Ball bearing 6204 ZZ — single-row deep groove, shielded both sides

6204 ZZ is a single-row deep groove ball bearing with metal shields on both sides (ZZ). It is designed for radial load support in rotating equipment and offers protection against dust and light contamination while maintaining low friction and reliable running performance. This bearing is typically used where a compact, robust bearing with simple mounting and minimal maintenance is required. No manufacturer brand is specified; verify dimensions and fit before replacement.

Advantages

The double metal shields provide protection from dust and light debris without contact with the rolling elements, allowing for smooth rotation and reduced friction. The deep groove design supports both radial loads and limited axial loads in both directions, and the single-row layout keeps the bearing compact and easy to install. Metal shields increase durability in environments with light contamination while preserving inner lubrication and extending service life under normal operating conditions.

Suitable for

• Electric motors and generators
• Gearboxes and transmissions
• Pumps and fans
• Industrial machinery and conveyors
• Rotating shafts and pulleys where space is limited

Key specifications

• Type: Single-row deep groove ball bearing
• Shielding: Metal shields on both sides (ZZ), non-contact
• Load direction: Primarily radial, limited axial load capacity in both directions
• Design: Open inner geometry suitable for grease lubrication
• Typical properties: Low friction, high rotational accuracy, compact axial width

How to use

Select the 6204 ZZ bearing that matches the shaft diameter, outer housing, and axial space of your application. Clean the housing and shaft surfaces, then press the bearing onto the shaft or into the housing using appropriate tools to avoid applying force to the cage or seals. Ensure correct seating and alignment to prevent misloading. For lubrication, use the grease type recommended for your equipment; the metal shields retain grease but do not make the bearing maintenance-free under all conditions. Follow equipment manufacturer torque and mounting procedures.

Usage recommendations

Verify dimensional compatibility before installation and confirm operating speed, temperature, and load conditions. For environments with heavy contamination or where sealing is critical, consider bearings with contact seals or additional protective measures. Periodically inspect for noise, vibration, and temperature rise and relubricate according to operating hours and grease manufacturer guidance.