Aftermarket September 2022

SEPTEMBER 2022 AFTERMARKET 49 www.aftermarketonline.net Matthias Zink, CEO Automotive Technologies of Schaeffler, said: “TriFinity is no bigger than standard two- row ball bearings, but can transfer greater axle loads, while also providing a longer service life and better rigidity. Meanwhile, Schaeffler’s new high- efficiency ball bearing with centrifugal disc combines the benefits of both open-bearing and sealed-bearing designs, with a longer service life compared with an open bearing and at a lower cost.” Matthias continued: “Innovative bearing technologies are a core part of our product DNA and underpin the success of our Automotive Technologies division. Schaeffler is looking to fit its efficient and high-precision bearing solutions in electrified powertrains and chassis systems, as well as conventional powertrains, to further enhance these systems and make them more sustainable.” Schaeffler has also set up a new Bearings business division. “E-mobility represents a major opportunity for our bearings business,” added Dr. Dieter Eireiner, the head of the new business division. “Working with our customers, we intend to take bearings to a whole new level.” Dayco: Toyota Yaris rear wheel bearing installation Dayco has produced a step-by-step guide for the correct installation of rear wheel bearings on the 2018 Toyota Yaris (P13). Dayco UK’s National Sales Manager Steve Carolan observed: “Despite the fact that wheel bearing replacement is a relatively common task within the workshop, there is still some confusion among technicians between the different wheel bearing technologies and the fitting procedures that need to be followed to install them correctly. “Before starting the replacement process, it is advisable to check the brake system for fault codes using a suitable diagnostic tool, and to re-check the system once the job has been completed. In addition, if a bearing replacement requires the removal of any of the vehicle’s steering and suspension components, it is also recommended that the steering geometry is also assessed after the work has been carried out.” Getting onto the guide itself, Steve said: “After placing the vehicle on a lift and removing the rear wheels, with the handbrake released, use two screws to help remove the brake drum. Please refer to Fig.1. If this proves difficult, loosen the handbrake cable to ensure that the brake shoes are well away from the inner surface of the drum. Then disconnect the electrical connector for the wheel speed sensor. “The rear wheel bearing is a Generation 3 design and secured in position on the wheel carrier assembly with four bolts, which now need to be removed. Please refer to Fig.2. This then allows the bearing/hub assembly to be taken off. Refer to Fig.3.” Steve continued: “Before replacing the wheel bearing from the Dayco kit (KWD1070), it might be necessary to clean the bearing mounting surface on the assembly to ensure it fits correctly and sits true, when secured in position with the new bolts, which are also supplied in the kit and must be torqued to 90 Nm. Refer to Fig.4. “Reattach the brake drum and reconnect the wheel speed sensor before refitting the wheel and tightening the wheel bolts to 103 Nm. Please refer to Fig.5. Remember to retighten and, if necessary, adjust the handbrake to ensure its correct operation.” Steve added: “Naturally, before returning the car to the owner, always carry out a road test to ensure the job has been completed successfully, that the braking system is working effectively and that no ABS warning lights show an alert message on the dashboard.” He concluded: “Please note, whenever replacing wheel bearings, the vehicle manufacturer’s specified torque values must be applied to all the relevant fixings and always replace any bolts that are for one use only.” To assist technicians fit replacement wheel bearings correctly and efficiently, Dayco has also produced several installation alongside its step-by-step guides: www.youtube.com/c/DaycoOfficial For more information, visit: www.daycoaftermarket.com There is still some confusion among technicians between the different wheel bearing technologies and the fitting procedures ” Fig. 2 Fig. 3 Fig. 4 Fig. 5