One-side bearings BB4 pumps exported for high head of 310m.
Upto our favorable experience limits with customer's approval, these one-side bearings BB4 pumps were applied exceeding below Table 10 limits.
In API610:
Unless otherwise specified or approved by the purchaser, the bearing type and arrangement shall be selected as one of below 3 arrangements and in accordance with the limitations in Table 10.
a) rolling-element radial and thrust;
b) hydrodynamic radial and rolling-element thrust;
c) hydrodynamic radial and thrust.
