GL-5/GL-4/heayv/Medium load Universal Gear Oil Additive Packages For Lubricants T4201A
Universal Gear Oil Additive Packages
T4201A is used to formulate high load-carrying, low wear, energy-saving lubricants for automotive and industrial gear and bearing applications. Oils formulated with T4201A have excellent oxidative and thermal stability.
Product Introduction
T4201A is a multifunctional extreme-pressure (EP) additive package engineered for universal gear oils meeting API GL-5, MT-1, and ISO 12925-1 specifications. Combining advanced sulfur-phosphorus chemistry and polymeric friction modifiers, it delivers robust protection against micropitting, scuffing, and oxidative degradation in high-torque applications—from automotive axles to industrial wind turbine gearboxes. Compatible with mineral, synthetic (PAO/PAG), and bio-based lubricants.
Key Features
- Superior Extreme-Pressure Performance
Synchronizer-Safe EP Agents: Sulfurized isobutylene/phosphorous esters provide >50% higher FZG scuffing load (Stage ≥12, DIN 51354) versus conventional additives while preventing copper corrosion (ASTM D130 ≤3b).
Micropitting Resistance: Nano-borate surface modification reduces surface fatigue by 35% in wind turbine gears (ISO 14635-1).
- Thermal & Oxidative Stability
High-Temperature Film Strength: Maintains viscosity integrity ≤180°C via shear-stable polymeric additives, reducing oil thickening (Δkv100 ≤10% after 1,000h, DIN 51587).
Sludge Control: Ashless dispersants inhibit varnish formation in enclosed gearboxes.
- Multi-Material Compatibility
Protects yellow metals (bronze bushings), sintered components, and carbon seals.
Fully compatible with common seal materials (FKM, NBR, ACM).
- Energy Efficiency & Noise Reduction
Organic molybdenum friction modifiers lower operating temperatures by ≤15°C and reduce gear noise by 4–8 dB(A).
Application
Target Systems:
Automotive: Hypoid axles, manual transmissions (API GL-5/MT-1).
Industrial: Cement mill reducers, mining conveyors, wind turbine gearboxes (ISO 12925-1 CKD/CKJ).
Recommended Dosage
Performance Level | Dosage (WT%) |
GL-5 | 4.2 |
GL-4 | 2.1 |
Heavy load | 1.6 |
Medium load | 1.2 |
Characteristics
Item | Typical Value | Test Method |
Appearance | Brown liquid | Visual |
Density (20°C) kg/m | Report | GB/T1884 |
Flash point (COC) ℃ | 100 | GB/T3536 |
Water,m% | 0.03 | GB/T260 |
Mechanical Impurities,m% | 0.03 | GB/T511 |
Sulfur,m% | 30 | SH/T0303 |
Phosphorus,m% | 1.2 | SH/T0296 |
Nitrogen,m% | 0.2 | SH/T0224 |
Packaging & Storage
Packaging: 200L steel drums or 1,000 kg IBC totes.
Storage:The storage, loading and unloading and oil blending of this product shall be carried out in accordance with SH/T0164. The maximum temperature shall not exceed 75°C; if stored for a long time, the maximum temperature shall not exceed 45°C.
Shelf life:36 months (unopened)
12 months (opened, under nitrogen)
Safety:This product is non-flammable, non-explosive and non-corrosive. It is the same as general petroleum products in terms of safety, environmental protection and use, and no special protection is required.
Why Choose T4201A?
OEM Validated: Exceeds ZF FVNS-2 (axle efficiency) and Flender A.01.01 (wind turbine micropitting) specifications.
Eco-Adaptability: Bio-degradable components available for environmentally sensitive zones (ISO 15380).
Synthetic Optimization: 25% lower treat rate required in PAO/PAG base oils versus mineral oils.
Technical Support & Samples
Formulation Guidance:
For electric vehicle reduction gears: Reduce sulfur to 0.8% + add 0.5% conductive agent (enhances e-motor cooling).
In sub-zero arctic operations (–45°C): Blend with PAO base oil + 1.2% polymethacrylate pour depressant.
Contact us for test reports and formulation guidance.
✉️ Email:jzsrunda@163.com
