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

6906-2RS Sealed Industrial Deep Groove Ball Bearing For Conveyors | 30×47×9 Mm

The 6906-2RS is a Versatile Sealed Deep Groove Ball Bearing designed for a wide range of industrial applications where protection from contamination and reliable performance are essential. Fitted with double rubber contact seals (2RS) on both sides, this bearing provides effective defense against dust, moisture, and other pollutants while retaining lubrication. With a 30 mm bore and compact 47×9 mm cross-section, it offers an excellent balance of load capacity, sealing integrity, and space efficiency for motors, conveyors, and general machinery.

686 ZZ Miniature Deep Groove Ball Bearing for Compact Drive Systems | 6×13×5 Mm

The 686-ZZ is a High-Performance Miniature Deep Groove Ball Bearing developed for precision applications demanding reliable operation within a slim profile. Featuring dual metal shields (ZZ) on both sides, this bearing offers advanced protection against airborne particles and debris while ensuring smooth, low-torque rotation. With a 6 mm bore and a compact 5 mm width, it is engineered for small motors, compact fans, and electromechanical devices where space efficiency and contamination resistance are essential.

688 ZZ Miniature Deep Groove Ball Bearing for Small Motors and Compact Mechanisms | 8×16×5 Mm

The 688-ZZ is a Reliable Miniature Deep Groove Ball Bearing designed for applications that require a balance of compact cross-section, contamination protection, and smooth operation. Equipped with double metal shields (ZZ), it offers effective two-side defense against dust and debris while maintaining low rotational torque. With an 8 mm bore and a slim 5 mm width, this bearing is particularly suited for small electric motors, compact fans, and precision mechanisms where radial space is limited and environmental protection is valued.

696 ZZ Miniature Deep Groove Ball Bearing for Precision Small Motors | 6×15×5 Mm

The 696-ZZ is a Compact and Robust Miniature Deep Groove Ball Bearing engineered for applications that demand reliable performance in a space-saving design. Featuring double steel shields (ZZ), it ensures excellent protection against dust and particulate intrusion while maintaining smooth, low-torque operation. With a 6 mm bore, 15 mm outer diameter, and a slim 5 mm width, this bearing is ideally suited for small electric motors, compact drives, and precision mechanisms where a balance of radial capacity and contamination resistance is required.

698 ZZ Miniature Deep Groove Ball Bearing for Reliable Small Industrial Drives | 8×19×6 Mm

The 698-ZZ is a Durable Miniature Deep Groove Ball Bearing designed for applications that require a robust yet compact bearing solution with built-in contamination resistance. Featuring double steel shields (ZZ), it provides effective two-side sealing against dust and airborne particles while ensuring smooth, low-friction performance. With an 8 mm bore, 19 mm outer diameter, and a 6 mm width, this bearing is well-suited for small industrial motors, geared mechanisms, and electromechanical devices where reliable operation in varied environments is essential.

699-2RS Sealed Deep Groove Ball Bearing for Precision Miniature Mechanisms | 9×20×6 Mm

The 699-2RS is a Double Rubber-Sealed Miniature Deep Groove Ball Bearing designed for compact, high-reliability applications where protection against moisture and fine contaminants is essential. With two rubber contact seals (2RS) on both sides, this bearing provides superior sealing performance, retaining lubrication and preventing ingress of dust, dirt, and fluids. Featuring a 9mm bore and an ultra-light cross-section, it is ideal for sensitive precision instruments, small motors, and devices operating in challenging environments where space is limited and cleanliness is critical.

6000-ZZ Shielded Deep Groove Ball Bearing for Durable Fans and Industrial Components | 10×25×8 Mm

The 6000-ZZ is a Double Steel Shielded Deep Groove Ball Bearing designed for applications requiring reliable operation, effective contamination protection, and smooth performance in compact mechanical assemblies. Equipped with steel shields on both sides (ZZ), this bearing offers dependable defense against dust and particles while maintaining low rotational torque and preserving internal lubrication. With a 10 mm bore, it serves as a critical component in small industrial drives, fans, and precision mechanisms where space efficiency and consistent shielding are essential for long-term operation.

