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TYMA CZ
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PM Poly-V-Belt Pulleys

PM Poly-V-belt pulleys are manufactured according to drawings or customer requirements.

Their design is based on ISO 9982 and DIN 7867 standards.

The pulleys are usually mounted on shafts using the Taper bushes, keyways or in another way.

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Pulleys Fields of Use

The PM poly-V-belt pulleys are designed for all PM poly-V-belts with groove pitch of 9.4 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.

Pulleys 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.

Pulley Code Description

Example:
200 PM-8 2012

Code Part Description
200

Nominal diameter of pulley in mm

PM

Profile

8

Number of grooves

2012

Type of Taper bush

Poly-V Groove Profile

Profile E

sum

Δemax.

αo F

ra

min

ri

max

Dm

min

PM 9,40 ± 0,08 ± 0,30 40 ± 0,5 6,4 0,75 0,75 180

Crown width \(B\): \[B = {E^{(n-1)} + 2 \cdot F}\ {[mm]}\] where \(n\) is the number of grooves.

Other technical data for particular profiles are to be found in the technical documentation.

Documents for Download

Pulleys and Clamping Bushes - Preview

Pulleys and Clamping Bushes

TYMA CZ Catalogue

Czech and English (PDF 3.64 MB)