- High temperatures - Extreme protection - Slow movement - Low maintenance Eich specialized on solution development within applications apparently showing failures of standard bearing types. With regards to this type of customized production, Eich production is dominated by middle sized series of individual bearings. Within the Eich product range the spring bush bearing type BR was developed for extreme operational conditions. The inner and outer ring of the bearing, are made from a specially treated spring steel. Essential outcomes for Eich spring bush bearings are: inured to heat, dirt and impact loads; low installation height.