26 XH 400 (Type 5F) TB 3020 (Cast Iron)
Timing Belt Pulley
Pulley Parameters
Pitch diameter of the pulley. It is commonly denoted as Dp or Dp.
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.
Pulley Description
26 XH 400 (Type 5F) TB 3020 (Cast Iron) is a basic type of pulley for belts with trapeziodal XH profile. It is made of grey cast iron. Its design is based on the ISO 5294 standard.
The pulleys are mounted on shafts using the Taper Lock bushes (TB 3020), thanks to which there is not only a fixing on the shaft with a keyway, but also an axial locking against displacement.
Pulley Fields of Use
The XH Taper 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 HTDHigh Torque Drive
Because of its tooth height and semi-circular tooth geometry, the HTD profile is especially good at avoiding jump-over of the teeth in operation. The HTD profile is extremely suitable for transmitting high torques., STDSuper Torque Drive
The involute shape of the STD profile allows optimal tooth engagement with the pulley. As a result, it provides precise and quiet operation even at high belt speeds. or CTDConti Torque Drive
The CTD profile is a symbiosis of the HTD and STD profiles, combining the benefits of both tooth geometries. The tooth height and width correspond to that of the HTD profile for transmitting extremely high torques and preventing jump-over at the same time, while the involute-shaped flank ensures very smooth running. profiles.
Pulley Material
Grey cast iron.
Other materials to order.
| Parameter | Standard |
|---|---|
| Surface roughness | ISO 254 |
| Balance quality grade | VDI 2060, ISO 1940 |
Caution
Cast iron pulleys at v < 30 m/s must be balanced.
Documents for Download
Related Products
Taper Lock Bushes
Taper Lock bushes with finished metric or inch bore and keyway to fixing components to a mating shaft without using any special tools.
XH Inch Sizes Timing Belts
XH Inch Sizes Standard Pilot Bore Timing Pulleys
Measuring Instruments
Our professional-quality special tools and measuring instruments will assist you in maintaining and fitting drive components.