These are available in two different sizes. The smaller size has a stud on one side while the larger one has no stud. Two numbers of these mounts are used as the rubber springs in each of the quickfoot CORIRUBBER - 503 mountings These can be loaded either in compression or in shear and withstand loads upto 1000kg in compression and upto 200 kg in shear.A time tested mount for isolating vibration from diesel generators, compressors, screens, blowers and other medium to heavy machines. These quickfoot mounts can absorb a combination of shear & compression loading. Installation can be made for most machines without bolting to the floor by using oil resistant friction pad supplied with the mount.