Solid Lubricated Spherical Roller Bearing (SRB) for Heavy Duty Applications

MTWB Solid Lubricant SRB Spherical Roller Bearings are self-lubricating bearings engineered for applications where conventional lubrication is difficult, impossible, or uneconomical.

Designed with embedded solid lubricants and advanced polymer matrix technology, these bearings provide reliable performance under high loads, low speeds, high temperatures, dusty environments, and heavy industrial operating conditions. MTWB helps OEM manufacturers improve equipment reliability while reducing maintenance costs and extending service life through application-specific bearing solutions.

What is Solid Lubrication Spherical Roller Bearing?

Solid lubricated spherical roller bearings use a polymer-based solid lubricant material that continuously releases oil during operation. This design helps reduce maintenance frequency and improves reliability in applications where grease lubrication is difficult or impossible.







Types of Solid Lubricant:




Whole MTWB Solid Lubrication Bearing Photo:

Solid Lubricated Spherical Roller Bearing Specifications

Key Features & Advantages

✓ Lifetime Maintenance Free

With polymer matrix adsorption saturated lubricant technology, the lubricant seamlessly adheres to the raceway and rolling elements without the need for an external oil supply system—re-greasing is completely eliminated.

The embedded sealing design effectively prevents pollutant invasion, improves water flushing resistance by 80%, and significantly reduces downtime risk caused by lubrication failure

✓ Extended Service Life

Solid lubricant content is 2–4 times higher than traditional lubricants, extending bearing service life by more than 3 times and significantly reducing spare parts replacement frequency.

✓ Contamination Prevention

The solid lubricant maintains close contact with raceways and rollers, nearly filling the entire bearing. The remaining space effectively prevents pollutants from entering, protecting the bearing from contamination.

✓ Zero Lubricant Leakage

Lubricating oil is stored in micropores within the polymer based on surface tension.During operation, oil transfers to the material surface via capillary action; when operation stops, oil is reabsorbed into the polymer for "storage"—preventing environmental pollution caused by leakage.

✓ Extreme Environment Performance

Suitable for high ambient temperatures (up to 200°C), high humidity, dusty environments, and chemical corrosion conditions.The integral bearing seal further improves oil retention.

✓ Superior Anti-Rinsing Capability

Solid lubricants support integral seals with excellent anti-rinsing ability.

Note: Solid lubricants cannot be used in organic solvents (acetone, petroleum benzene, white kerosene, etc.)

How It Works

Polymer material is injected into the bearing in a special way. The polymer adsorbs saturated lubricating oil, ensuring the plastic oil remains tightly and continuously in contact with raceways and rollers, effectively preventing contaminants from entering the bearing interior.

The lubricating oil is "stored" in micro-pores within the polymer based on surface tension. During operation, a small portion slowly moves to the material surface due to capillary action; when operation stops, the oil re-adheres to the polymer for "storage".

Applications

Additional applications include: ships/marine equipment, heavy industrial machinery, and other demanding environments where conventional lubrication is impractical.

Cost-effective Alternative to International Brands

MTWB solid lubricated spherical roller bearings provide a reliable alternative solution to international bearing brands for customers seeking high performance, long service life and optimized procurement costs.

For customers looking for a replacement solution for SKF spherical roller bearings, FAG spherical roller bearings, NTN SRB bearings and Timken spherical roller bearings, MTWB offers customized bearing solutions based on application requirements, including bearing dimensions, internal clearance, lubrication design, cage configuration and operating conditions.

FAQ

Q1: What is a solid lubricated spherical roller bearing?

A solid lubricated spherical roller bearing uses solid lubricant technology to provide continuous lubrication and reduce maintenance requirements in demanding industrial environments.

Q2: What are the advantages of solid lubrication?

Solid lubrication improves bearing reliability by reducing grease leakage, extending lubrication life and minimizing maintenance downtime.

Q3: Where are spherical roller bearings used?

They are widely used in mining, steel plants, construction machinery, conveyors and heavy industrial equipment requiring high load capacity.

Q4: Can MTWB customize solid lubricated SRB bearings?

Yes. MTWB provides customized solutions including bearing size, clearance, lubrication system and OEM packaging requirements.