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Over time, the bearing's inner race was turning slightly slower than shaft and Links of London Charms wore, a little bit at a time. "When we would look between the shaft and the inner race, there would sometimes be a gap of as much as 1/8 inch at the top," he said.Rexnord ZAF6000. series SHURLOK Adapter Mounted Roller Bearings on this tail pulley shaft of a coal conveyor features a positive locking system that maintains mounting tightness during operation. Because many of the bearings are in difficult-toreach locations, regular inspection has always been a problem. Yet it is important to avoid unscheduled shutdowns. "We can hold enough coal for about 12 hours of operation, so we have to have everything ready to go Links of London Y Charm we replace a bearing, unless we can do it during a scheduled outage,'" said Soma. Because the shafts were damaged, this meant machining a new shaft as well as replacing the bearings. Some shafts are almost eight feet long and close to six inches in diameter. To eliminate the damage caused by the set screw mountings, some bearings were installed with a press fit. However, this required that the shafts be machined to tighter tolerances and the bearings had to be pressed on hydraulically at the site. Access was sometimes difficult and when one bearing failed because of an oversight in lubrication, it had to be cut off. In an effort to minimize the need for further time-consuming bearing replacements and avoid unscheduled downtime caused by bearing failure, the facility installed Rexnord ZAF6000 series Links of London Z Charm Adapter Mounted Roller Bearings on several applications. They feature a positive locking system that maintains mounting tightness during operation. The tapered adapter sleeve provides greater shaft grip and eliminates the shaft damage caused by loose bearings. Several other benefits became apparent. Installation was easier with the new bearings, which incorporate a spyglass optical strain sensor (OSS). This feature provides feedback to achieve shaft grip and eliminates damage to the shaft and bearing caused by improper tightening during bearing installation. In addition, the tapered sleeve makes it Links of London A Charm to remove the bearings from the shaft when necessary without causing damage, which saves time and repair costs. According to Soma, the new bearing design simplifies shaft preparation and eliminates the need to machine to tight tolerances.