Produktionstechnik

NSK Silver-Lube® bearings withstand wash-down fluids on bottling line conveyor

In operations where contact with process fluid is unavoidable, poorly specified bearings that fail prematurely can prove costly in maintenance labour and production downtime. For this reason, increasing numbers of food and beverage plants are turning to the beneficial attributes of NSK’s Silver-Lube® bearing units. Silver-Lube® provides optimal protection against the ingress of wash-down water and detergent while simultaneously ensuring corrosion resistance.

Among those testifying to the advantages of Silver-Lube® is a market-leading milk processing and bottling plant. The facility was experiencing repeated bearing failures on five conveyor lines, where the company was changing bearings approximately every 16 weeks. With every replacement taking approximately one hour to complete, the plant invited NSK’s team of experts to recommend a solution.

As part of its AIP Added Value Programme, NSK’s specialist engineers analysed the failed bearings, concluding that the ingress of water during the wash-down process was causing internal corrosion and premature failures. Further review of the application and operating conditions led the NSK team to recommend its proven Silver-Lube® housed bearing units. The plant commenced a trial of Silver-Lube® bearings featuring food-grade grease on one of its bottling line conveyors, a solution that resulted in an immediate improvement and significant lifetime extension.

Silver-Lube® features durable and heat-resistant silicon rubber seals that protect against fluid penetration and prevent washout of the lubricating grease. Complementing the seal is a stainless steel flinger, which prevents the ingress of bacteria and helps the seal to resist impact damage. Silver-Lube® bearings also comprise numerous corrosion-resistant components, including inserts with high-grade stainless steel rings and balls, cage, flingers, and set screws. Furthermore, the bearing insert sits within a high-strength PBT thermoplastic housing featuring a stainless steel grease nipple.

After the initial trial, the plant implemented Silver-Lube® housed bearing units on all five of its milk bottle conveyor systems. The result: a reduction in machine downtime, maintenance labour and replacement bearings costs, leading to annual savings of €7,625. Indeed, no failures of Silver-Lube bearings occurred for more than five years.

Importantly, Silver-Lube® bearings units can accommodate initial misalignment from mounting errors, making them ideal for bottling machines and conveyors used by the food  and beverage industry. Additional attributes include: a paint-free resin housing to eliminate any risk of chipping or flaking; a cavity-free design to avoid ‘bug traps’ that might harbour bacteria or mould; a smooth finish to prevent dirt adhesion; and suitability for working temperatures from -20 to +90°C.

 

Über die NSK Deutschland GmbH

NSK Europe Ltd. is the European organisation of the Tokyo-based bearing manufacturer NSK, which was founded in Japan in 1916 and today employs nearly 30,400 people in its worldwide operations. The products and solutions provided by the industrial and automotive supplier can be found wherever things move. In addition to nearly all types of rolling bearings, the company’s portfolio includes housed bearings, linear technology, wheel bearing units, transmission and engine bearings and steering systems. The company is oriented to perfection in all of its business activities. Its aim is quality leadership in its industry, which it strives for through a continuous process of improvement, excellent product development, optimised production processes and customer-oriented service processes. In fiscal year 2020, the more than 4,350 employees of NSK Europe Ltd. generated sales of over € 792 million.

www.nskeurope.com

Firmenkontakt und Herausgeber der Meldung:

NSK Deutschland GmbH
Harkortstrasse 15
40880 Ratingen
Telefon: +49 (2102) 4810
http://www.nskeurope.de

Ansprechpartner:
Simone Albayrak
Telefon: +49 (2102) 481-2152
E-Mail: albayrak-s@nsk.com
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