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

Deep Groove Ball Bearing 606 Z

The 606 Z is a high-precision, single-row deep groove ball bearing fitted with a single-side steel shield (Z). As part of the miniature bearing series, it is engineered for compact, high-speed applications where reliable performance and space-saving design are critical.

Deep Groove Ball Bearing 608 Z

The 608 Z is a versatile and widely used single-row deep groove ball bearing fitted with a single-side steel shield (Z). As a standard-size bearing in the extra light 60 series, it offers an excellent balance of compact design, high-speed capability, and reliable performance for a vast range of industrial and consumer applications.

Deep Groove Ball Bearing 6001 RS

The 6001 RS is a reliable and commonly specified single-row deep groove ball bearing fitted with a rubber contact seal on one side (RS). As a standard component of the extra light 60 series, it delivers an effective combination of one-sided sealing protection, high-speed capability, and a compact, lightweight design for a broad array of industrial and mechanical applications.

Deep Groove Ball Bearing 6005 RS

The 6005 RS is a robust and versatile single-row deep groove ball bearing fitted with rubber contact seals on both sides (2RS). As a dependable member of the extra light 60 series, it offers an excellent combination of effective sealing for contaminant exclusion, substantial load capacity, and smooth operation, making it a prime choice for applications in demanding or dirty environments.

Deep Groove Ball Bearing 6005 ZZ

The 6005 ZZ is a robust and widely used single-row deep groove ball bearing fitted with steel shields on both sides (ZZ). As a key member of the extra light 60 series, it offers a reliable and cost-effective solution for applications requiring effective protection against dust and coarse contaminants while maintaining high-speed capability and good load capacity.

604 ZZ Deep Groove Ball Bearing Extra Light Miniature Bearing | 4×12×4 mm

The 604-ZZ Light Miniature Bearing is a Double Shielded Miniature Deep Groove Ball Bearing from the Extra Light series. Equipped with pressed steel shields on both sides (ZZ suffix), it provides effective protection against dust while maintaining low running torque. With its compact 4x12x4 mm dimensions, it is a fundamental component for space-sensitive precision mechanisms.

605 ZZ Miniature Deep Groove Ball Bearing for Small Electric Motors | 5×14×5 mm

The 605 ZZ is a Premium Miniature Deep Groove Ball Bearing engineered for reliable performance in compact, high-speed devices. Featuring double metal shields (ZZ) on both sides, this metric bearing offers enhanced protection against dust and debris while maintaining low running torque. With a 5mm bore, it is ideal for small motors, encoders, office automation equipment, and precision instruments where space is at a premium.

607 ZZ Miniature Deep Groove Ball Bearing for Precision Instruments | 7×19×6 mm

The 607-ZZ is a Premium Miniature Deep Groove Ball Bearing designed for durable and smooth operation in compact mechanical assemblies. Featuring double metal shields (ZZ) on both sides, this metric bearing offers reliable protection against dust and particulate ingress while maintaining low rotational friction. With a 7mm bore and a slim profile, it is well-suited for small gearboxes, precision instruments, office machinery, and various applications demanding robust performance in limited spaces.

606 ZZ Deep Groove Ball Bearing for Office Automation Equipment | 6×17×6 mm

The 606 ZZ is a Premium Miniature Deep Groove Ball Bearing engineered for smooth, reliable operation in compact and precision applications. Featuring double metal shields (ZZ) on both sides, this metric bearing provides effective protection against dust and particulate contaminants while ensuring low friction torque. With a 6mm bore and an ultra-compact outer diameter, it is ideal for small motors, encoders, office automation, and instruments where space-saving and cleanliness are paramount.

608 ZZ Deep Groove Ball Bearing for Skate Wheels | 8x22x7 mm

The 608-ZZ is a Premium Deep Groove Ball Bearing engineered for versatile and durable performance in a wide range of applications. Featuring double metal shields (ZZ) on both sides, this popular metric bearing provides reliable protection against dust and contaminants while ensuring low-friction operation. With a standard 8mm bore, it is a universal choice for skate wheels, electric motors, small machinery, and various mechanical assemblies requiring a robust and compact bearing solution.

609 ZZ Deep Groove Ball Bearing for Industrial Fans | 9x24x7 mm

The 609-ZZ is a Premium Deep Groove Ball Bearing engineered for robust and reliable performance in diverse mechanical applications. Featuring double metal shields (ZZ) on both sides, this standard metric bearing provides effective dual-side protection against dust and contaminants, ensuring long-lasting lubrication and smooth operation. With a 9mm bore, it is a versatile choice for industrial fans, conveyors, fitness equipment, and various machinery requiring a durable and general-purpose bearing solution.

