120 XH 400 (Type 6A, Cast Iron)
Timing Belt Pulley
V-pulleys and Poly-V pulleys number of grooves, timing pulleys and sprockets number of teeth.
Designed for further machining to the final dimension. The pre-drilled hole is therefore not machined to final tolerance for direct use. The size of the pre-drilled hole may vary according to the production batch.
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 GG.
120 XH 400 (Type 6A, Cast Iron) is the basic timing pulley for inch belts with XH trapeziodal profile. It is made of gray cast iron with a pilot bore. Designed according to ISO 5294.
The pulleys are supplied as a semi-finished product and the internal hole must be modified before mounting the pulleys on the shafts.
Pulley Fields of Use
The XH standard timing pulleys are designed for all types of XH belts with pitch 22.25 mm.
They are typically used in older machines with lower and medium performance, for example in packaging machines, in the ceramic, textile, food and tobacco industry and in many other machines.
In new applications, they are often replaced by HTD, STD or CTD profiles.
Grey cast iron.
Other materials to order.
|Surface roughness||ISO 254|
|Balance quality grade||VDI 2060, ISO 1940|
Cast iron pulleys at v < 30 m/s must be balanced.
Documents for Download
TYMA CZ Data Sheets
Czech and English (PDF 116.82 kB)
TYMA CZ Catalogue
Czech and English (PDF 3.64 MB)