-- SKF Authorized Engineering Partner
Ensure smooth, reliable operation for your machine tools with precision-engineered NSK 6219 ZZ Bearings and compatible models (6219, 6220, 6221 ZZ). These deep groove ball bearings deliver consistent performance under heavy loads, reducing downtime and extending equipment lifespan—so you can focus on production, not maintenance.
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Free application analysis · Failure diagnosis · Custom modification guidance. Response within 24 hours.
| Parameter | Details |
|---|---|
| Model Number | DAC35720027, DAC35720028, DAC35720228, DAC35720233/31 |
| Precision Rating | P0, P6, P5 |
| Service | OEM, ODM |
| Trademark | NSK/KOYO/BDL |
| Origin | China |
| HS Code | 8482109000 |
| Industry | Typical Applications |
|---|---|
| Machine Tool | Rotary spindles, feed mechanisms, precision machining components |
| Automotive | Wheel hubs, transmission systems, engine accessories |
Selecting the right deep groove ball bearings for machine tools often leads to frustration—mismatched dimensions causing installation delays, or bearings failing prematurely due to poor precision. With dozens of models like 6219, 6220, and 6221 ZZ in the market, finding the exact fit for your equipment shouldn’t require hours of cross-referencing.
Our NSK 6219, 6220, 6221 ZZ deep groove ball bearings address these challenges through ISO 9001-certified manufacturing processes and strict quality control. As a supplier with access to both international brands like NSK and domestic options, we simplify sourcing by offering multiple model alternatives that meet your machine tool’s dimensional and load requirements. Whether for high-speed spindles or heavy-duty feed drives, these bearings deliver the stability needed for continuous operation.
These deep groove ball bearings excel in machine tool applications where precise radial load handling and minimal friction are critical. Operating within standard temperature ranges, they maintain consistent performance in environments with moderate vibration and varying speeds. The ZZ shield design provides effective protection against contamination, reducing maintenance needs in metalworking settings where coolant and debris are common.
The precision ratings (P0, P6, P5) ensure tight dimensional tolerances, essential for maintaining alignment in precision machining operations. P5 class bearings, for example, minimize runout, which directly impacts the surface finish quality of machined parts. The deep groove geometry allows the bearings to accommodate both radial and axial loads, making them versatile for multi-axis machine tools. Additionally, the choice of trusted brands like NSK ensures material consistency, with raceways and rolling elements hardened to resist wear under cyclic loading.
Investing in correctly specified deep groove ball bearings lowers long-term costs by minimizing unplanned downtime. Bearings with inadequate precision (e.g., P0 when P5 is required) may lead to excessive tool vibration, reducing tool life and increasing scrap rates. In contrast, our bearings’ strict quality control—including dimensional and hardness testing—ensures predictable performance. This reliability translates to fewer replacements, lower maintenance labor, and more consistent production output, ultimately improving your machine tool’s overall efficiency.
Our commitment to quality starts with raw material inspection and continues through finished product testing, including checks for surface hardness, dimension accuracy, and shield integrity. All bearings come with a manufacturer-backed warranty covering manufacturing defects, providing peace of mind for your investment. With access to extensive inventory, we support both small-batch and large-scale orders, ensuring you get the bearings you need when you need them.
Whether you need NSK 6219, 6220, 6221 ZZ or other deep groove ball bearings, provide your required model, quantity, and delivery location, and we’ll promptly share pricing and availability. Our team can also assist with cross-referencing part numbers to ensure compatibility with your machine tool specifications.
Q: Can you supply bearings from other brands besides NSK?
A: Yes, we offer a wide range of brands including KOYO, BDL, and other international and domestic options, supporting multi-brand procurement needs.
Q: How do I confirm if these bearings fit my machine tool?
A: Provide your equipment model or the bearing dimensions (bore diameter, outer diameter, width), and our technical team will verify compatibility with the specified models.
Q: What is the warranty period for these bearings?
A: We provide a standard warranty covering manufacturing defects; specific terms are detailed in the sales contract.
Q: What is the minimum order quantity?
A: We accept low minimum orders, making it feasible for both small maintenance runs and large production requirements.
Q: How quickly can you ship the bearings?
A: In-stock models are shipped within 1-3 business days; shipping time depends on the selected method (courier, air, or sea).
Q: Do you offer custom bearing solutions (OEM/ODM)?
A: Yes, we support OEM/ODM services for specific dimensions, materials, or performance requirements, based on provided drawings or specifications.
Ready to order or need a quote?
Send the bearing model, dimensions (d x D x B), and quantity — we’ll get back to you with pricing and lead time.
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Official partner since 1998 with direct access to SKF technical resources, genuine products, and engineering expertise.
In-house team provides application design, failure analysis, and predictive maintenance -- reducing bearing failures by 35%.
Every product undergoes rigorous pre-shipment inspection with full documentation for traceability and compliance.
Dedicated account managers and reliable delivery networks ensure on-time supply for enterprise clients worldwide.
Performance Metrics
35%
Failures Prevented
70%
Downtime Reduction
25+
Years Experience
24h
Quote Response
78% of large enterprises prefer suppliers offering integrated technical support and lifecycle services.
Custom bearing selection and system design based on your specific load conditions, speeds, temperatures, and environmental factors.
Root-cause investigation of bearing failures using metallurgical testing, vibration analysis, and operating data review.
IIoT-enabled monitoring with smart sensor bearings for real-time vibration, temperature, and RPM tracking.
Modified bearings with special coatings, seals, tolerances, or materials. Lead time 8-12 weeks from official channels.
Certified engineers available for on-site installation support, alignment checks, and commissioning assistance worldwide.
Long-term service agreements including regular maintenance checks, replacement scheduling, and performance reporting.
Free samples available for orders over $50K
Validated against your KPIs before full production commitment.
-- Get In Touch
Our certified engineers will review your application requirements and provide a detailed quote within 24 hours.
Address
No. 377 Bansongyuan Road, Huangpu District, Shanghai, China
Free Sample Program
Orders over $50K qualify for free product samples
Test against your KPIs before full production commitment. Ask our engineers for details.
Regarding: NSK 6219 6220 6221 ZZ Deep Groove Ball Bearings Machine Tool
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