2018-01-29







In the framework of the advance project of the Perspective Research Foundation, the Krylov State Research Center (St. Petersburg) carried out comparative tests of two reducers. Test reducer 5Ц2-125-12,5 with involute gearing produced by JSC "ZAREM". Gears with a hardness of 60 HRC are made by grinding 5kl. accuracy. The tested reducer is made in a similar housing of the test reducer 5Ц-125-12,5 with EC-gearing. EC-gears with a hardness of 60 HRC are made by blade cutting with 8 cl. accuracy.

As a result of the tests revealed:
1. The efficiency in the EC-reducer is 2% higher. The average value in the entire load range.
2. The limiting moment for scrapping the EC-reducer is more by 25%.

Gearbox with EC gears


Reducer with involute gears


Comparison of gears of EC gearbox and involute





SEW-EURODRIVE Gmb&CoKG
STAHL CraneSystem GmbH
Digital Smart System LLC, California, USA
SETC Ltd.
SME Tomsk Electronic Company
Research and Production Company Micran
RussNeft corp.
Tomskgazprom corp.
Electroagregat corp.
Transputmash Trade Company, JSC
© Technology Market, 2018
Site created by Sitis studio