Gear Oils

Gear oils – premium industrial lubricants for reliable operation of gear units and power transmissions

Professional selection of gear oils for maximum performance and protection of industrial gear units

Gear oils are a key component of any system where mechanical energy is transmitted through gear drives, reducers or industrial gearboxes. Their function goes far beyond simple lubrication—they provide reliable gear protection, reduce wear, prevent micro-welding of contact surfaces, dissipate heat, and ensure long-term operation even under heavy, high-load industrial conditions.
At M&M Intercom we offer industrial gearbox oils that meet the most demanding quality standards and are suitable for all industrial sectors, including food processing, energy production, metalworking and automated production lines.

Gear oils are formulated to operate reliably under high loads, shocks, vibrations, elevated temperatures and environments where gear units face intensive duty cycles. Since gearbox reliability directly affects industrial efficiency, selecting the correct oil is crucial for long-term system stability.

Characteristics and performance of high-quality industrial gear oils

High-quality gear oils must meet strict requirements, as gear drives are among the most heavily loaded components in industrial systems. The functions of gear oil include:

• reducing friction between gears and bearings
• protecting against wear, especially against micropitting
• reducing thermal stress and dissipating heat
• protecting against oxidation, foaming and oil ageing
• stable lubrication across a wide temperature range
• resistance to high loads (EP – Extreme Pressure additives)
• corrosion protection in humid or condensation-prone environments

Because modern gear units operate under continuous high-load conditions, gear oil is one of the most important factors influencing gearbox service life. Properly selected oil reduces thermal stress, prevents material fatigue and maintains precise tooth engagement throughout extended operation.

Wide selection of gear oils – for all types of industrial applications

We offer a complete range of industrial gear oils suitable for standard gear drives, worm gears, planetary gear units and high-speed transmissions.

Mineral EP gear oils

Suitable for general industrial use, stable, economical and widely applicable. Contain EP additives (Extreme Pressure) enabling operation under high loads.

Synthetic oils (PAO, PAG)

Used for high loads, extreme temperatures, high speeds or applications requiring extended oil life. They provide:

• extended oil change intervals
• excellent low-temperature properties
• resistance to oxidation
• lower operating temperatures

Ideal for continuously operating gearboxes or installations with limited access for maintenance.

Oils for worm gears and special drive systems

Worm gears operate with sliding friction and therefore require lubricants with anti-wear protection, high lubricity and thermal stability.

Food-grade gear oils (H1)

We offer a dedicated line of oils suitable for environments where incidental food contact is possible. These oils feature certified formulations, outstanding stability, neutral smell and taste, and comply with:

• NSF H1
• ISO 21469

Suitable for bakeries, dairy plants, filling lines, the food industry and pharmaceuticals.

Bulk packaging gear oils

We also provide gearbox oils in larger packaging sizes:

• 60 L
• 200 L
• 205 L
• 208 L
• 1000 L IBC

Suitable for large industrial facilities or central lubrication systems.

ISO standards and viscosities – choosing correctly for optimal performance

We offer gear oils in a variety of viscosity grades and standards, including:

• ISO 68
• ISO 100
• ISO 150
• ISO 220
• ISO 320
• ISO 460
• ISO 680

These grades determine oil film thickness and lubricity. Higher viscosities are suitable for slow, heavily loaded gears, while lower viscosities are used in high-speed transmissions.

Quality standards:

• ISO 6743-6 CKC – industrial gear oils
• ISO 12925-1 CKC – high-performance gear oils for demanding industrial applications

In addition to standard selections, we also offer specialised oils for extreme thermal conditions or continuously operating gear units.

Manufacturers of professional gear oils

We supply only proven solutions from globally recognised brands:

• Addinol
• NSL
• ORLEN
• ENI
• Klüber
• Mobil
• Morris
• Castrol

These manufacturers are synonymous with reliability, superior EP performance, long service life and optimal protection of all types of industrial gear drives.

Why choose gearbox oils from M&M Intercom

We provide verified quality, technical support and tailored solutions. Our advantages include:

• guidance in selecting the correct viscosity
• assistance with choosing the appropriate ISO standard
• recommendations based on duty cycle and application
• steady stock availability of key products
• large-volume packaging for industrial use
• solutions for food-grade applications
• coverage of standard and specialised gearbox applications

Our long-standing experience allows us to help companies reduce wear, extend gearbox service life and optimise production performance.

Professional consulting and technical support

Choosing the correct gearbox oil is essential for reliable industrial operation. We offer expert support including:

• analysis of existing lubricants
• recommendations for efficiency improvement
• assistance with switching to synthetic oils
• determination of optimal oil change intervals
• troubleshooting gearbox performance issues

Our goal is to ensure every oil in your system operates as efficiently as possible and meets application requirements.

 

10 Most Frequently Asked Questions (FAQ)

1. Why are gearbox oils so important for industrial gear drives?
Gear oils reduce friction, dissipate heat, protect surfaces from wear and prevent micro-welding under high loads. Since gearboxes are among the most stressed components in industrial systems, proper oil prevents premature wear, reduces downtime and maintains stable operation.
2. How do I choose the correct viscosity for gearbox oil?
Viscosity depends on gearbox design, rotational speed, load and ambient temperature. Lower viscosities (ISO 68, ISO 100) suit high-speed gearboxes, while higher grades (ISO 320, ISO 460, ISO 680) provide lubrication for slow, heavily loaded gears.
3. What is the difference between mineral and synthetic gearbox oils?
Mineral oils are economical and suitable for standard applications. Synthetic oils (PAO, PAG) offer superior resistance to heat, oxidation and extreme loads, with significantly longer service intervals.
4. How often should industrial gear oil be changed?
Mineral oils typically require changes every 2,000–5,000 hours, while synthetics often last 10,000–20,000 hours or longer. Oil condition (colour, sediment, viscosity change, foaming) should be monitored, especially in continuous 24/7 operation.
5. What do ISO 6743-6 CKC and ISO 12925-1 CKC mean?
These standards define the required performance characteristics of industrial gear oils, including wear protection, thermal stability, corrosion resistance and EP behaviour.
6. Are food-grade gear oils available?
Yes—NSF H1 and ISO 21469 certified oils are available for environments where incidental food contact can occur.
7. What are the consequences of using incorrect gearbox oil?
Incorrect oil can cause:

• increased friction and wear
• overheating
• foaming and lubrication loss
• micropitting
• vibration and noise
• higher energy consumption
• reduced gearbox lifespan

8. How important are EP additives?
EP (Extreme Pressure) additives enable the oil to withstand extreme loads, preventing micro-welding and reducing wear—essential for shock-loaded, high-torque or sliding-contact gear systems.
9. Which packaging sizes are best for industrial use?
Small systems typically use 1 L to 20 L containers. Larger facilities rely on 60 L, 200 L, 205 L, 208 L drums or 1000 L IBC tanks for centralised lubrication.
10. Why choose gear oils from M&M Intercom?
We supply leading global brands and provide expert support, viscosity selection, ISO guidance, maintenance optimisation and oil analysis.