61821 Deep Groove Ball Bearing Long-Lived High Quality

Product Specifications

Application Suitability

Tired of Bearing Failures? The 61821 Deep Groove Ball Bearing Delivers Long-Lasting Performance

Finding a reliable deep groove ball bearing that matches your equipment’s exact specifications can feel like searching for a needle in a haystack. Many buyers struggle with mismatched dimensions leading to installation delays, or worse, premature wear from low-quality materials that cause unexpected downtime. Sourcing from multiple suppliers just to compare brands and lead times only adds to the frustration.

Built for Reliable, Long-Term Performance

The 61821 deep groove ball bearing addresses these challenges with its precision engineering and versatile design. Manufactured to international standards, this bearing features a single row configuration and radial load capacity, making it suitable for a wide range of industrial applications. Our ISO 9001 certified processes ensure consistent quality, from raw material inspection to final dimensional testing. With access to both international brands like NTN and domestic manufacturers, we can supply this exact model or help you find compatible alternatives—all from a single source with现货库存 (ready stock) for quick delivery.

Where This Bearing Performs Best

This 61821 bearing excels in moderate-speed rotational applications with radial loads, such as electric motor shafts, gearboxes, and textile machinery. Its 0° contact angle optimizes radial load distribution, while the 105mm bore diameter and 130mm outer diameter fit standard industrial mounting configurations. The 13mm width strikes a balance between load capacity and space efficiency, making it ideal for compact equipment where every millimeter counts.

Engineering Details That Matter

The choice of bearing steel as the primary material ensures high surface hardness and wear resistance, critical for withstanding continuous operation. Unlike softer alloys, bearing steel maintains dimensional stability under varying temperatures, reducing the risk of seizure or deformation. The deep groove design allows for efficient lubricant retention, minimizing friction and extending service life. Precision manufacturing tolerances guarantee interchangeability with major international standards, so you can replace existing bearings without reworking housing or shafts. For applications requiring reduced maintenance, the 61821TN1 variant offers a rubber seal to prevent contamination—ideal for dusty or humid environments.

Why Bearing Selection Affects Total Cost

Choosing the right deep groove ball bearing isn’t just about upfront cost—it’s about avoiding hidden expenses. A bearing with subpar material hardness may wear prematurely, leading to equipment vibration, noise, and eventual failure. This can cause production downtime, repair labor costs, and even damage to adjacent components. The 61821 bearing’s robust construction and quality testing help mitigate these risks, aligning with ISO 281 life calculation principles to ensure predictable performance. By investing in a high-quality bearing, you reduce the total cost of ownership over its operational lifetime.

Quality You Can Rely On

Packaging & Shipping

• Standard industrial packaging to prevent damage during transit
• 现货库存 available for immediate dispatch
• Multiple shipping options: express courier, air freight, or sea freight
• Low minimum order quantity, supporting both small repairs and large-scale production

Request a Quote for the 61821 Deep Groove Ball Bearing

Ready to secure reliable bearings for your equipment? Provide us with the model number, required quantity, and delivery location, and we’ll promptly send you a competitive quote. Need help confirming compatibility with your application? Share your equipment details, and our technical team will assist in verifying the specifications. With our extensive brand coverage and现货库存, we can fulfill your order quickly—so you can minimize downtime and keep operations running smoothly.

Frequently Asked Questions