6001-2RS Double Rubber-Sealed Deep Groove Ball Bearing for Electric Motors and Industrial Appliances | 12×28×8 Mm

The 6001-2RS is a Double Rubber-Sealed Deep Groove Ball Bearing built to deliver reliable, long-lasting performance in environments where protection against moisture, dust, and contaminants is critical. Fitted with two rubber contact seals (2RS) on both sides, this bearing ensures effective sealing to retain lubrication and prevent ingress of fine particles or fluids. Featuring a 12 mm bore, it is an ideal choice for electric motors, appliances, and general industrial machinery where space constraints, environmental protection, and smooth operation are essential design considerations.

6002-ZZ Shielded Deep Groove Ball Bearing for Industrial Motors and Gear Drives | 15×32×9 Mm

The 6002-ZZ is a Double Steel Shielded Light Series Deep Groove Ball Bearing designed for robust performance in a variety of mechanical applications. Featuring steel shields (ZZ) on both sides, it provides reliable defense against dust and particulate contamination while maintaining internal lubrication and low operating torque. With a 15 mm bore and a light series cross-section, this bearing is well-suited for medium-duty electric motors, power transmission units, and industrial machinery where dependable operation in typical workshop or factory environments is required.

6003-2RS Sealed Deep Groove Ball Bearing for Medium-Duty Industrial Motors and Automotive Accessories | 17×35×10 Mm

The 6003-2RS is a Double Rubber-Sealed Medium Series Deep Groove Ball Bearing engineered for durability and reliable performance in environments requiring protection against moisture, dust, and contaminants. Fitted with two rubber contact seals (2RS) on both sides, it ensures effective sealing to retain lubrication and prevent the ingress of particles or fluids. With a 17 mm bore and a medium cross-section, this bearing is well-suited for electric motors, automotive components, and industrial machinery where robust sealing and consistent operation are essential.

6004-ZZ Shielded Deep Groove Ball Bearing For High-Speed Industrial & Automotive Applications | 20×42×12 Mm

The 6004-ZZ is a Double Metal-Shielded Medium Series Deep Groove Ball Bearing designed for reliable high-speed operation in clean to moderately contaminated environments. Equipped with two non-contact steel shields (ZZ) on both sides, it provides effective protection against dust and debris while maintaining low friction and enabling high rotational speeds. With a 20 mm bore and a robust medium cross-section, this bearing is ideal for electric motors, automotive accessories, pumps, and industrial machinery where speed, durability, and contamination resistance are key.

6005-ZZ Shielded Deep Groove Ball Bearing for Robust Industrial Drives & Automotive Systems | 25×47×12 Mm

The 6005-ZZ is a Double Metal-Shielded Medium Series Deep Groove Ball Bearing built for reliable operation in demanding industrial and automotive environments. Fitted with two non-contact steel shields (ZZ) on both sides, it delivers effective protection against dust and debris while maintaining low friction for smooth, high-speed performance. With a 25 mm bore and a sturdy cross-section, this bearing is well-suited for motors, gearboxes, pumps, and machinery where contamination resistance and consistent operation are essential.

6006-2RS Sealed Deep Groove Ball Bearing for Demanding Industrial & Automotive Applications | 30×55×13 Mm

The 6006-2RS is a Double Rubber-Sealed Medium Series Deep Groove Ball Bearing designed to deliver reliable, long-lasting performance in harsh operating conditions. Equipped with two rubber contact seals (2RS) on both sides, it provides superior protection against moisture, dust, and contaminants, effectively retaining lubrication and preventing premature wear. With a 30 mm bore and a robust medium cross-section, this bearing is well-suited for electric motors, automotive systems, pumps, and industrial machinery operating in wet or dirty environments.

6007-2RS Sealed Deep Groove Ball Bearing for Robust Industrial & Heavy-Duty Applications | 35×62×14 Mm

The 6007-2RS is a Double Rubber-Sealed Medium Series Deep Groove Ball Bearing engineered for dependable operation in demanding environments. Fitted with two integral rubber contact seals (2RS) on both sides, it provides enhanced protection against moisture, dust, and contaminants, ensuring long-lasting lubrication and reduced maintenance needs. With a 35 mm bore and a sturdy cross-section, this bearing is ideal for industrial motors, automotive systems, and machinery operating under harsh or wet conditions.

