HTD Standard Pilot Bore Timing Pulleys
Standard HTD timing pulleys are the basic type of pulleys for belts in the HTD profile. They are made of steel, gray cast iron or aluminum alloy as unbored or with a pilot bore. Their design is based on the ISO 5294 (DIN 7721) standard.
They are supplied as a semi-finished product and the inner hole needs to be adjusted to fix them on the shafts.
Pulleys Fields of Use
The HTD standard timing pulleys are designed for all types of HTD and RPP belts.
They are typically used in machine tools, small machinery, compressors, packaging, printing machines, in the food, paper and chemical industry and in many other machines.
Pulleys Material
Steel, cast iron or aluminum alloy.
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.
Pulleys Code Description
Example:
30-8M-20 (Type 6F, Steel)
Code Part | Description |
---|---|
30 |
Number of pulley teeth |
8M |
Teeth pitch in mm and type of pulleys for belts HTD |
20 |
Width of belt in mm |
6F |
Type of construction |
Steel |
Pulley material |
Documents for Download
Dimensions and Parameters of HTD Standard Pilot Bore Timing Pulleys
TYMA CZ Data Sheets
Czech and English (PDF 1.50 MB)