Detailed Product Description

Product characteristic , Rotary damping coefficient small .  The radial direction beats low,  Revolves smooth ,Waterproof dustproof , Leak-proof high .  Exempts maintains .  Life cycle long, product elects to expect , High accuracy supporting roller special-purpose steel pipe ,  Steel plate ram as in ramjet bearing seat ,  Big windage supporting roller special-purpose bearing , Multiple labyrinth type polycarbonate seal .