI-V VARISPEED V-Belts - Preview

Dimensions and Parameters of CONTI-V VARISPEED V-Belts

TYMA CZ Data Sheets

Czech and English (PDF 207.59 kB)

Drive Belts - Preview

Drive Belts

TYMA CZ Catalogue

Czech and English (PDF 4.54 MB)

Rubber Products Optional Services Price List - Preview

Rubber Products Optional Services Price List

TYMA CZ Product Overview

Czech and English (PDF 500.38 kB)

Question about the Belts Category

Do not hesitate to contact us with any questions about products in this category.

Ask Our Specialists

If you submit the form, we will use your personal data (name, surname, email) to reply to your inquiry or question. All important information can be found in the Privacy Policy.

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.

more information about manufacturer