WhatsApp
Teams
Email Us : info@sfyh.com

Company profile

Since 2010, Fujian Welink Bearing Technology Co., Ltd. has been a globally trusted leader in precision bearings, specializing in miniature deep-groove ball bearings. Our proprietary brand WELINK delivers premium quality and reliable performance rivaling international famous brands, with unbeatable cost-effectiveness that balances top-tier craftsmanship and competitive pricing. With three strategic R&D and production bases across Ningbo (Zhejiang), Ningde (Fujian), and Anhui, plus over 20,000㎡ advanced workshops, we ensure a comprehensive product range, stable supply, and rigorous quality control. Serving 50+ industries worldwide, Our precision bearings are extensively applied in:

All products

6403 Deep Groove Ball Bearing for Power Transmission Gearboxes | 17×62×17 mm

The 6403 is a Standard Deep Groove Ball Bearing engineered for robust and reliable performance in a wide range of industrial applications. Built with the universal deep groove geometry, this metric bearing is capable of supporting significant radial loads and moderate axial loads from both directions. With a 17mm bore, it is a versatile and fundamental choice for electric motors, gearboxes, power transmission systems, and various industrial machinery requiring dependable load support and smooth operation.

6405 Open Deep Groove Ball Bearing for High-Load Industrial and Automotive Drives | 25×80×21 Mm

The 6405 is a robust Medium Series Deep Groove Ball Bearing in a standard open design, engineered to deliver exceptional radial load capacity and reliable service in demanding power transmission systems. Manufactured without integral seals or shields, this bearing is optimized for applications where it operates within pre-lubricated housings or receives regular external lubrication. With a 25 mm bore, a substantial 80 mm outer diameter, and a 21 mm width, it offers a durable and versatile solution for heavy-duty industrial gearboxes, motors, and axle systems.

6406-2RS Deep Groove Ball Bearing For Heavy-Duty Protection & High Radial Loads | 30×90×23 mm

The 6406-2RS is a Sealed Deep Groove Ball Bearing from the robust 64 series, engineered to handle substantial radial and moderate axial loads while providing built‑in contamination resistance. Its double rubber seals (2RS) effectively retain grease and block dust, moisture, and debris, making it a reliable choice for harsh operating conditions. With a 30 mm bore, 90 mm outer diameter, and 23 mm width, this bearing is widely specified in heavy machinery, industrial gearboxes, pumps, and agricultural equipment where durability and low maintenance are critical.

6407 Deep Groove Ball Bearing For Versatile Industrial Applications & High Speed Performance | 35×100×25 mm

The 6407 is a Standard Open Deep Groove Ball Bearing from the heavy-duty 64 series, engineered to accommodate substantial radial loads and moderate axial loads in both directions. Its open configuration offers maximum design flexibility, allowing engineers to integrate custom sealing solutions or incorporate the bearing into systems with existing lubrication circuits. With a 35 mm bore, 100 mm outer diameter, and 25 mm width, this bearing is a preferred component in industrial gearboxes, electric motors, pumps, and material handling equipment where reliable operation and high speed capability are essential.

6408 Deep Groove Ball Bearing For Higher Load Capacity & Medium-Speed Industrial Drives | 40×110×27 mm

The 6408 is a Standard Open Deep Groove Ball Bearing from the robust 64 series, engineered to deliver increased load carrying capacity for medium to large frame industrial equipment. Its open configuration provides maximum design flexibility, enabling integration with custom sealing arrangements or existing lubrication systems. With a 40 mm bore, 110 mm outer diameter, and 27 mm width, this bearing is widely specified in heavier electric motors, industrial pumps, gearboxes, and processing machinery where reliable performance under substantial loads is required.

6409 Deep Groove Ball Bearing For Higher Load Demands & Extended Service Life | 45×120×29 mm

The 6409 is a Standard Open Deep Groove Ball Bearing from the heavy-duty 64 series, engineered to accommodate substantial radial loads and moderate axial loads in both directions for larger industrial equipment. Its open configuration provides maximum design flexibility, enabling seamless integration with custom sealing arrangements or existing lubrication systems. With a 45 mm bore, 120 mm outer diameter, and 29 mm width, this bearing is commonly specified in larger electric motors, industrial pumps, gearboxes, and processing machinery where reliable performance under increased loads is essential.

