25 PJ-4 - Pilot Bored
Poly-V-Belt Pulley
Price without VAT: 11.17€
Price including VAT: 13.52€ with VAT
Catalogue price excluding VAT:
11.40€
At supplier, we usually ship within 3 weeks Usual time this product is ready for shipping. Actual availability may vary due to unforeseen circumstances in exceptional cases.
Pulley Parameters
Nominal diameter, datum diameter or working diameter of the pulley. It is commonly denoted as Dm or Dm, and sometimes also as Dw or Dw.
The number of grooves corresponds to the number of ribs on the belt.
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.
Pulley Description
25 PJ-4 - Pilot Bored is the basic type of poly-V-belt pulleys in PJ profile. It is made from gray cast iron. Its design is based on the ISO 9982 (DIN 7867).
Only smaller sizes are supplied as a semi-finished product and the bore must be modified before mounting the pulleys on the shafts.
Pulley Fields of Use
The PJ poly-V-belt pulleys are designed for all PJ poly-V-belts with groove pitch of 2.34 mm.
They are typically used in compact compressor drives, blowers, machine tools, pumps, in the paper, chemical and automotive industries, garden technology and in many other machines.
Pulley Material
Fine grey cast iron GG20-GG25.
Other materials to order.
| Parameter | Standard |
|---|---|
| Surface roughness | ISO 254 |
| Balance quality grade | VDI 2060, ISO 1940 |
Notice
The pulleys can be balanced dynamically in two planes on request.
Documents for Download
Dimensions and Parameters of PJ Poly-V-Belt Pulleys
TYMA CZ Data Sheets
Czech and English (PDF 181.35 kB)
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