6004 Deep Groove Ball Bearing For General Machinery & Electric Motors | 20×42×12 Mm

The 6004 is a Standard Open Deep Groove Ball Bearing designed for versatile and reliable performance in a wide array of industrial and commercial applications. Featuring the universal deep groove raceway, this bearing efficiently accommodates radial loads and moderate axial loads in both directions. With a 20 mm bore, it serves as a fundamental and widely used component in electric motors, gearboxes, household appliances, and general machinery where dependable operation and cost-effectiveness are key.

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.

6022-2RS Sealed Deep Groove Ball Bearing For Industrial Power Transmission | 110×170×28 mm

The 6022-2RS is a Double Rubber-Sealed Single Row Deep Groove Ball Bearing engineered to deliver reliable, long-lasting performance in industrial power transmission and processing equipment. Equipped with two synthetic rubber contact seals (2RS) on both sides, it provides excellent protection against moisture, dust, and fine particulate contamination, effectively retaining lubrication and preventing premature wear in demanding operating conditions. With a 110 mm bore and optimized cross-section from the 60 series extra-light designation, this bearing is well-suited for electric motors, pumps, gearboxes, and industrial machinery operating in moderately contaminated environments.

6003-ZZ Deep Groove Ball Bearing For General Purpose Applications | 17×35×10 mm

The 6003-ZZ is a versatile, single-row deep groove ball bearing engineered for a broad spectrum of industrial and light-duty machinery requiring dependable performance under moderate loads. Featuring dual Z-type metal shields, this bearing provides effective protection against the ingress of dust and solid contaminants while maintaining low frictional torque. With a 17 mm bore and a 10 mm width, it is the preferred choice for electric motors, pumps, and household appliances where durability and contamination resistance are critical for extended service life.

602 Open Deep Groove Ball Bearing for Miniature High-Speed Applications | 2×7×3.5 mm

The 602 Open is a Miniature Deep Groove Ball Bearing engineered for ultra-compact mechanisms where minimal friction and high rotational speeds are paramount. With an open design (without shields or seals), this bearing allows maximum speed capability and easy relubrication, making it ideal for precision instruments, small motors, and devices that demand low torque and smooth, quiet operation in clean environments. Its 2 mm bore and ultra-light cross-section enable integration into the most space-constrained assemblies.

602-2RS Sealed Miniature Deep Groove Ball Bearing for Moisture-Resistant Applications | 2×7×3.5 mm

The 602-2RS is a Double Rubber-Sealed Miniature Deep Groove Ball Bearing engineered for compact mechanisms requiring reliable protection against moisture, dust, and fine particulate contamination. With two synthetic rubber contact seals (2RS) on both sides, this bearing provides excellent sealing performance while retaining lubrication and preventing ingress of contaminants in challenging environments. Featuring a 2mm bore and ultra-compact cross-section, it is ideal for precision instruments, small electric motors, and medical devices where space is severely limited and operational cleanliness is critical .

603-2RS Miniature Deep Groove Ball Bearing For Precision Instruments | 3×9×5 mm

The 603-2RS is a Miniature Deep Groove Ball Bearing designed for high-precision applications where space is extremely limited and reliable sealing is critical. Featuring double rubber contact seals (2RS) , this variant provides superior protection against moisture, dust, and fine particulate contamination. With a tiny 3 mm bore, a 9 mm outer diameter, and a 5 mm width, it is the ideal choice for compact rotary assemblies requiring maintenance-free operation and low frictional torque.

6008 Widely Used Deep Groove Ball Bearing For General Engineering | 40×68×15 Mm

The 6008 Open is a Versatile and Widely Used Single Row Deep Groove Ball Bearing engineered for general industrial applications requiring high-speed capability and robust performance. Featuring an open (no seal or shield) design, it allows for free circulation of oil or grease lubrication, making it ideal for assemblies where lubrication is supplied externally. With a 40 mm bore, 68 mm outer diameter, and 15 mm width, this bearing is a standard choice for transmissions, electric motors, and industrial gearboxes where reliable radial and axial load accommodation is essential .

6008-2RS Deep Groove Ball Bearing For Light-to-Medium Duty Applications | 40×68×15 Mm

The 6008-2RS is a Single-Row Deep Groove Ball Bearing featuring double-lip contact rubber seals on both sides, designed for reliable performance in light-to-medium duty industrial and commercial equipment. Its compact 40 mm bore, 68 mm outer diameter, and 15 mm width make it ideal for applications with limited housing space that require protection against contaminants. The integrated 2RS seals effectively retain lubricant and exclude dust, moisture, and debris, ensuring extended maintenance-free operation in moderate-speed environments.

