Ball Bearing MR74 ZZ EZO 4x7x2.5 mm

Miniature Ball Bearing MR74 ZZ EZO 4x7x2.5 mm

High-quality EZO (Japan) miniature deep groove ball bearing with dimensions 4 mm (ID) x 7 mm (OD) x 2.5 mm (Width).

Equipped with double metal shields (ZZ) that protect rolling elements from dust and small particles, while allowing for smooth high-speed rotation. Made of standard bearing steel, ensuring stable performance in precision mechanisms.

Key Features:

• Type: single-row miniature deep groove ball bearing

• Dimensions: 4x7x2.5 mm

• Manufacturer: EZO (Japan)

• Shields: ZZ - double metal shields, non-contact

• Material: high-quality bearing steel (not stainless)

• Optimized for high-speed and low-friction operation

• Compact size for miniature mechanisms

Applications:

• Fishing reels - smooth, quiet, and precise operation

• Power tools and micromotors

• Measuring instruments and electronics

• Compact mechanisms with limited installation space

FAQ - Frequently Asked Questions

1. What does MR74 ZZ mean?
MR74 indicates the bearing size (4x7x2.5 mm), while ZZ refers to the double metal shields on both sides.

2. Where is this bearing used?
In fishing reels, miniature drives, micromotors, measuring instruments, and other precision mechanisms.

3. Is MR74 ZZ corrosion resistant?
No - it is made of standard bearing steel, not stainless. It should be used with protective grease if exposed to moisture.

4. What are the advantages of ZZ shields?
They protect against dust and dirt while allowing low-friction, high-speed operation.

5. Are other EZO miniature sizes available?
Yes - simmering.pl offers a wide range of miniature EZO ball bearings in various sizes and shield configurations.