[BC] 3 phase to single phase conversion

[PeterH]

On Feb 11, 2009, at 6:05 AM, Gary Glaenzer wrote:

> if it has INTEGRAL seals, there is no reason for a fitting

Modern motors have the identity of the bearing types (usually a  
different one for each end) stamped on the motor's nameplate date.

The bearing type indicates the type of sealing method: unshielded,  
shielded or sealed.

If there's a "ZZ" in the bearing type, it is unlikely that the Zerks  
would work, even if they were fitted.