Bearing technology used in hybrid bikes and motorbikes

However, it is not only the bike concept that is new, but also its drive system. The central component is the patented drive design, which has been developed internally by eVinci's parent company LSP. The PM (permanent magnet) electric motor transfers power using a CVT (continuously variable transmission) that switches gears automatically under full load to ensure smooth acceleration. The drive allows the bike to accelerate from 0-40km/h in just four seconds, while still retaining high efficiency.

One of the principal tasks in the development of Pike I was the selection of suitable rolling bearings for the drive and chassis axles, such as forks, bottom brackets and wheel hubs.

Rohne added: “As Pike I is also intended for off-road use, and naturally has to withstand wet conditions, open bearing locations have to be exceedingly well sealed.”

eVinci was supported in the design phase by NSK, which recommended that the drive be equipped at multiple points with high quality 6000 series deep groove ball bearings. These popular NSK bearings are manufactured in high purity steel to reliably withstand radial and axial loads. Depending on the specific application, 6000 series bearings are equipped either with a seal, or simply a shield. For those applications where a seal is required, NSK´s proven DDU technology represents an efficient, patented labyrinth seal which combines outstanding sealing properties along with low friction levels.

For the internal bearing points, open NSK deep groove ball bearings are used. In total, five different bearing types and sizes are installed on the Pike I. According to eVicni, smooth running and compact design (which also ensures low weight) were the key factors governing drive component selection.

Rohne concluded: “The co-operation with NSK worked very well. We only use high quality components from suppliers because we have stringent requirements with respect to finish, reliability and durability.”