FAG 6004 ZZ Ball Bearing 20x42x12

Application

The FAG 6004 ZZ 20x42x12 is a precision-engineered deep groove ball bearing (deep groove radial ball bearing) designed for demanding industrial applications where high durability, reliability, and sealed performance are essential. With its dimensions of inner diameter 20 mm, outer diameter 42 mm and width 12 mm, this bearing is ideally suited for numerous industrial systems including electric motors, conveyors, gearboxes, machine tools and units installed within bearing housings or as part of a bearing unit. The “ZZ” suffix indicates metal shields on both sides of the bearing, offering enhanced protection from contamination, making it especially suitable for robust industrial environments, where maintenance intervals must be maximised and downtime minimised. The sealed design ensures the bearing retains lubrication and resists ingress of dust and moisture, thus extending its service life and reducing upkeep costs.

Advantages

• Double-side metal shielding (ZZ) - The bearing comes with metal shields on both sides that safeguard the internal components from dust and particles while retaining grease, which supports long life and consistent performance.

• High durability and reliability - Manufactured by FAG to rigorous standards, this deep groove ball bearing offers excellent stability, minimal vibration and is optimised for industrial drives where application reliability is key.

• Compact, widely-applicable size (20x42x12 mm) - These standard dimensions facilitate straightforward integration into existing bearing housings or overhaul kits, supporting efficient upgrades and reducing the need for custom mounting. This makes the bearing a cost-effective element in the design of modern bearing systems.

• Reduced maintenance and increased uptime - Because the bearing is sealed and designed for industrial service, it requires less frequent lubrication and inspection, which translates into fewer interruptions in production and lower overall maintenance costs.

• Versatility in industrial applications - Whether installed in a bearing housing or as part of a self-contained unit, this variant is well suited for applications where the developer wants a proven bearing solution that offers long service life and high performance under radial loads and moderate axial loads.

Technical Data

Type: single-row deep groove ball bearing
Designation: FAG 6004 ZZ
Dimensions: inner diameter (d) = 20 mm, outer diameter (D) = 42 mm, width (B) = 12 mm.
Shielding: metal shields on both sides (ZZ)
Load type: designed for radial loads and moderate axial loads in industrial applications
Key features: sealed design for protection, compact size, high durability, suitability for bearing housings and bearing units.
Applications: industrial drives, machine tools, packaging equipment, conveyors, electric motors and other systems requiring a high-quality deep groove ball bearing.

This bearing supports the design of robust systems where the bearing may be mounted in a bearing housing or as part of a bearing unit, offering a reliable component that contributes to the overall performance and minimises maintenance interventions.

FAQ

Q1: What does the “ZZ” designation mean on this FAG bearing?
A: “ZZ” indicates the bearing is equipped with metal shields on both sides, which provide protection against dust and contamination while retaining internal lubricant—ideal for industrial use.

Q2: Can the FAG 6004 ZZ 20x42x12 be installed in a bearing housing or used as a bearing unit?
A: Yes. With its standard size and sealed configuration, the bearing is well suited both for installation inside bearing housings and as part of a ready-to-install bearing unit, offering flexibility and simplified maintenance.

Q3: In what industrial applications is this bearing most often used?
A: Common applications include electric motors, conveyors, machine tools, gearboxes and automation equipment — basically, systems where a sealed deep groove ball bearing with high durability and compact size is required.

Q4: What are the benefits of choosing this sealed bearing compared to an open bearing?
A: The sealed bearing (6004 ZZ) requires less frequent maintenance, prevents ingress of contaminants, retains lubrication, and generally provides a longer service life compared to an open bearing. This results in lower downtime and reduced cost of ownership.

Q5: Is the product available for fast dispatch?
A: Yes — the bearing is in stock and ready for quick dispatch, enabling 24-hour delivery from our warehouse.