Ningbo Kent Bearing Co., Ltd
| Payment Terms | L/C,D/A,D/P,T/T,Western Union |
| Supply Ability | 30,000,000 pcs per year |
| Delivery Time | Negotiable |
| Packaging Details | Single Packing, Industrial/Tube Packing, Custom Packing |
| Oem Service | Customization Welcomed |
| Bearing Material | Chrome Steel |
| Cage Type | Steel |
| Bearing Life | Up to 10 years |
| Size | Standard |
| Samples | Available |
| Stock | Rich |
| Brand Name | BUGAO |
| Model Number | 623 Z |
| Certification | ISO 9001:2015 |
| Place of Origin | Ningbo, China |
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Product Specification
| Payment Terms | L/C,D/A,D/P,T/T,Western Union | Supply Ability | 30,000,000 pcs per year |
| Delivery Time | Negotiable | Packaging Details | Single Packing, Industrial/Tube Packing, Custom Packing |
| Oem Service | Customization Welcomed | Bearing Material | Chrome Steel |
| Cage Type | Steel | Bearing Life | Up to 10 years |
| Size | Standard | Samples | Available |
| Stock | Rich | Brand Name | BUGAO |
| Model Number | 623 Z | Certification | ISO 9001:2015 |
| Place of Origin | Ningbo, China | ||
| High Light | 623 Z micro motor bearing ，miniature bearing factory price ，micro motor bearing with warranty | ||
The 623 Micro Motor Bearing is a miniature deep groove ball bearing designed for high-speed, low-noise applications in micro motors and precision instruments. With a compact 3x10x4mm (IDxODxW) size, this bearing ensures smooth rotation, minimal friction, and long service life in small electromechanical systems.
Manufactured with high-carbon chromium steel (GCr15) and available with ZZ shields or open design, it provides reliable performance in motors, drones, medical devices, and small appliances. The factory-direct pricing makes it a cost-effective solution for bulk OEM purchases.
| Parameter | Details |
|---|---|
| Model | 623 |
| Type | Deep Groove Ball Bearing |
| Inner Diameter (ID) | 3 mm |
| Outer Diameter (OD) | 10 mm |
| Width (W) | 4 mm |
| Material | Chrome Steel (GCr15) / Stainless Steel (SUS440C) |
| Shield Type | ZZ (Double Metal Shield) / Open |
| Cage Material | Steel / Nylon (Optional) |
| Precision Grade | ABEC-1 (Standard), ABEC-3 & ABEC-5 (High Precision) |
| Max Speed | 50,000 RPM (Grease Lubrication) |
| Load Capacity | Dynamic: 1.3 kN, Static: 0.6 kN |
| Temperature Range | -30°C to +120°C (Higher with specialty grease) |
| Lubrication | Pre-lubricated (Standard Grease / Oil) |
✔ Ultra-Compact Size (3x10x4mm) – Ideal for micro motor applications.
✔ Low Noise & Vibration – Ensures quiet operation in sensitive devices.
✔ High-Speed Capable – Supports up to 50,000 RPM with proper lubrication.
✔ Long Lifespan – Precision grinding reduces wear and friction.
✔ Factory Direct Price – Competitive cost for bulk orders.
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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