Ningbo Kent Bearing Co., Ltd
| Payment Terms | L/C,D/P,T/T,D/A,Western Union |
| Supply Ability | 30,000,000 pcs per year |
| Delivery Time | Negotiable |
| Packaging Details | Single Packing, Industrial/Tube Packing, Custom Packing |
| Cage Type | Steel |
| Hardness | HRC 58-62 |
| Material | Steel/Stainless Steel/Ceramic |
| Size | 4*1.5*2mm |
| Samples | Available |
| Oem Service | Customization welcomed |
| Material Of Bearing | Bearing Steel or Stainless Steel |
| Row Number | Single |
| Speed Limit | 10000 RPM |
| Weight | 1.25g |
| Brand Name | BUGAO |
| Model Number | 681X |
| Certification | ISO 9001:2015 |
| Place of Origin | Ningbo, China |
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Product Specification
| Payment Terms | L/C,D/P,T/T,D/A,Western Union | Supply Ability | 30,000,000 pcs per year |
| Delivery Time | Negotiable | Packaging Details | Single Packing, Industrial/Tube Packing, Custom Packing |
| Cage Type | Steel | Hardness | HRC 58-62 |
| Material | Steel/Stainless Steel/Ceramic | Size | 4*1.5*2mm |
| Samples | Available | Oem Service | Customization welcomed |
| Material Of Bearing | Bearing Steel or Stainless Steel | Row Number | Single |
| Speed Limit | 10000 RPM | Weight | 1.25g |
| Brand Name | BUGAO | Model Number | 681X |
| Certification | ISO 9001:2015 | Place of Origin | Ningbo, China |
| High Light | 681X miniature bearings for instruments ，precision miniature bearings 681X ，miniature bearings for precision tools | ||
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
Company Details
Business Type:
Manufacturer
Year Established:
2003
Ecer Certification：
Verified Supplier
We are Ningbo Kent Bearing Co., Ltd, one of the leading high-quality bearing manufacturer and supplier, established in 2003. We registered the BUGAO Bearing trademark in 2003 and specialize in deep groove ball bearings for electric motors, automobiles, household appliances, power tools, ... We are Ningbo Kent Bearing Co., Ltd, one of the leading high-quality bearing manufacturer and supplier, established in 2003. We registered the BUGAO Bearing trademark in 2003 and specialize in deep groove ball bearings for electric motors, automobiles, household appliances, power tools, ...
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