Special custom-made versions of the Canoe Spheres can be produced for a reasonable cost in a matter of weeks. The basic shape of custom produced canoe spheres can be made any desired geometry, and the spacing between the spherical segments can be any practical dimension.
The choice of materials for Canoe Spheres is quite limited, because of the very high stresses that are involved with a sphere in contact with a flat. The standard material for manufacturing Canoe Spheres is a Martensitic stainless steel. This very fine grain material is hardened to 58 HRC. This material has a very high tensile strength of 285,000 PSI. The desirable parameters are high Young’s modulus, fine grain, good hardness, high tensile strength and some corrosive resistance.
The machine used to grind the 40 inch (one meter) diameter spherical surfaces on the Canoe Sphere is a one-of-a-kind, custom-built machine that can not generate any other radius. If you have an application that requires ultra-precise performance that is beyond our ground parts, we have designed a custom lapping machine that will improve the sphericity and the surface texture of the spherical surfaces of the Canoe Sphere. If you have an important application that requires more accurate location of heavy loads, it will require three months for us to build this machine and lap the first parts for you. We are constantly trying to improve our products, but so far the present precision ground quality has been adequate for all customer needs.
CS-750-SM Canoe Sphere, Sub Mini – $145.00
CS-1125-CPM Canoe Sphere, Miniature – $160.05
CS-2000-SM Canoe Sphere (2” Diameter) Surf – $153.25
CS-2000-CPM Canoe Sphere (2” Diameter) Cylinder – $173.25
CS-5000-SM Canoe Sphere Monster – $855.00
CS-5000-CPM Canoe Sphere Monster – $855.00