Synthetic gear oil for heavy-duty protection.
MILES SYN-GEAR S HD is a premium heavy-duty gear lubricant formulated for high-load, high-temperature, and severe-service applications. Enhanced with extreme-pressure (EP) additive technology, it provides excellent lubricity, high film strength, and dependable protection against wear under demanding operating conditions.
Its advanced formulation is designed to provide long fluid life and reliable performance while helping control deposits, resist water contamination, and protect gears and components against wear, rust, and corrosion. This can help reduce maintenance requirements, operating costs, and equipment downtime.
KEY FEATURES & BENEFITS
Excellent Lubricity – Helps reduce friction and promote smooth, efficient gear operation.
Very High Film Strength – Provides a strong, durable lubricating film under heavy loads and severe operating conditions.
Enhanced Extreme-Pressure (EP) Protection – Helps protect heavily loaded gear surfaces against wear and damage.
Outstanding Carbon & Varnish Control – Helps minimize deposits and maintain equipment cleanliness.
Excellent Fluid Life – Helps resist lubricant degradation and supports extended service intervals.
Excellent Dispersant Properties – Helps control contaminants and reduce deposit formation.
Enhanced Resistance to Water Contamination – Helps maintain reliable lubrication performance in environments where moisture or water contamination may occur.
Excellent Wear, Rust & Corrosion Protection – Helps protect gears and metal components against wear, rust, and corrosion.
Reduced Maintenance Costs & Downtime – Long fluid life and dependable protection can help reduce maintenance frequency and unplanned downtime.
Non-Toxic / Non-Hazardous – Designed for safer handling when used in accordance with applicable requirements.
TYPICAL PROPERTIES
Lubrication Properties
SYN-GEAR S HD-100
SYN-GEAR S HD-150
SYN-GEAR S HD-220
SYN-GEAR S HD-320
SYN-GEAR S HD-460
SYN-GEAR S HD-680
Viscosity Index
121
145
171
190
199
205
Viscosity, cSt @ 40°C
106.2
138.5
200.1
290
415.0
650
Viscosity, cSt @ 100°C
13.2
18.0
27.0
39.5
54.5
78.8
Flash Point, °F
510
510
515
517
527
555
Auto-Ignition Point, °F
798
839
842
839
845
852
Pour Point, °F
-35
-35
-35
-20
-15
-15
Timken OK Load, kg
40
40
40
40
40
40
Copper Corrosion, 24 Hr
1b
1b
1b
1b
1b
1b
Demulsibility, 130°C, 30 Min
40/39/1
40/38/2
40/38/2
40/38/2
40/37/3
40/36/4
APPLICATIONS
MILES SYN-GEAR S HD is designed for heavy-duty industrial gear systems and other applications exposed to high loads, elevated temperatures, and severe operating conditions. The range of viscosity grades allows selection based on equipment requirements and operating conditions.
Available Grades: ISO VG 100, 150, 220, 320, 460, and 680.
Note: Typical properties are not specifications. Values may vary within normal manufacturing tolerances. Always consult the equipment manufacturer's recommendations to confirm the appropriate lubricant, viscosity grade, and EP requirements before use.