6200-2RZ Sealed Deep Groove Ball Bearing for Compact Industrial & Small Motor Applications | 10×30×9 Mm

The 6200-2RZ is a Double Rubber-Sealed Light Series Deep Groove Ball Bearing designed for reliable performance in compact and space-constrained applications. Equipped with two low-friction rubber contact seals (2RZ) on both sides, it provides effective protection against dust and light moisture ingress while maintaining smooth operation. With a 10 mm bore and a slim cross-section, this bearing is ideal for small electric motors, light-duty drives, and precision instruments where space saving and contamination protection are essential.

6201-2RS Sealed Deep Groove Ball Bearing for Small Motors and Precision Applications | 12×32×10 Mm

The 6201-2RS is a Double Rubber-Sealed Light Series Deep Groove Ball Bearing engineered for durability and smooth operation in environments where protection against contaminants is essential. Fitted with two rubber contact seals (2RS) on both sides, it effectively prevents the entry of dust, moisture, and other particles while retaining lubrication. With a 12 mm bore and a compact cross-section, this bearing is well-suited for small electric motors, automotive accessories, and light industrial equipment requiring reliable sealing and consistent performance.

6901-2RS Sealed Ultra-Thin Deep Groove Ball Bearing for Compact & Lightweight Applications | 12×24×6 Mm

The 6901-2RS is a Double Rubber-Sealed Ultra-Thin Section Deep Groove Ball Bearing designed for space-sensitive applications requiring reliable sealing and low-profile design. Equipped with two rubber contact seals (2RS), it effectively shields against dust, moisture, and contaminants while retaining grease for extended service. Featuring a 12 mm bore and an exceptionally slim 6 mm width, this bearing is ideal for small motors, precision instruments, and compact mechanisms where axial space is limited.

6902-ZZ Shielded Ultra-Thin Deep Groove Ball Bearing for High-Speed Compact Mechanisms | 15×28×7 Mm

The 6902-ZZ is a Double Metal-Shielded Ultra-Thin Series Deep Groove Ball Bearing engineered for applications demanding a slim profile, high rotational speeds, and effective dust protection. Featuring two non-contact steel shields (ZZ) on both sides, it guards against dry contaminants while minimizing friction and heat generation. With a 15 mm bore and an exceptionally low 7 mm cross-section, this bearing is perfectly suited for small motors, precision spindles, and space-constrained devices where reliable high-speed performance is essential.

6903-2RS Sealed Ultra-Thin Deep Groove Ball Bearing | 17x30x7 mm for Compact Applications

The 6903-2RS is a Double Rubber-Sealed Ultra-Thin Series Deep Groove Ball Bearing designed for applications where space constraints and environmental protection are equally critical. Equipped with two effective rubber contact seals (2RS), it provides reliable defense against dust, moisture, and fine contaminants while retaining lubrication. Featuring a 17 mm bore and a slim 7 mm width, this bearing is an excellent choice for compact motors, precision instruments, and small mechanisms operating in potentially contaminated or humid conditions.

6904-2RS Sealed Ultra-Thin Deep Groove Ball Bearing for Precision Compact Mechanisms | 20×37×9 Mm

The 6904-2RS is a Double Rubber-Sealed Ultra-Thin Deep Groove Ball Bearing engineered for applications requiring a slender profile along with reliable contamination protection. Fitted with two rubber contact seals (2RS) on both sides, it effectively shields against dust, moisture, and fine particles while maintaining internal lubrication. With a 20 mm bore and a slim 9 mm width, this bearing offers an ideal solution for compact motors, precision equipment, and small devices where space savings and environmental sealing are essential.

