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

693 ZZ Ultra-Miniature Deep Groove Ball Bearing for High-Speed Micro Motors | 3×8×3 mm

The 693-ZZ is a Premium Ultra-Miniature Deep Groove Ball Bearing engineered for compact, high-precision applications. Featuring double metal shields (ZZ) on both sides, this metric bearing provides effective dual-side protection against dust and light contaminants, ensuring smooth operation in sensitive mechanisms. With an ultra-small 3mm bore, it is an essential component for micro-motors, precision instrumentation, small electronic devices, and any application where extreme miniaturization and reliable rotation are required.

6900 ZZ Thin Section Deep Groove Ball Bearing for High-Speed Electric Motors | 10×22×6 mm

The 6900-ZZ is a Premium Deep Groove Ball Bearing engineered for versatile and reliable performance in applications where a slim profile is required. Featuring double metal shields (ZZ) on both sides, this metric bearing provides effective dual-side protection against dust and contaminants while ensuring low-friction operation. With a 10mm bore and a thin cross-section, it is an ideal choice for compact electric motors, office automation equipment, precision instruments, and various machinery where space-saving is a key consideration.

6909-2RS Deep Groove Ball Bearing For Industrial Drives & Harsh Environments | 45×68×12 mm

The 6909-2RS is a Versatile and Sealed Deep Groove Ball Bearing built for applications requiring reliable operation under demanding conditions. Equipped with double rubber seals (2RS) on both sides, this bearing offers superior protection against dust, moisture, and contaminants, effectively retaining lubricant and ensuring smooth, maintenance‑free performance over extended periods. With a 45mm bore, it is widely used in industrial machinery, electric motors, gearboxes, and agricultural equipment where environmental sealing and durability are essential.

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.

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.

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.

6908-2RS Sealed Deep Groove Ball Bearing for Thin-Section Applications & Precision Drives | 40×62×12 Mm

The 6908-2RS is a Double Rubber-Sealed Extra-Light Series Deep Groove Ball Bearing engineered for applications demanding minimal cross-section with reliable contamination protection. Featuring two rubber contact seals (2RS) on both sides, it effectively shields against dust, moisture, and fine particles while preserving internal lubrication. With a 40 mm bore and a slim 12 mm width, this bearing is an excellent choice for compact machinery, precision instruments, and light-duty drive systems where sealing integrity and space efficiency are equally important .

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