6410 Deep Groove Ball Bearing For Medium-Duty Industrial Applications | 50×130×31 Mm

The 6410 is a Single-Row Deep Groove Ball Bearing engineered to deliver consistent performance in medium-duty industrial machinery and drive systems. Utilizing an optimized deep groove raceway geometry, this bearing is designed to handle substantial radial forces and moderate axial loads in both directions. With a 50 mm bore, 130 mm outer diameter, and 31 mm width, it provides a robust cross-section suitable for larger equipment housings requiring higher load capacity. Supplied as an open bearing, it offers maximum flexibility for various mounting arrangements and lubrication methods, making it an ideal choice for applications demanding high radial rigidity.

6411 Deep Groove Ball Bearing For Medium Duty Industrial Applications | 55×140×33 Mm

The 6411 is a Single-Row Deep Groove Ball Bearing engineered to deliver consistent performance in medium-duty industrial machinery and drive systems. Utilizing an optimized deep groove raceway geometry, this bearing is designed to handle substantial radial forces and moderate axial loads in both directions. With a 55 mm bore, 140 mm outer diameter, and 33 mm width, it provides a robust cross-section suitable for larger equipment housings requiring higher load capacity. Supplied as an open bearing, it offers maximum flexibility for various mounting arrangements and lubrication methods, making it an ideal choice for applications demanding high radial rigidity.

6412 Open Single Row Deep Groove Ball Bearing For High-Load Drive Systems | 60×150×35 mm

The 6412 Open is a versatile single-row deep groove ball bearing designed for applications demanding high radial and moderate axial load capacity in both directions. With an open design (no seals or shields), it allows for maximum speed flexibility and is ideal for use in systems where external lubrication or cooling is provided. Featuring a 60 mm bore and a robust 35 mm width, this bearing delivers durable performance in industrial machinery, automotive components, and heavy-duty equipment where reliability and load handling are critical.

6413 Deep Groove Ball Bearing For Heavy-Duty Industrial Applications & High Speed Performance | 65×160×37 Mm

The 6413 is a high-performance open deep groove ball bearing belonging to the heavy-duty 64 series. It is engineered to support substantial radial loads as well as moderate axial forces in both directions. With its open configuration, it offers maximum design flexibility, allowing engineers to incorporate custom sealing arrangements or to integrate the bearing into systems with existing lubrication circuits. Featuring a 65 mm bore, 160 mm outer diameter, and 37 mm width, this bearing is widely used in industrial gearboxes, electric motors, pumps, and material handling equipment where reliable operation and high-speed capability are critical.

6414 Deep Groove Ball Bearing Heavy Duty Series for Large Machinery | 70×180×42 mm

The 6414 open deep groove ball bearing is part of the heavy-duty 64 series, specifically designed to support high radial loads and bidirectional axial forces in large rotating equipment. Its open configuration provides engineers with the freedom to incorporate custom sealing systems or integrate the bearing into centralized lubrication circuits. With a 70 mm bore, 180 mm outer diameter, and 42 mm width, this bearing is widely specified for heavy industrial gearboxes, large electric motors, pumps, and material handling systems where durability and high-speed performance are required.

6416 Open Type Deep Groove Ball Bearing Heavy-Duty Industrial Grade | 80×200×48 mm

The 6416 Open is a Single Row Deep Groove Ball Bearing engineered for high radial load capacity and durable performance in demanding industrial environments. Featuring a classic open design (No shields or seals), this model allows for maximum flexibility in lubrication methods, making it ideal for applications requiring high-speed operation or specific grease maintenance schedules. With a substantial 80mm bore and robust 48mm width, the 6416 is built to deliver reliable service in heavy machinery, industrial gearboxes, and large electric motors.

6417 Deep Groove Ball Bearing Heavy-Duty Industrial Series For Durable Performance | 85×210×52 mm

The 6417 Open is a Single Row Deep Groove Ball Bearing engineered for high radial load capacity and durable performance in demanding industrial environments. With a substantial 85mm bore and robust 52mm width, the 6417 is built to deliver reliable service in heavy machinery, industrial gearboxes, and large electric motors. Featuring a classic open design (No shields or seals), this model allows for maximum flexibility in lubrication methods, making it ideal for applications requiring high-speed operation or specific grease maintenance schedules.

