SKF extends service
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Customer reference case | SKF self-aligning ball bearings SKF extends service life of bearings in textile processing machine by more than 3 times A common challenge As Northern India’s leading textile maker, Nahar Industrial Enterprises Ltd. operates several modern manufacturing sites that spin, weave and process woollen, cotton and blended fabrics, garments and more. Faced with costly and recurring guide roller bearing failures in a range of pretreatment machines, Nahar looked to SKF for a solution. The problem is common in textile production. Bearings in spinning and fabric processing machines operate in a high temperature environment exposed to steam, chemicals and caustic solutions. Guide roller bearings are also subject to damage from dynamic misalignment. Ultimately, bearing seal failures result, largely due to the effects of heat and chemical fumes. In Nahar’s case, heat, steam and chemical attack was causing premature ageing and failure of the seals, resulting in contaminant ingress, washout and degradation of the lubricant. Sometimes seals were even dislodged completely from the bearing. Steam was also causing the polymer cages inside the bearings to soften and jam, further contrib- THE POWER OF KNOWLEDGE ENGINEERING uting to premature failures and costly unplanned downtime. Depending on their position on the machine, the bearings in Nahar’s facilities were failing in as little as two months. During the shutdowns that followed, fabrics were often overexposed to chemicals, leading to dye variations, defective products and lost proitabili

Solution features • Handles up to 1.5 degrees of misalignment • Steel cage for increased heat and chemical resistance • Sheet steel-reinforced NBR seal • Bearing internal radial clearance increased to C4 • High-temperature grease with higher grease ill Solution benefits • Increased reliability • Bearing service life increased by more than 3 times • Greater machine uptime and productivity • Reduced maintenance demands • Lower operating costs • Improved profitability Application details • Textile PTR machine: guide roller bearings in washer tanks/steamer chambers • Speed: 70 m/min • Operating...