POM Plastic Bearing Glass Ball Bearings No seals / Lubricant Required Waterproof
Material： ♦Bearing Ring:pom Plastic. Pom Has a Small Friction Factor, Good Abrasion Resistance, and the Use of High-strength Glass Balls, the Rotation Is Smoother, and More to Reduce the Generation of Noise.
POM Plastic Bearing Glass Ball Bearings No seals / Lubricant Required Waterproof
Material： ♦Bearing Ring:pom Plastic. Pom Has a Small Friction Factor, Good Abrasion Resistance, and the Use of High-strength Glass Balls, the Rotation Is Smoother, and More to Reduce the Generation of Noise.