I just want to say a massive thanks to Welink team. We had a really tight deadline for a prototype requiring specific deep groove ball bearings, and they were brilliant. They understood our needs immediately, rushed samples over, and followed up to ensure perfect performance. It's that attentive service that sets them apart. They've been a great help, and we're already looking forward to our next project together. Highly recommended.
Vietnam's industrial pump market is growing rapidly. From sludge pumps in construction sites to slurry pumps in mining and wastewater treatment, pumps are everywhere. And where there are pumps, there are bearings – especially replacement bearings.
For pump distributors in Vietnam, stocking bearings can be a challenge. Stock too many models, and you tie up capital. Stock too few, and you lose customers to competitors who have what they need.
So the question is: Which bearing models should every pump distributor stock in Vietnam?
Based on real market demand, repair shop feedback, and years of supply experience, specific core bearing models stand out as the "must-stock" list for any pump distributor in Vietnam.
Core Must-Stock Bearing Models (By Priority)
★★★★★ Priority 1: Household & Small Clean Water Pumps
These models experience the highest turnover, covering rural homes, apartments, and small booster pumps.Delivering stable profit margins, these bearings are essential for factories, farms, and water supply stations.
| Model | Size (ID×OD×W) | Power Range | Application | Stock Advice |
| 6203-2RS | 17×40×12mm | 1.5–3kW | Household pumps, small submersible pumps, booster pumps | Highest inventory – never run out |
| 6204-2RS | 20×47×14mm | 3–5.5kW | Pipeline pumps, horizontal centrifugal pumps, floor booster pumps | Core model – second highest stock |
★★★★ Priority 2: Industrial & Agricultural Irrigation Pumps
Delivering stable profit margins, these bearings are essential for factories, farms, and water supply stations.
| Model | Size (ID×OD×W) | Power Range | Application | Stock Advice |
| 6205-2RS | 25×52×15mm | 5.5–11kW | Industrial pumps, circulating pumps, IS/IR centrifugal pumps, irrigation pumps | KING MODEL – highest profit, largest stock |
| 6206-2RS | 30×62×16mm | 11–18.5kW | Medium-large flow pumps, multi-stage pumps, industrial water supply | Regular stock – keep sufficient |
★★★ Priority 3: Heavy-Duty, High-Head & Mild Slurry Pumps
These offer a high margin and cover demanding applications like mines, construction sites, and sewage stations.
| Model | Size (ID×OD×W) | Power Range | Application | Stock Advice |
| 6305-2RS | 25×62×17mm | 5.5–15kW | Heavy-duty pumps, high-head pumps, mild slurry pumps | Moderate stock – good premium |
| 6306-2RS | 30×72×19mm | 15–22kW | Multi-stage pumps, heavy industrial pumps, large mines | Low stock – serve key customers |
★★ Priority 4: Micro & Ultra-Thin Positioning
While niche, these models are necessary to complete your product range and differentiate from competitors.
| Model | Size (ID×OD×W) | Power Range | Application | Stock Advice |
| 6202-2RS | 15×35×11mm | 0.75–1.5kW | Micro pumps, mini submersible pumps, garden/fish tank pumps | Low stock – diversify your range |
| 6004-2RS | 20×42×12mm | - | Ultra-thin pump bodies, imported small pumps | Low stock – differentiate from competitors |
One Critical Decision: 2RS vs. ZZ
For pump applications in Vietnam, the 2RS (rubber seal) is almost always the better choice. Pumps operate in wet, dirty, dusty environments. Rubber-sealed bearings keep contaminants out and grease in. Metal-shielded bearings (ZZ) are designed for clean, dry applications – not pumps.
| Feature | 2RS (Rubber Seal) | ZZ (Metal Shield) |
| Dust resistance | Excellent | Moderate |
| Water/sludge resistance | Good | Poor |
| Grease retention | Good | Poor |
| Suitable for pump environment | ✅ Yes | ❌ Not recommended |
Recommendation: Stock 2RS versions of all models. If a customer insists on ZZ, you can order it, but 2RS should be your default.
How Many Should You Stock?
This depends on your sales volume, but here is a conservative starting point for a small to medium pump distributor in Vietnam:
| Model | Minimum Stock | Recommended Stock |
| 6205-2RS | 200 pcs | 500+ pcs |
| 6206-2RS | 150 pcs | 300+ pcs |
| 6305-2RS | 100 pcs | 200+ pcs |
| 6306-2RS | 80 pcs | 150+ pcs |
| 6207-2RS | 50 pcs | 100+ pcs |
Adjust based on your actual monthly sales. The goal is to never run out of 6205 and 6206, these are your bread and butter.
Expanding Beyond the Core
Once you have the core models in stock, consider adding:
• 6307, 6308: For larger pumps (less frequent but good margin).
• 222 and 223 series spherical roller bearings: For heavy-duty slurry pumps.
• 68/69 series micro bearings: For small pumps and specialty equipment.
But always build from the foundation. The models listed above are the safest, most profitable place to start.
Final Advice for Pump Distributors in Vietnam
• Focus on 2RS: It is the right seal for the local environment.
• Maintain core stock: Never run out of 6205 and 6206 – they are your fastest-moving items.
• Work with a reliable supplier: Choose one who has stock ready to ship within days.
• Test samples before bulk stocking: Quality consistency matters.
Need a Reliable Bearing Supplier?
At Welink Bearing, we are a China-based bearing manufacturer with a direct factory in Ningbo. We stock all 62/63 series models listed above in 2RS rubber seal, ready to ship within 7 days.
We also offer:
• Free samples for testing
• Custom packaging (your brand)
• Competitive distributor pricing
If you are a pump distributor in Vietnam looking to build a profitable bearing stock, contact us for a wholesale price list and sample support.
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