Very compact flange houses with the cover bolted on. It is extremely sturdy, it is impact strenghtened and can be mounted in all angles. It is easy to clean with rounded corners and smooth surfaces. It is mounted with a spherical PE lifetime lubricated ball bearing with excentric locking collar, corrotect treated to prevent setting on the shaft, oil seal ring with a spring, ensuring that water can not penetrate the housing - even at direct hosing.