Extending Bearing Life With NSK’s Sealing Solutions

 In E3, NSW, UK

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Down in the Southern Riverina region of New South Wales, it is nearly ‘go time’ for har­vest­ing most crops, which for the most part con­sist of cere­als, legumes, oilseeds, hay and a grow­ing cotton indus­try.

The team at Marshall Ag Repairs, an agri­cul­tur­al machin­ery and parts reseller and repair busi­ness based in Finlay, have been busy ser­vic­ing balers and other agri­cul­tur­al equip­ment for their cus­tomers. The shop also stocks a large range of earth­mov­ing machin­ery parts and agri­cul­tur­al equip­ment to help its cus­tomers with their machin­ery main­te­nance.

Troy Marshall, the man behind Marshall Ag Repairs, has been work­ing with BSC to source a wide range of chains, bear­ings, seals, hoses, and other agri­cul­tur­al parts for his busi­ness.

“I’ve been per­son­al­ly work­ing with BSC for about five years, that is since I pur­chased this busi­ness, but they’ve been sup­ply­ing prod­ucts to the exist­ing busi­ness for over 20 years now. BSC offers the biggest range of sup­plies for all prod­ucts that we need. Whatever we need, we just tell them, and they supply,” says Troy.

Troy’s rec­om­men­da­tion to his cus­tomers is to always use reli­able bear­ings when they ser­vice their balers and com­bine har­vesters to avoid unnec­es­sary fail­ures and down­time. In his own store and work­shop, he only stocks one brand for bear­ings and that is NSK prod­ucts.

“We don’t stock any other bear­ing in our shop. NSK bear­ings are all that we pro­vide to our cus­tomers and we have always used the bear­ing suc­cess­ful­ly for our cus­tomers. Whenever we repair com­bine har­vesters or balers for farm­ers, if we find that they are using poor qual­i­ty bear­ings, we steer them towards chang­ing to NSK bear­ings for more reli­a­bil­i­ty,” says Troy.

BSC’s Product Manager for Industrial Bearings, Tony Tormey says baling can impose very heavy loads on machine com­po­nents, which is why it is essen­tial that the bear­ings can sus­tain these stress­es.

“The process of con­vert­ing windrows of crop into bales from pick­ing up the crop, com­pact­ing it and press­ing inside the bale cham­ber, and eject­ing the com­plet­ed bale. Multiple bear­ings are required to pro­duce an effec­tive and pre­cise baling process,” says Tony. “NSK’s range of DDU sealed deep groove ball bear­ings are designed to with­stand the demand­ing con­di­tions of agri­cul­tur­al appli­ca­tions ensur­ing the machine is crop ready.”

Where a machin­ery owner is look­ing to extend the bear­ings’ ser­vice inter­val, for exam­ple in farm­ing appli­ca­tions with exces­sive dust and con­t­a­m­i­na­tion, Tony sug­gests adopt­ing one of NSK’s seal­ing con­fig­u­ra­tions to extend the ser­vice life of the bear­ings.

As David Healey, NSK Australia Sales Engineer, explains, NSK offers three types of main­te­nance-free seal­ing options, with the most common and the high­est-in-demand being the ‘DU’ seal con­fig­u­ra­tion.

“The unique ‘DU’ seal devel­oped by NSK is the most effec­tive seal arrange­ment giving max­i­mum pro­tec­tion against all con­t­a­m­i­nates,” says David. “The com­po­si­tion of the seal is an envi­ron­men­tal­ly-friend­ly Nitrile Butyle rubber incas­ing a metal sup­port. The work­ing tem­per­a­ture range of this seal is ‑30˚ to 110˚ Celsius. The patent­ed triple lip mech­a­nism con­sist­ing of two labyrinth seals and a con­tact seal, giving excel­lent pro­tec­tion against dust and water enter­ing the bear­ing whilst main­tain­ing good grease reten­tion.”

David says the DU seals are best suited to low-speed and low-tem­per­a­ture appli­ca­tions where max­i­mum seal­ing is crit­i­cal. Where higher speed limits are required, NSK offers the ‘V’ seal.

“The patent­ed ‘V’ seal gives excel­lent seal per­for­mance with­out fric­tion between the bear­ing inner ring and the seal by only having two labrynths. The non-con­tact lip con­fig­u­ra­tion reduces the drag in the bear­ing. Therefore, the bear­ings have less heat build-up and can rotate faster,” says David.

“Another pop­u­lar seal is ‘Z’ shield. Like the ‘V’ seal, it is suit­able for higher speed limits and pro­vides superb per­for­mance through a wide tem­per­a­ture range. They pro­tect bear­ings from large con­t­a­m­i­nants but do not pre­vent the entrance of small par­ti­cles. Like the ‘DU’ and ‘V’ types seals, this shield also has two labrynths,” he adds.

According to Troy, the NSK seal­ing con­fig­u­ra­tion are a good com­ple­ment for NSK bear­ings.

“If any of our cus­tomers need to extend their bear­ings’ life, then we rec­om­mend one of NSK’s seal­ing options and it adds that extra pro­tec­tion that they need to bring down their main­te­nance costs,” he con­cludes.

Read more arti­cles like this at: www.lets-roll.com.au


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