Bonfiglioli KRG/KCG/KSD Hydraulic Coupling Selection and Integration Guide

Load inertia: 82000 kgm ² (converted to output shaft)

Environmental temperature: 30 ° C

Start frequency: 3 times per hour

Selection steps:

Based on P=55kW and n=1475 min ⁻¹, the preliminary selection chart shows that it is Size 15.

Considering the high inertia load, it is recommended to choose a dual delay chamber (CC) to limit the starting torque to below 150%.

Calculate the load inertia converted to the motor shaft

JLOAD=JRED+JLOAD_ref

And calculate the startup time based on this tacc

Calculate the startup temperature rise Δ Tacc and steady-state temperature rise Δ Tuts, and confirm that Tuts is less than the safety limit of 140 ° C.

Calculate Z-MAX and confirm that the actual startup frequency of 3 times per hour is within the allowable range.

If Z-MAX is insufficient, it needs to be increased to Size 17 or external cooling measures need to be added.

Final selection: KRG 15-CC-D_ (with disc brake), input shaft with guide hole (FP), output shaft with hole according to reducer shaft diameter, horizontal installation (OR), optional SP switching pin protection.