6904 20x37x9mm 铬钢薄截面深沟球轴承，适用于自行车电机、机器人、遥控无人机

6904 Thin Section Ball Bearing – Maximum Performance in Minimal Space

With its ultra-thin 20x37x9mm profile, 这 6904 thin section deep groove ball bearing belongs to the 69 series—a family of extra-thin metric ball bearings designed for applications where radial space is critically limited.This constant-thin geometry allows designers to incorporate larger shaft diameters without proportionally increasing bearing envelope size—a decisive advantage in weight-sensitive and space-constrained equipment.

主要特点:

• Durable Construction Material
  这 6904 bearing is manufactured from high-carbon chrome steel, 经过彻底硬化至最佳硬度，以实现抗滚动接触疲劳. This material delivers excellent wear resistance and dimensional stability, ensuring consistent performance across repeated load cycles and extended service intervals.

• 低噪音, 低振动
  The precise raceway finish and ball quality of the 6904 result in very low noise and vibration characteristics. This makes the bearing particularly suitable for noise-sensitive applications such as medical equipment, 办公机械, and residential HVAC systems.

• Save Design Space
  The 6904’s defining advantage is its exceptionally slim cross-section. With an outer diameter only 17mm larger than its bore and a width of just 9mm, this bearing fits where standard bearings simply cannot. For engineers working on miniaturization or weight reduction, 这 6904 transforms design possibilities. Whether developing slimline medical devices, 紧凑型机器人关节, or lightweight drone components, this bearing provides reliable rolling support without compromising design goals.

• 轻的, High Efficiency
  Forged from premium Chrome Steel (ABEC-3) and factory pre-lubricated with high-temperature machine grease. It delivers a buttery-smooth rotation and outstanding radial load distribution without adding unnecessary weight to your drones or precision instruments.

应用领域

• 机器人与自动化

• Electric Motors and Drives

• Bicycles and Light Mobility

• 医疗设备

• Drones and UAVs

• Consumer Electronics and Office Equipment
• 电动工具
• 精密仪器
• Aerospace Components