6905-2RS Sealed Ultra-Thin Deep Groove Ball Bearing | 25x42x9 mm for General Industrial Use

The 6905-2RS is a Double Rubber-Sealed Ultra-Thin Series Deep Groove Ball Bearing designed to deliver reliable performance in space-constrained applications that also require environmental protection. Fitted with two effective rubber contact seals (2RS), it guards against dust, moisture, and contaminants while retaining grease for extended service life. With a 25 mm bore and a slender 9 mm width, this bearing is an excellent choice for compact motors, gearboxes, actuators, and other light industrial or automotive mechanisms operating in potentially harsh conditions.

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.

6303 Deep Groove Ball Bearing – Versatile and Reliable for General Machinery and Motor Drives | 17×47×14 Mm

The 6303 is a Medium Series Deep Groove Ball Bearing in a standard open design, renowned for its balanced performance and wide applicability. Engineered without integral seals or shields, it offers maximum design flexibility and is ideal for applications where the bearing is incorporated into a pre-lubricated or regularly serviced assembly. With a 17 mm bore, a 47 mm outer diameter, and a 14 mm width, this bearing provides an optimal combination of compactness, load capacity, and speed capability for a diverse range of industrial and automotive uses.

6806-2RS Sealed Deep Groove Ball Bearing for Compact Mechanisms & Precision Equipment | 30×42×7 Mm

The 6806-2RS is a Double Rubber-Sealed Extra-Light Series Deep Groove Ball Bearing designed for applications where space constraints and contamination protection are critical. Equipped with two rubber contact seals (2RS) on both sides, it efficiently blocks dust, moisture, and debris while maintaining internal lubrication. Featuring a 30 mm bore and a slim 7 mm width, this bearing is ideal for compact assemblies, small precision instruments, and light-duty mechanical systems where reliable sealing and smooth operation are essential.

6202-2RS Sealed Deep Groove Ball Bearing for Light Industrial & Motor Applications | 15×35×11 Mm

The 6202-2RS is a Double Rubber-Sealed Light Series Deep Groove Ball Bearing designed for reliable performance in environments requiring protection against contaminants and moisture. Fitted with two integrated rubber contact seals (2RS), it effectively seals out dust, dirt, and humidity while retaining lubrication for extended service intervals. With a 15 mm bore and a balanced cross-section, this bearing is widely used in small to medium electric motors, automotive components, and general industrial machinery where dependable sealing and smooth operation are essential.

6804-2RS Sealed Deep Groove Ball Bearing for Slim Profile Applications | 20×32×7 Mm

The 6804-2RS is a Double Rubber-Sealed Extra-Thin Deep Groove Ball Bearing developed for compact assemblies requiring reliable protection against contaminants. Fitted with two rubber contact seals (2RS) on both sides, it effectively blocks dust, moisture, and fine particles while retaining grease for extended service. With a 20 mm bore and a slim 7 mm width, this bearing is especially suitable for applications where radial space is limited and sealing performance cannot be compromised.

6803-2RS Double Rubber-Sealed Deep Groove Ball Bearing for Ultra-Slim Designs | 17×26×5 Mm

The 6803-2RS is a Double Rubber-Sealed, Extra-Thin Series Deep Groove Ball Bearing engineered for applications where minimal axial space and reliable contamination protection are paramount. Featuring two integrated rubber contact seals (2RS), it provides an effective barrier against dust, moisture, and fine particulates while securing internal lubrication. With a compact 17 mm bore and an exceptionally slim 5 mm width, this bearing is the ideal choice for highly space-constrained mechanisms requiring dependable sealed performance.

6802-ZZ Shielded Deep Groove Ball Bearing for High-Speed Compact Designs | 15×24×5 Mm

The 6802-ZZ is a Double Metal-Shielded, Extra-Thin Series Deep Groove Ball Bearing designed for applications requiring high-speed capability and basic contamination protection in a minimal axial space. Equipped with two pressed steel shields (ZZ), it effectively guards against larger dust particles and debris while maintaining low internal friction. With a 15 mm bore and an ultra-slim 5 mm width, this bearing is an optimal choice for precision mechanisms where space is limited and lower torque is preferred over full sealing.

