Adjustable Speed V-belts CONTI VARISPEED and ROFLEX-VARI
Adjustable speed V-belts CONTI VARISPEED® and ROFLEX-VARI are wide V-belts specially designed for use in drives with adjustable-speed transmissions and with Variomatik automatic transmissions. The belts meet strict requirements on dynamic load and lateral rigidness. They are of outstanding quality and long life span, as they are made of special polychloroprene mixture. On request, we can supply these belts with strengthened tensile filaments or with kevlar filaments.

Application:
Adjustable speed V-belts CONTI VARISPEED® and ROFLEX-VARI are used in drives with adjustable-speed transmissions.
Properties:
- high power transmission, smooth quiet operation, high durability
- resistance to oils and other chemicals
- operation temperatures from -30°C to +80°C
- antistatic properties in compliance with ISO181
Marking:
W52x16x1525Li, resp. ISO - W50x1600Lw
52x16 - cross-section; 1525Li - inner length in v mm; W50 - cross-section; 1600Lw - effective length in mm
Standard cross-sections:
13x6, W16, 17x6, W20 21x6, 22x8, W25 26x8, 28x8, 30x10, 32x10 W31,5 33x10, 37x10, W40, 42x12, 47x12, W50, 52x16, 55x16, W63 65x20, 70x18, 83x23
Significant parameters of adjustable speed V-belts are:
a) top width (range 16 - 100mm)
b) cross-section height (range 8 - 25mm)
c) belt length (range 600 - 5000mm)
d) cross-section angle (range from 20° to 42° in 2° intervals)
Manufacture:
Due to the wide range of applications with adjustable speed V-belts, they are manufactured to several standards:
- ISO 1604, DIN 7719/1, RMA/MPTA IP-25 related to industrial adjustable speed V-belts
- ISO 3410, ASAE S211.4 related to agricultural adjustable speed V-belts
Files for downloading:
- A catalogue of adjustable speed V-belts Varispeed (pdf, 126 kB)
- A catalogue of adjustable speed V-belts Roflex-Vari (pdf, 112 kB)
- A complete catalogue of belts available at TYMA (pdf, 6 786kB)
