is fitted with the ASB encoder facing inwards towards the sensor, but also that care is taken not to damage the encoder whilst checking or fitting, as even dropping or knocking the wheel bearing can cause damage to the encoder, rendering the bearing unsafe to fit.” Kevin added: “To ensure that replacements are fitted correctly, First Line provides complete kit solutions, rather than single bearings. These wheel bearing kits include all the necessary components, which may not always be included in the OE or competitor equivalent. The bearings come pre-lubricated and, where applicable, also include an additional grease sachet.” For more information, visit: firstlineltd.com Extraordinary evolution Moving over to SKF Vehicle Aftermarket, Philipp Herlein, General Manager and Head of the Global Automotive Aftermarket at SKF Group, said: “Over the past few decades, the industry has witnessed an extraordinary evolution in bearing technology. Standardisation of bearing sizes in ISO (International Organization for Standardisation) and the American Bearing Manufacturers Association (ABMA) has helped the industry to engineer new machines. Despite standardised dimensions, load ratings of bearings have soared, reducing the odds of failure. “SKF has analysed that most bearing failures are not due to classical metal fatigue of the rolling contact surfaces. Rather, they are caused by assembly related factors such as poor adjustment, inadequate lubrication, or the infiltration of dirt via sealing failures. This revelation prompted us to focus on providing comprehensive solutions that encompass not only superior bearings quality but also proper installation, maintenance and protection.” Philipp continued: “Friction reduction became a central pursuit for us. We understand that by minimizing friction, we could enhance the efficiency of automotive applications and contribute to the reduction of carbon dioxide emissions. Committed to sustainability, SKF set a goal to decarbonise our operations by 2030, aligning our efforts with the urgent need for environmental stewardship. To considerably reduce friction in wheel ends, we introduced our Hybrid X-Tracker hub bearing unit, which combines the best of ball-and-taper bearings, resulting in a 30% reduction in friction. It quickly became a favoured choice for electrical vehicles, aligning with the industry's drive towards power density and eco-consciousness.” New challenges According to Philipp, the rise of EVs also presents new challenges: “With higher speeds, accelerations and decelerations, the noise generated by the bearings requires special attention. SKF probed the realm of silent operations, ensuring that EVs provide a serene and comfortable experience. Moreover, SKF recognises the challenge of electric current flow through bearings, particularly with the emergence of 800-volt technology. We responded with hybrid bearings featuring ceramic balls, effectively preventing electrical damage, excelling in poor lubrication conditions, and delivering exceptional performance at high speeds and accelerations.” Central part On diagnosing issues emanating from bearings, Bob Wiffen, Workshop Solutions Director at LKQ Euro Car Parts said: “Wheel bearings are quite literally a central part of overall wheel assembly, and a critical component of every vehicle, so a failure to deal with worn bearings can have real performance and safety implications. Given their position in the mechanics of a vehicle, it’s impossible to know if a bearing has failed unless and until it has already happened. However, there are a number of symptoms drivers might report that indicate their bearings are worn. These include a humming or growling noise as their vehicle accelerates, a looseness in steering, and steering wheel vibrations when the vehicle is turning. “Asking your customers if they are experiencing any of these symptoms can help to identify bearing issues before they become dangerous, providing an upselling opportunity while helping to instil confidence that your customers’ safety is your priority.” On caring for bearings, Bob continued: “As well as helping the wheels spin freely, bearings control braking and cornering forces, and support key systems including ABS, traction control, parking, braking and cruise control. That’s why it’s vital to take extra care when servicing wheel bearings. Because they are regularly under significant pressure, if installation does not correspond with vehiclespecific torque values, the bearings will be left operating under abnormal or unsafe loads, which can be dangerous and can compromise driver safety. “Because bearings often wear out in pairs, and cannot be repaired, there is an opportunity for independent workshops to upsell. If a wheel bearing is worn, the alternative side should always be checked as it’s likely that it will need replacing too. Often, the customer is receptive to the idea of replacing them at the same time.” Bob added: “It’s important to offer customers bearings at a range of price points to choose from. This can help customers to feel valued and builds their trust in the garage they’ve chosen, especially given the high cost-of-living at the moment. We recently introduced a new range of steering and transmission products under our popular Starline brand, including more than 700 sets of bearings and wheel hubs for front and rear axles, complete with a three-year warranty for peace of mind.” below: Bearings from First Line SEPTEMBER 2023 AFTERMARKET 47 www.aftermarketonline.net
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