Industrial Lubrication
Solutions

Gear oil is formulated for gear mesh lubrication with EP additives for high film strength under extreme pressure. Hydraulic oil is formulated for hydraulic pump and valve lubrication with anti-wear (AW) additives and anti-foam agents. They are NOT interchangeable. Using hydraulic oil in a gearbox causes insufficient film strength and foam; using gear oil in a hydraulic system causes valve sticking from incorrect additive chemistry.

In clean, temperature-controlled environments (±25°C, low dust): 5,000–8,000 hours for mineral oil. In high-dust mining environments or above 45°C ambient: 2,000–4,000 hours mineral, 8,000–15,000 hours synthetic. The most accurate method is oil analysis every 2,000 hours — particle count, moisture content, acid number.

EP stands for Extreme Pressure — gear oils containing chemical additives that form a sacrificial protective film on metal surfaces under high load. When gear tooth contact stress exceeds oil film strength, EP additives prevent metal-to-metal welding and micropitting wear. For mining, crane and steel applications, EP-rated gear oil is standard.

Synthetic gear oil is justified when: (1) Sump temperature exceeds 80°C — synthetic maintains viscosity better. (2) Extended drain intervals are required — synthetic achieves 2–3× operating hours. (3) Cold-temperature operation below −15°C. For most applications above 5°C ambient, quality mineral EP gear oil is adequate.

Yes. Single-point and multi-point automatic lubricators can be fitted to most existing gearboxes, crane drives, conveyors and rotating equipment without major modification. We provide retrofit kits with modified fittings and mounting brackets for common gearbox models.