NTN’s Constant Velocity Joints Dramatically Increase Life of Pelletizer Posted on February 18, 2022November 30, 2023 NEWSNEWS NTN’s Constant Velocity Joints Dramatically Increase Life of Pelletizer 1 Oct 2023 - Toronto - Success Report - Products One of the world’s largest chemical companies was experiencing failures on a constant velocity joint shaft used in an extruder that pushes polyethylene into a cutter to create pellets. The regular failures were costing the company $172,200 per year in replacement part costs, maintenance, and downtime. NTN’s engineering and sales support team conducted a comprehensive diagnosis of the pelletizer and determined that the CVJ was failing every six months due to ball fatigue damage. The damage was a result of the CVJ being significantly undersized based on the loading conditions. The NTN Solution With NTN being a full line CVJ manufacturer, our team was able to recommend a larger CVJ design that was more suitable to the high application loads, thus reducing the ball fatigue damage. The Result The NTN solution lasted six times longer! Our CVJ successfully ran for three years compared to the competitor’s CVJ that was failing every six months. The increased uptime, decrease in annual maintenance, and the reduced acquisition cost resulted in $142,500 in annual cost savings for the customer. Value added breakdown UPTIME IMPROVEMENT $125,000 REDUCED ACQUISITION COST $15,667 MAINTENANCE REDUCTION $1,833 DOCUMENTED COST SAVINGS $142,500 ANNUALIZED COST SAVINGS $142,500 Constant Velocity Joints Greater allowable operating angle The maximum allowable operating angle with the CVJ proper is 42°. Though varying depending on the intended RPM, the maximum allowable operating angle of the joint equipped with a boot is 25° at dynamic state, and 38° at static state. Superb sealing, and lubrication-free Being sealed with bellows type boots, the CVJs can be used in environments where they may be frequently subjected to water splash, humidity and dust. Greater expansion The CVJs with intermediate slide spline shaft offer greater axial expansion. Easy installation and removal The CVJ proper is secured to the flange hub with through bolts. Thus, the joint can be readily installed or removed. Let’s blow away your production goals We’re here to help you achieve your productivity and performance goals. For more information, contact your NTN Sales Representative or call 1-888-412-4122. For technical questions, email techsupport@ntn.ca. Download Success Report About NTN Founded in 1918, NTN is one of the world's largest producers of premium quality ball and roller bearings, long recognized for the most stringent quality standards in the industry. With plants around the globe and a strong domestic manufacturing network, over 80% of the products sold by NTN in North America are made by one of the ten plants the company operates in Canada and the USA. NTN is also a leading provider of bearing services which include technical support, maintenance and reliability services, engineering consulting and training. NTN's company vision is "to transform into Canada’s leader of the Ultimate Bearing Experience." NTN Contact Rita Payne, NTN Marketing: rpayne@ntn.ca See all News