6008-2Z Deep Groove Ball Bearing For Versatile Performance & Reliable Operation | 40×68×15 mm

The 6008-2Z is a Standard Shielded Deep Groove Ball Bearing from the popular 60-series, designed to handle moderate radial and axial loads in both directions with efficiency and quiet operation. Its double metal shield (2Z) configuration provides effective protection against dust and contaminants while retaining lubrication, making it a maintenance-friendly solution for a wide array of applications. With a 40 mm bore, 68 mm outer diameter, and 15 mm width, this bearing is a common choice for electric motors, automotive components, and general machinery where dependable, high-speed performance is required.

6008-ZZ Deep Groove Ball Bearing For General Engineering & Automotive | 40×68×15 mm

The 6008-ZZ is a versatile and durable single-row deep groove ball bearing designed to deliver reliable performance across a wide range of industrial and automotive applications. Featuring double metal shields (ZZ) , this bearing provides effective protection against dust, dirt, and moisture ingress while retaining lubricating grease. With a 40mm bore, it is a robust, space-efficient solution for electric motors, pumps, gearboxes, and agricultural machinery where consistent operation under radial and axial loads is required .

6009 Deep Groove Ball Bearing For Industrial Machinery And Drive Systems | 45×75×16 mm

The 6009 is a versatile single-row deep groove ball bearing engineered to deliver consistent and reliable performance across diverse industrial applications. As an open-type bearing, it allows for flexible lubrication options, either grease or oil, making it ideal for gearboxes, pumps, and electric motors where existing lubricant systems are in place . With a 45mm bore, this metric bearing provides a robust and space-efficient solution for transmitting forces in medium-duty mechanical systems where both radial and axial loads are present.

6009-2RS Deep Groove Ball Bearing For Reliable Protection & Maintenance-Free Operation | 45×75×16 mm

The 6009-2RS is a Standard Sealed Deep Groove Ball Bearing from the versatile 60-series, engineered to accommodate moderate radial and axial loads in both directions while ensuring quiet and efficient operation. Its double rubber contact seal (2RS) configuration provides superior protection against moisture, dust, and contaminants, effectively retaining lubrication for extended, maintenance-free life. With a 45 mm bore, 75 mm outer diameter, and 16 mm width, this bearing is a preferred component for electric motors, automotive systems, and agricultural machinery where dependable performance and protection are critical .

6009-2Z Deep Groove Ball Bearing For High-Speed Performance & Contamination Protection | 45×75×16 mm

The 6009-2Z is a Standard Shielded Deep Groove Ball Bearing from the versatile 60-series, engineered to accommodate moderate radial and axial loads in both directions while ensuring quiet and efficient operation. Its double metal shield (2Z) configuration provides effective protection against dust and larger particles while retaining lubrication, making it a maintenance-friendly solution for high-speed applications. With a 45 mm bore, 75 mm outer diameter, and 16 mm width, this bearing is a preferred component for electric motors, pumps, and general machinery where dependable, high-speed performance is required .

6009-ZZ Shielded Deep Groove Ball Bearing For General-Purpose Applications | 45×75×16 mm

The 6009-ZZ is a Double Metal Shielded, Single-Row Deep Groove Ball Bearing engineered for quiet, high-speed operation and extended service life in clean environments. Featuring two non-contact metal shields (ZZ) , it effectively retains grease while excluding fine dust and debris, offering a low-torque solution for a wide range of industrial and automotive applications. With a 45 mm bore, 75 mm outer diameter, and a 16 mm width, this bearing provides a robust balance of load capacity and dimensional versatility, making it a standard choice for medium-duty general machinery .

6010-ZZ Shielded Deep Groove Ball Bearing For Industrial Drive Systems | 50×80×16 mm

The 6010-ZZ is a Double Metal Shielded, Single-Row Deep Groove Ball Bearing engineered for quiet operation and extended service life in industrial drive applications. Featuring two rigid metal shields (ZZ) , it effectively retains grease while excluding dust and solid contaminants, offering a low-friction solution for continuous-duty equipment. With a 50 mm bore, 80 mm outer diameter, and a 16 mm width, this bearing delivers robust load capacity in a compact form factor, making it an industry standard for pumps, gearboxes, and electric motors .

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