HTD Standard Pilot Bore Timing Pulleys
HTD Standard timing pulleys are the basic type of HTD pulleys.
They are made of steel or gray cast iron and they are designed as unbored or with a pilot bore.
The pulleys are supplied as a semi-finished product and the bore must be modified before mounting the pulleys 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.
Pulley Basic Profile
- Pulley 3M for belts HTD 3M (or 3RPP) with grooves pitch 3.00 mm
- Pulley 5M for belts HTD 5M (or 5RPP) with grooves pitch 5.00 mm
- Pulley 8M for belts HTD 8M (or 8RPP) with grooves pitch 8.00 mm
- Pulley 14M for belts HTD 14M (or 14RPP) with grooves pitch 14.00 mm
Pulley 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)

