6904 20x37x9mm Chrome Steel Thin Section Deep Groove Ball Bearing for Bike Motor Robotics RC Drones

6904 Thin Section Ball Bearing – Maximum Performance in Minimal Space

With its ultra-thin 20x37x9mm profile, の 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.

主な特長:

• Durable Construction Material
  The 6904 bearing is manufactured from high-carbon chrome steel, through-hardened to optimal hardness for rolling contact fatigue resistance. This material delivers excellent wear resistance and dimensional stability, ensuring consistent performance across repeated load cycles and extended service intervals.

• Low Noise, Low Vibration
  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, office machinery, 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, の 6904 transforms design possibilities. Whether developing slimline medical devices, compact robotic joints, or lightweight drone components, this bearing provides reliable rolling support without compromising design goals.

• Lightweight, 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.

アプリケーション

• Robotics and Automation

• Electric Motors and Drives

• Bicycles and Light Mobility

• 医療機器

• Drones and UAVs

• Consumer Electronics and Office Equipment
• Power Tools
• 精密機器
• Aerospace Components