30BD5223 3306-2Z AC Compressor Bearing – High-Load, Long-Life Auto Bearing
Basic Info
| Inner Diameter | 40 mm |
| Outer Diameter | 62 mm |
| Thickness | 24 mm |
| Type | Double Row Radial Bearing |
| Material | Bearing Steel |
| Application | Automobile Air Conditioning Compressor |
Introduction
High-precision, low-noise radial bearing for automotive AC compressors. Features long life, high-speed capability, and compatibility with grease or oil lubrication. Available in precision grades P0–P2 and rich stock. Made in China, branded NSK.
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Description
Key Specifications & Benefits
| Description | Value |
|---|---|
| Model Numbers | 30BD5223, 3306-2Z, 30BD6227, 32BD4718 |
| Design Type | Double-row radial deep groove ball bearing |
| Dimensions (mm) | 40 × 62 × 24 |
| Material | High-purity bearing steel (equivalent to SKF standard) |
| Precision Grade | P0 / P6 / P5 (ISO tolerance classes) |
| Lubrication | Pre-greased or oil-lubricated (low-friction, high-speed compatible) |
| Key Applications | Nissan, Ford, Mazda, Forland A/C compressors; automotive HVAC systems |
| Performance Highlights | Low noise, high-speed stability, extended service life (>50,000 km under OEM conditions) |
| Quality Assurance | 100% dimensional inspection, vibration testing, ISO 9001 certified production |
| SKF-Compatible Advantage | Direct interchange with SKF 3306-2RS/2Z — same load rating, sealing, and fit |
Engineered for reliability in demanding automotive air conditioning compressors, this bearing delivers OEM-level performance at competitive trade pricing. Its double-row radial design ensures superior load distribution and shock resistance — critical for stop-start cycling in modern vehicles. Precision-ground raceways and optimized internal clearance minimize heat buildup and wear, while low-noise cages meet strict Tier-1 supplier acoustic requirements.
Unlike generic alternatives, our bearings undergo full functional validation against NSK and SKF reference specs — including torque consistency, seal integrity, and thermal endurance up to 120°C. Stocked in bulk (1M+ units), ready for fast dispatch worldwide via sea or air.
Frequently Asked Questions:
Q: Is this bearing sealed? A: Yes — 2Z = double metal shields (non-contact, low-torque).
Q: Can it replace SKF 3306-2Z? A: Yes — identical dimensions, load ratings, and ABEC/P0 precision.
Q: What’s the max speed? A: 12,000 rpm (grease-lubricated, ambient 25°C).
