Keep Your Robots Running Smoothly: Simple Bearing Care & Corrosion Prevention

Industrial robot bearings are the hidden heroes that keep your automation precise and reliable. Like any critical component, they need proper care to prevent wear and corrosion – the biggest enemies of performance and lifespan. Here’s how to protect them:

​Your 3-Step Bearing Care Routine:​​

1. ​Deep Clean:​​ Gently clean bearings in a solvent (like kerosene or specialized degreasers) to remove old grease, dirt, and metal particles. Use fine sandpaper to carefully remove any rust until the surface is smooth. Rinse thoroughly.
2. ​Fight Rust:​​ Dry bearings completely with a clean cloth. Soak them in high-quality rust-preventive oil, rotating them constantly to ensure every surface is coated for maximum protection.
3. ​Lubricate Right:​​ Apply the manufacturer-recommended grease or oil evenly over all parts (inner/outer rings, balls/rollers, cage). Rotate the bearing while applying to ensure the lubricant penetrates deep inside for smooth operation.

​Why Bearings Corrode (and How to Stop It):​​

Bearings rust when metal meets moisture, chemicals, or contaminants. Common causes include:

• ​Humid/Damp Air:​​ Moisture forms a film on metal, causing rust. Common in food processing, washdown areas, or outdoor robots.
• ​Chemicals & Liquids:​​ Exposure to acids, alkalis (like cleaning agents, weld fumes, or coolants) eats away at metal.
• ​Sweat & Touch:​​ Skin oils and sweat are slightly acidic and can cause rust. Always handle bearings with clean gloves!
• ​Dust & Grime:​​ Abrasive particles scratch surfaces and trap moisture, accelerating corrosion.
• ​Wrong Lubricant:​​ Using grease that can't handle water, heat, or chemicals leaves bearings unprotected.
• ​Poor Seals/Design:​​ Damaged seals or designs that trap water/dirt let corrosion in.

​Prevent Corrosion & Extend Bearing Life:​​

• ​Choose Wisely:​​ In harsh environments (wet, chemical, salty), use stainless steel bearings or bearings with special coatings.
• ​Seal Tight:​​ Ensure high-quality, compatible seals (like double-lip rubber or metal) are intact to keep moisture and dirt out.
• ​Lubricate Smart:​​ Use the right grease for your environment (e.g., waterproof, chemical-resistant, high-temperature grease). Don't over or under-lubricate.
• ​Keep it Clean:​​ Regularly wipe down robots and maintain a clean workspace to minimize dust and debris.
• ​Handle with Care:​​ Always wear gloves when touching bearings. Use proper tools during installation to avoid damage.
• ​Check Often:​​ Listen for unusual noises, feel for excess vibration, and monitor bearing temperature during routine checks. Replace worn seals or bearings promptly.
• ​Follow the Schedule:​​ Stick to a maintenance plan tailored to your robot's workload and environment (more frequent checks in tough conditions).

​The Payoff: Reliability & Savings​

Simple, consistent bearing care prevents costly downtime, maintains robot accuracy, and significantly extends the life of your valuable automation equipment. Protect your investment!

​Need help choosing the right bearings or lubricants for your robots? Contact our experts Beining Technology today!​