6306 Open Deep Groove Ball Bearing for Medium-Duty Industrial Applications | 30×72×19 Mm

The 6306 is a Single Row, Medium Series Deep Groove Ball Bearing engineered for robust performance and versatility across a wide range of industrial applications. As an open-type bearing without integral seals or shields, it provides maximum design flexibility for custom sealing arrangements and optimal heat dissipation. With a 30 mm bore and a substantial 19 mm width, it offers a balanced combination of high load capacity and dimensional stability, making it a reliable choice for demanding machinery and power transmission systems.

6301-2RS Sealed Deep Groove Ball Bearing for Robust Medium-Duty Applications | 12×37×12 Mm

The 6301-2RS is a Double Rubber-Sealed, Medium Series Deep Groove Ball Bearing designed to deliver reliable performance and environmental protection in demanding conditions. Fitted with two integral rubber contact seals (2RS), it forms an effective barrier against contaminants such as dust, dirt, and moisture, while securely retaining lubricant within the bearing. With a 12 mm bore, 37 mm outer diameter, and a 12 mm width, this bearing offers an excellent balance of load capacity and compactness, making it ideal for medium-duty applications where sealing integrity is crucial.

6207 Standard Deep Groove Ball Bearing for General Industrial Use | 35×72×17 Mm

The 6207 is a Single Row, Standard Series Deep Groove Ball Bearing designed for reliable performance in a wide array of industrial applications. As an open-type bearing without built-in seals or shields, it offers maximum versatility for custom lubrication and sealing arrangements. With a 35 mm bore, 72 mm outer diameter, and a 17 mm width, it provides an optimal balance of high load capacity, moderate cross-section, and excellent durability, making it a fundamental component in power transmission and rotating machinery.

6206-2RZ Non-Contact Sealed Deep Groove Ball Bearing for Efficient Operation | 30×62×16 Mm

The 6206-2RZ is a Non-Contact Rubber-Sealed, Standard Series Deep Groove Ball Bearing engineered to balance effective contamination protection with minimal friction. Equipped with two low-friction rubber seals (2RZ), it shields against dust and moisture while maintaining lower operating torque compared to contact seals. Featuring a 30 mm bore, 62 mm outer diameter, and a 16 mm width, this bearing is designed for applications requiring reliable environmental protection and energy-efficient performance in a medium-duty format.

6205-2RS Sealed Deep Groove Ball Bearing for Versatile Industrial Use | 25×52×15 Mm

The 6205-2RS is a Double Rubber-Sealed, Standard Series Deep Groove Ball Bearing designed to deliver reliable performance in environments where contamination protection is essential. Featuring two effective rubber contact seals (2RS), it provides a dependable barrier against dust, moisture, and other airborne particles while retaining lubrication. With a bore of 25 mm, outer diameter of 52 mm, and width of 15 mm, this bearing offers a robust and compact solution for a wide range of applications requiring durability and sealed operation.

6203-2RZ Sealed Deep Groove Ball Bearing for Space-Optimized Designs & Precision Mechanisms | 17×40×12 Mm

The 6203-2RZ is a Double Rubber-Sealed Light Series Deep Groove Ball Bearing engineered for applications requiring effective sealing and reliable performance in limited spaces. Fitted with two low-friction rubber seals (2RZ) on both sides, it provides excellent protection against dust, moisture, and particulate ingress while retaining lubricant efficiently. With a 17 mm bore and a compact 12 mm width, this bearing is well-suited for small motors, precision gearboxes, and light industrial equipment where environmental resistance and smooth running are vital.

6204-2RS Sealed Deep Groove Ball Bearing for Durable Performance & Versatile Applications | 20×47×14 Mm

The 6204-2RS is a Double Rubber-Sealed Light Series Deep Groove Ball Bearing built to deliver reliable operation and contamination resistance in a wide range of mechanical systems. Fitted with two rubber contact seals (2RS) on both sides, it effectively prevents the entry of dust, dirt, and moisture while retaining lubrication for extended service intervals. With a 20 mm bore and a robust 14 mm width, this bearing is widely used in electric motors, industrial gearboxes, and machinery where consistent sealing and smooth rotational performance are required.

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