方面: 8mm inner diameter × 22mm outer diameter × 7mm width
Ring & Ball Material: Zirconia (ZrO?): High fracture toughness, excellent wear resistance, ideal for moderate to high loads
Density: Approximately 40–60% lighter than steel, reducing centrifugal force and allowing higher rotational speeds
Corrosion Resistance: Inert to most acids, alkalis, salt water, and solvents – will never rust
Electrical Properties: Non-conductive (excellent electrical insulation), 无磁性
623 Plastic Ball Bearing – Maintenance-free, 无磁性, corrosion-resistant. Ideal for food machinery, medical devices, 电子产品, 化学加工, and underwater applications where metal bearings fail. Silent, 轻的, and self-lubricating.
类型: Deep groove ball bearing (plastic radial bearing)
内径 (d): 3 毫米 / 0.1181 in
Outer Diameter (D): 10 毫米 / 0.3937 in
Width (乙): 4 毫米 / 0.1575 in
Race / Ring Material: POM (Polyoxymethylene / Acetal) or PP (Polypropylene)
Ball Material: Glass (无磁性)
Cage (Retainer) 材料: 尼龙 (Polyamide 66, often glass fiber reinforced)
Sealing Type: 打开 (no seals) – other options available upon request
Dynamic Load Rating: Low – suitable for light to medium loads
Maximum Speed: Moderate (limited by plastic material properties)
工作温度: -20°C to +80°C (typical range)
润滑: Self-lubricating / Dry operation – no oil or grease required
这 69 series ultra-thin profile saves critical radial space while maintaining excellent load handling. 机器人技术的理想选择, 电动机, bicycles, drones, medical devices, 数控主轴, and compact automation equipment.
模型: 6904 / 61904
系列: 69 系列 / Extra Thin Series
Bore Diameter (d): 20 mm
Outer Diameter (D): 37 mm
Width (乙): 9 mm
Weight: 0.036–0.040 kg
Material: Chrome Steel