Insights

• • Case Study
• April 5, 2018

PROBLEM Our customer uses a universal shaft assembly to drive his printing press rolls. The need to move the roll creates some high misalignment angles dictating a universal assembly. They found some objectionable vibration during operation. SOLUTION Upon review of their new operating requirements, […]

• • Case Study

PROBLEM Our customer manufacturers corrugated boxes. One of their roll drives involved a universal-joint assembly to accommodate a rather severe angle (20°). Unfortunately, the shaft failed on a regular basis. They needed to eliminate this costly maintenance headache. SOLUTION We reviewed the application. The […]

• • Case Study

PROBLEM A printer found that he was replacing a pin and block style universal joint on his embosser weekly. Heavier universal joints only seemed to result in gear box bearing failures. SOLUTION A careful review of the installation revealed that the misalignment involved compound […]

• • Case Study

PROBLEM The customer had operated our water-cooled brakes on his unwind stands for eight years with very little maintenance. However, some additional demands on his cooling system resulted in some corrosion and capacity concerns. SOLUTION We closely reviewed their tension needs and thermal horsepower […]

• • Case Study

PROBLEM Over a period of time, the forming board and foil blades on this paper maker’s fourdrinier wore down. As a result the drying efficiency of his machine was dropping off significantly. Given the several thousand dollars cost of replacement, our customer did not […]

• • Case Study

PROBLEM Our customer operates paper converting equipment including a water cooling tension brake. Since the equipment was manufactured off-shore all of the components were metric. In this operation, the brake was the only regular maintenance item. However; given the high price and limited availability […]

• • Case Study

PROBLEM The wet end of a paper machine presents a number of maintenance challenges. A key part of the system are the foil blades on which the forming fabric rides. The constant rubbing action results in wear of the blades necessitating resurfacing and eventually […]

• • Case Study

PROBLEM Our paper converting customer found that they were replacing their metal brake drum on an annual basis. Closer examination revealed that the excessive wear pattern matched the spacing of the rivet holes. It was concluded that in this application and environment, some aggressive […]

• • Case Study

PROBLEM A paper mill recently changed over from a belt drive take off to an individual 150 HP DC motor. To complicate matters, space was limited and the mounting resulted in fairly significant misalignment. As a result, the original gear coupling failed on a […]

• • Case Study

PROBLEM For years, a mill customer satisfactorily operated several water cooled tension brakes. Over a period of time, their cooling efficiency had dropped off and leaks had become an increasing problem. SOLUTION A careful examination revealed that corrosion had opened up the o-ring grooves […]