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Experience smoother, quieter operation in your high-speed applications with the 61905nr Deep Groove Ball Bearing—designed to reduce friction and minimize noise for seamless performance. This precision-engineered bearing handles radial loads effortlessly, thanks to its single-row design and 0° contact angle, ensuring reliable power transmission even under demanding conditions.
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| Parameter | Details |
|---|---|
| Model Number | 6208 |
| Bearing Type | Deep Groove Ball Bearing |
| Seals Type | Zz, 2RS, Open |
| Lubrication | Grease or Oil |
| Precision Rating | P0, P6, P5, P4 |
| Vibration | Z1V1, Z2V2, Z3V3 |
| Material | Bearing Steel |
| Contact Angle | 0° |
| Specification (d x D x B) | 40mm x 80mm x 18mm |
| Load Direction | Radial Bearing |
| Rows Number | Single |
| Separated | Unseparated |
| Aligning | Non-Aligning Bearing |
| Service | OEM, ODM |
| Industry | Typical Applications |
|---|---|
| Automotive | Wheel hubs, transmissions, electric motors |
| Industrial Machinery | Conveyor systems, pumps, gearboxes |
| Automation Equipment | Robotic arms, precision spindles |
| Hydraulic Systems | Hydraulic pumps, cylinder actuators |
Choosing the right deep groove ball bearing can be frustrating when faced with mismatched dimensions, unclear quality standards, or limited brand options. Many buyers experience unexpected downtime due to premature bearing failure caused by poor material quality or incorrect precision ratings. Sourcing from multiple suppliers to compare specifications only adds to the complexity.
The 61905nr 61905-Zn deep groove ball bearing addresses these challenges with its robust design optimized for high-speed applications and minimal noise output. Our ISO 9001-certified supply chain ensures consistent quality across all production stages, from raw material inspection to final dimensional testing. Whether you need the standard 6208 model or custom specifications, our extensive inventory of both domestic and international brands (including Koyo) allows for one-stop procurement, reducing lead times and simplifying your supply chain.
This deep groove ball bearing excels in radial load applications operating at moderate to high speeds, such as electric motor shafts and precision spindles. With a contact angle of 0°, it efficiently handles pure radial loads while maintaining stable rotation. The bearing’s vibration class options (Z1V1 to Z3V3) allow customization based on noise sensitivity—critical for applications like medical equipment or consumer appliances where quiet operation is essential.
The bearing’s performance is shaped by several critical specifications. The precision rating (P0 to P4) directly affects rotational accuracy: P4 class is ideal for machine tools requiring tight tolerances, while P0 suits general industrial use. Sealing options (Zz, 2RS, Open) provide flexibility—2RS seals offer enhanced contamination protection for dusty environments, while Open designs reduce friction in oil-lubricated systems. Constructed from high-grade bearing steel, the component delivers excellent hardness and wear resistance, ensuring longer service life compared to lower-quality alternatives. The 40mm x 80mm x 18mm dimension set follows international standards, ensuring interchangeability with most major brands.
Selecting the correct deep groove ball bearing directly impacts your equipment’s total cost of ownership. A bearing with inadequate precision (e.g., P0 in a high-speed spindle) may cause excessive vibration, leading to premature wear of adjacent components and unplanned maintenance. Similarly, using low-quality steel can result in early fatigue failure, disrupting production schedules. Our bearings undergo rigorous testing for hardness, dimensional accuracy, and surface finish, aligning with ISO standards to minimize these risks. By investing in a reliable component, you reduce long-term costs associated with replacements and downtime.
Our commitment to quality is backed by tangible processes: all bearings follow ISO 9001-certified production and inspection protocols. Raw materials are tested for chemical composition and mechanical properties before manufacturing. Finished products undergo dimensional checks (including bore diameter, outer diameter, and width) and hardness testing to ensure compliance with specifications. We provide a warranty against manufacturing defects, with clear terms outlined in each order. For customers requiring specific brands or custom designs, our OEM/ODM capabilities allow production to your exact specifications, supported by comprehensive documentation.
Whether you need the 6208 model or a custom variant of the 61905nr/61905-Zn deep groove ball bearing, provide your required specifications—including seals type, precision class, and quantity—and we’ll deliver a competitive quote with lead time. Our team can also assist with cross-referencing part numbers from other brands to ensure compatibility with your equipment.
Q: Can you source other bearing brands or models?
A: Yes, we support procurement of all major international and domestic brands, as well as custom models. Provide the brand, model, or dimensions, and we’ll facilitate sourcing.
Q: How do I confirm if this bearing fits my equipment?
A: Share your equipment’s bearing requirements (dimensions, load capacity, speed) or existing part number, and our technical team will verify compatibility.
Q: What is your warranty policy?
A: We offer a warranty against manufacturing defects. Specific terms, including duration, are detailed in each sales contract.
Q: What is the minimum order quantity?
A: We accept low minimum orders, including small quantities for testing or maintenance needs.
Q: How quickly can you ship?
A: In-stock bearings are shipped within 1-2 business days. For custom orders, lead time depends on specifications and will be confirmed in your quote.
Q: Do you offer OEM/ODM services?
A: Yes, we provide OEM/ODM manufacturing for custom bearing designs, including branding, materials, and specifications tailored to your requirements.
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.
Contact us via email or phone for further assistance.
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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.
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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: 61905nr 61905-Zn Deep Groove Ball Bearing High Speed Low Noise
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