Need-to-know Info:- ... 1. Improper lubrication and contamination are responsible for 70% of all early bearing failures. 2. Dirt is responsible for more than 90% of all bearing troubles. 3. Bearing life is reduced by approximately 20% with outer race rotation. 4. When a bearing is press fitted onto a steel shaft or press fitted into steel or cast iron housings, the internal clearance is reduced by 80% of fit interference. 5. Deep groove ball bearings (Conrad) are ideally designed to permit radial loading and thrust loading from either direction (the combined load should not exceed 100% of radial load rating). 6. Maximum type ball bearings (with precision ground filling slots) have a radial capacity of 10% to 15% more than the Conrad type. Thrust is limited to approximately 10% of radial capacity. 7. The angular contact design permits this bearing to carry high thrust in ONE DIRECTION, equal to 150% of its radial load capacity. 8.Bearings lubricated with petroleum greases have a shelf life of approximately seven years. 9. If you double the speed of a bearing, you cut its life in half. If you double the load on a ball bearing, you cut its life to 1/8 of its original life. 10.Coefficient of thermal expansion for steel is .00007 inch per ºF.
Posted on: Mon, 30 Sep 2013 21:57:06 +0000