Product Description

This heavy-duty grease consists of a highly viscous mineral hydrocarbon oil (ISO VG 1500), special lithium soap and particularly effective EP/AW additives. It also contains solid lubricants (MoS2 and graphite) to ensure reliable operation under starved lubrication conditions. SYG-HD 1500 Li-GREASE is resistant to ageing and protects reliably against corrosion.

Applications

SYG-1500/HD-Li-GREASE was especially developed for large low-speed rolling bearings subject to high loads. It is typically applied to lubricate the bearings of rollers (spherical roller bearings) in roller presses, bowl mill and rotary crushers in the base material industry. The operating conditions of the roller bearings, i.e. 

·        Low speed, n = 10-30 rpm  

·        High load, P/C = 0.25 – 0.50. 

·        Bearing temperature approx. 50-70 °C  

·        Shock and vibration loads require heavy-duty grease with a high base oil viscosity and excellent anti-wear properties, such as grease

         like  SYG-HD 1500 Li-GREASE. This grease is also suitable for the lubrication of pivoting bearings and plain bearings 

Ø  Application notes 

The ambient temperature should be ≥ 15 °C when SYG-HD 1500 Li-GREASE is applied with an automatic greasing pump.  

Typical Properties

PARAMETERS	TESTMETHODS	SPECIFICATIONS
Color		Black
Density at 20 °C		approx. 0.92 g/cm³
Kinematic viscosity, 40 °C	ASTM D-445	approx.  1500 mm²/s
Kinematic viscosity,100°C	ASTM D-445	approx. 60 mm²/s
Drop point, DIN ISO 2176	DIN ISO 2176	>= 180 °C
Speed factor (n x dm)		approx. 100 000 mm/min
Testing of lubricating greases on FAG FE9 rolling bearing tester, speed: 3000 min-1, axial load: 1500 N,  temperature 150 °C, service life F50	DIN 51821	>= 100 h
Rolling bearing grease test FAG FE8, tapered roller bearing room temperature bearing 31312 A, 75 min-1 / 75kN,400 - 500h, rolling bearing wear.		18 mg
Rolling bearing grease test FAG FE8, tapered roller bearing 31312 A, 75 min-1 / 80kN, 80 °C, no running-in, 400 - 500 h, wear of rolling element,		<= 30 mg
Compatibility with elastomers, 72 NBR 902 ,168h/ 100°C,change in volume		< 10 %
Compatibility with elastomers, 72 NBR 902 ,168h/ 100°C, hardness (Shore A)		approx. -5