High vertical energy absorption and excellent control of riding no bonding, Unique design with out bonding, Only polyurethane based rings in between metal plates hence no likelihood of bond failure resulting very high service life. High load bearing capacity with high reliabilityreduction in wear of housing and bogie centre pivot simple design easier configuration and null ring and, Maintenance sleeves housing can be independently replaced on damaged. Excellent energy absorption resulting higher hunting thresholds consistent performance at extensive range of temperature settings and varying weather conditionhighly economicalsize forged housing base 280 mm, Cast polyurethene top dia, Rings o 153 mm. D 103 mm x i. D 40 mm x thk 31. 3 mm 3 rings two partition steel plates in between the rings.