igubal® Spherical Heavy Duty Clip Bearings. igubal® Spherical Heavy Duty Clip Bearings are high-performance, durable, self-aligning, maintenance-free polymer bearings - insensitive to dirt - suitable for use within a wide variety of applications where corrosion-resistant, light-weight bearings may be installed. igubal® Spherical Heavy Duty Bearings are able to accommodate applications where very high radial and axial loads exist. The Spherical Bearings are able to operate in dry conditions, within liquids and chemicals, and offer excellent dampening properties.