What are the advantages of deep groove ball bearings?

Five Practical Advantages of Deep Groove Ball Bearings

1. Affordable and Abundant (Cost Killer)

Bargain Price: Simple structure, manufactured globally, half the price of angular contact bearings.
No Worries About Stockpiling: Easily available at hardware stores and industrial supply stores; replacements readily available even if your machine breaks down in the middle of the night.

2. Robust and Durable (Load Expert)

Expert in Axial Force: Naturally adept at withstanding vertical pressure, such as the heavy weight of a motor rotor.
Tolerates Minor Pushing and Pulling: Can handle minor axial thrust and the force of drilling.
Unaffected by Daily Shaking: Treats minor swaying from conveyor belt deviations as a gentle massage.

3. Worry-Free and Delicate (A Boon for Lazy People)

Sealed and Prevents Collapse: One-time installation of rubber seals (ZZ/2RS type) provides dust and water protection for five years; even washing machines can run after being submerged in water.
Low-Lubrication Guarantee: One-time grease application lasts a lifetime; unlike sliding bearings which require daily lubrication.
High installation tolerance: The shaft can still rotate even if slightly misaligned (<0.5°), unlike precision bearings which are extremely fragile.

4. Slim and compact (space magician)

Thin outer ring, tight inner ring, fits easily into electric hammer gearboxes and drone motors without taking up much space.
Weight reduction marvel: More than half the weight of a sliding bearing, ideal for robot joints and model aircraft propellers.

5. Quiet as a sleeping cat (silent champion)

Smooth raceway and low noise: 20 decibels quieter than gear bearings, won't disturb you in an air-conditioned room.
Low temperature and low heat generation: Low friction and low heat generation, the casing won't get hot even when an electric fan runs all night.