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.
6004-ZZ Deep Groove Ball Bearing 20×42×12 mm | ISO 60 Series – Medium | Double Metal Shielded
Featuring a classic deep groove design, this shielded bearing supports smooth and quiet operation at speeds up to 22,000 r/min (Oil). It is engineered to handle moderate radial loads and light axial loads in both directions. The 6004-ZZ is an excellent choice for applications requiring high-speed performance with minimal friction, such as in industrial motors, automotive systems, and precision machinery where dust protection is essential.

Suitable for medium- to high-speed applications across multiple sectors where dust protection and reliable performance are critical:
Precision-engineered with optimized internal geometry and smooth raceways, the 6004-ZZ ensures stable performance, low vibration, and quiet operation even at elevated rotational speeds.
Two non-contact steel shields (ZZ) provide reliable defense against dust and dry contaminants while minimizing friction. This design is ideal for high-speed applications where sealing without added drag is required.
Constructed to medium series dimensions (20×42×12 mm), this bearing offers a strong balance of load capacity, speed capability, and compact design, suited for demanding industrial and automotive uses.
| Bearing Type | Single Row Deep Groove Ball Bearing |
| ISO Dimension Series | 60 Series – Medium |
| Basic Designation | 6004 |
| Suffix | ZZ (Double Metal Shields) |
| Bore Diameter (d) | 20 mm |
| Outer Diameter (D) | 42 mm |
| Width (B) | 12 mm |
| Material (Races & Balls) | Chrome Steel (GCr15 / SAE 52100) |
| Precision Class | Standard / P5 Grade Available |
| Cage Material | Steel Stamped |
| Dynamic Load Rating (Cʳ) | 12.7 kN |
| Static Load Rating (C₀ʳ) | 6.55 kN |
| Limiting Speed (Grease) | 18,000 r/min |
| Limiting Speed (Oil) | 22,000 r/min |
| Weight (approx.) | 68 g |
Common manufacturer equivalents include:
The 6004-ZZ is supplied with standard double steel shields, offering effective non-contact protection in dry or lightly contaminated environments. For wet or heavily contaminated conditions, the double rubber-sealed version (6004-2RS) is recommended as an alternative.
"Choose the 6004-ZZ for high-speed electric motors, automotive accessories, and industrial drives where dust protection and low-friction performance are essential for long service life."
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.
Details
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.
Details
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.
Details
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 .
Details
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.
Details
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 .
Details
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.
Details
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.
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