6418 Deep Groove Ball Bearing Heavy Duty Design for Industrial Motors and Pumps | 90×225×54 mm

The 6418 is a single-row deep groove ball bearing with an open design, engineered for heavy-duty industrial applications requiring high load capacity and reliable performance. Featuring a 90 mm bore, 225 mm outer diameter, and 54 mm width, this bearing accommodates substantial radial loads as well as bidirectional axial loads. Its open configuration allows for easy relubrication, making it ideal for high-speed operations, elevated temperatures, or environments where maintenance intervals require periodic lubrication. Manufactured from premium chrome steel, the 6418 ensures long service life under demanding conditions.

6420 Open Deep Groove Ball Bearing For Heavy-Duty Industrial Applications | 100×250×58 mm

The 6420 Open is a standard single-row deep groove ball bearing engineered for demanding industrial environments. With a 100 mm bore, 250 mm outer diameter, and 58 mm width, this open-type bearing delivers robust radial and axial load capacity. It is widely used in heavy electric motors, large pumps, compressors, and industrial gearboxes where reliable performance and long service life are essential. The open configuration allows for flexible lubrication methods, making it suitable for both oil bath and grease systems.

6422 Open Deep Groove Ball Bearing For Heavy Industrial Machinery | 110×280×65 mm

The 6422 Open is a heavy-duty single-row deep groove ball bearing engineered for large-scale industrial equipment requiring high load capacity and reliable operation. With a 110 mm bore, 280 mm outer diameter, and 65 mm width, this open-type bearing delivers exceptional radial and axial load support. It is commonly specified for large electric motors, industrial pumps, compressors, and mining equipment where durability and performance under continuous operation are critical. The open configuration accommodates various lubrication methods including oil bath, circulating oil, or grease systems.

6426-2RS Double Sealed Deep Groove Ball Bearing For Heavy Industrial Equipment | 130×340×78 mm

The 6426-2RS is a heavy-duty single-row deep groove ball bearing engineered for demanding industrial applications requiring enhanced contamination protection. With a 130 mm bore, 340 mm outer diameter, and 78 mm width, this large-format bearing delivers substantial radial and axial load capacity. Featuring double rubber seals (2RS) on both sides, it provides effective protection against dust, moisture, and particulate contamination while retaining lubricant for extended maintenance intervals. This bearing is commonly specified for heavy electric motors, large pumps, compressors, mining equipment, and industrial gearboxes operating in challenging environments .

6404 Deep Groove Ball Bearing For Electric Motors & Industrial Machinery | 20×72×19 mm

The 6404 is a Single Row Deep Groove Ball Bearing designed for dependable performance in a wide spectrum of industrial and mechanical applications. Featuring a deep groove raceway geometry, this bearing efficiently accommodates radial loads as well as moderate axial loads in both directions. With a 20 mm bore, 72 mm outer diameter, and a 19 mm width, it provides a robust and versatile solution for various machinery. Available with different sealing options (open, metal shields, or rubber seals), it is ideal for electric motors, pumps, gearboxes, fans, and other equipment requiring smooth, low‑noise operation and long service life.

6404-2RS Deep Groove Ball Bearing For Industrial Applications | 20×72×19 mm

The 6404-2RS is a Single Row Deep Groove Ball Bearing with Contact Rubber Seals engineered for reliable performance in demanding industrial environments. With a 20 mm bore, 72 mm outer diameter, and a 19 mm width, it provides a robust and versatile solution for various machinery applications. Featuring the standard deep groove raceway geometry, this bearing efficiently accommodates radial loads as well as moderate axial loads in both directions. Equipped with double rubber seals (2RS) for effective contamination protection and lubricant retention, it is ideally suited for electric motors, pumps, agricultural equipment, and industrial machinery operating in dusty or moist conditions where maintenance access is limited.

Showing 1 to 1 of 1 (1 Pages)

click here to leave a message
leave a message
If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.