Schfflers bearing expertise ensures the highest levels of dynamics, efficiency and comfort on e-bikes

2014-08-27 | 000-005-243 DE-EN

SCHAEFFLER AG, FRIEDRICHSHAFEN/SCHWEINFURT

Solutions for the mobility for tomorrow - Schaeffler at EUROBIKE 2014 (Hall A3, Booth 811)

Schaefflers bearing expertise ensures the highest levels of dynamics, efficiency and comfort on e-bikes

Schaeffler provides comfort, dynamics and efficiency on e-bikes with its portfolio of FAG sensor bottom brackets and large range of other components from the INA and FAG brands. The focus is always on freedom from maintenance and a long operating life with the highest possible level of smoothness.

Sensor bottom brackets: Assistance on demand thanks to precise control

The basic sensor bottom bracket model BBRS enables non-contact measurement of the speed and direction of rotation. Up to 36 impulses are generated per revolution of the spindle The resolution and accuracy of the torque sensor system are a prerequisite for the quality of the output signal and rapid response of the motor control system. The rider is thus provided with optimum assistance in every situation. This is associated not only with comfort, dynamics and riding pleasure but also with maximum efficiency, which results in an increased range.

Smooth running due to FAG deep groove ball bearings

FAG deep groove ball bearings are used in front wheels, rear wheels and the center drive. The improved surface structures of raceways and balls reduce noise generation by 50 percent in comparison to conventional deep groove ball bearings. These improvements in combination with the improved surface quality also reduce friction by 35 percent. The lower frictional torque and reduced heat generation make this bearing very suitable for high speeds.

Seals also play a decisive role in terms of reliability and energy efficiency in dusty and wet conditions. The newly developed efficient lip seal (ELS) offers an unbeatable combination of reliability and energy efficiency. This enables the frictional torque and thus the power loss of the wheel bearing to be significantly reduced at increasing speeds with improved sealing action. The new ELS therefore fulfills seemingly contradictory requirements: With its increased sealing action it provides better protection for the bearing and improved smooth running.

Other bearing positions and components

FAG angular contact ball bearings fitted as headset bearings in the connecting point between the handlebar stem and the bicycle fork ensure the necessary precision and safety. The forces acting on the stanchions of the suspension forks during riding are supported and transmitted by INA plain bearings with ELGOGLIDE. INA drawn cup roller clutches are used as one-way clutches in the drive of the electric motor. They transmit high torques in one direction. The FAG bottom bracket spindle connects the pedals and sensor unit in the drive. A special Corrotect coating and bottom bracket spindles of various designs are available as options.

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