The type, or so-called series of the reduction gear, significantly affects the efficiency.
Series H – hollowshaft reduction gears sealed on the fast motion input shaft show much lower efficiency than comparable size of series G , T, and E. It´s because of high friction generated by rotational sealing of the shaft on large diameter, and subsequent loss reflected in overall reduction gear efficiency. Thus, method of sealing and number of sealing units has major impact on overall transmission efficiency.
As resulted from the above mentioned statements, efficiency is rather complex phenomenon that cannot be reduced to a single number. Every application is specific and all the above stated factors influencing the resulting efficiency should be taken into account, especially in case of mobile equipment or thermally critical applications, respectively.
In case of interest, SPINEA® will be glad to help you improve your application in the terms of its efficiency, be it in the form of proper adjustment of Lost Motion, recommendation of adequate sealing type or selection of suitable lubricant type for all types of operating conditions and applications.