Ningbo Kent Bearing Co., Ltd
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Product Description: 681X Miniature Bearings for Precision Instruments
The 681X series miniature bearings are ultra-compact, high-precision bearings designed for precision instruments and micro-mechanical applications. Engineered for smooth operation, low noise, and long service life, these bearings are ideal for devices requiring exceptional accuracy and reliability, such as medical equipment, optical instruments, small motors, and miniature robotics.
Ultra-Compact Design: Minimalist dimensions for space-constrained applications.
High Precision: Tight tolerances ensure consistent performance in sensitive instruments.
Low Friction & Noise: Optimized for smooth, quiet operation.
Durable Construction: High-grade steel or ceramic options for extended lifespan.
Versatile Applications: Suitable for medical devices, drones, watches, and micro-motors.
Inner Diameter (d): 1.5mm
Outer Diameter (D): 4 mm
Width (B): 2 mm
Medical & Dental Tools
Optical & Laser Equipment
Micro Motors & Drones
Watch Mechanisms
Robotics & Miniature Actuators
Shielded (ZZ) or Sealed (RS) variants
Stainless Steel or Hybrid Ceramic Materials
Custom Lubrication & Preload Configurations