"ECONOMICAL" range without affceting quality and performance.
The grease reserve is through seals placed in housing
built into the flanged sleeves.
These couplings with METRIC dimensions and bolts are
INTERCHANGEABLE BY HALF COUPLINGS WITH THOSE TO AGMA 561-01 STANDARD
as applied to couplings with exposed bolts.

However, the dimensions must be checked according to our method.