PU6x19x5ZZ Polyurethane Rubber metal shielded Ball Bearing 6mm x 19mm x 5mm |
Polyurethane ( PU) is a new type of polymer composite materials between rubber and plastic, offering higher load bearing capacity compared to plastic, polyurethane offer superior impact resistance, while good mechanical properties. Polyurethane have better abrasion and tear resistance than rubber.
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