JR□ rotary joints are low rotary torque and compact.
Center through port *1 is applicable for not only hydraulic and air pressure but also high volume coolant.
Each part is highly durable, and sealing provided by Kosmek has a low torque, highly durable and
high capacity design that allows for a longer life of the component.
（*1, JRB is the only model with a center through port.)
