HEAVY DUTY GREASE

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-20/TORQ LI-1500 is resistant to ageing and protects reliably against corrosion.

Application

SYG-20/TORQ LI-1500 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 a heavy-duty grease with a high base oil viscosity and excellent antiwear properties, such as a grease like SYG-20/TORQ LI-1500. This grease is also suitable for the lubrication of pivoting bearings and plain bearings

Application notes 

The ambient temperature should be ≥ 15 °C when it is applied with an automatic greasing pump

Typical Properties

Parameters	Test Method	Specifications
NLGI grade	DIN 51818	1
Density at 20 °C
Worked penetration,	DIN ISO 2137	25 °C,
Speed factor, mm/min		100 000
Colour - APHA max.	ASTM D- 1209	BLACK
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 31312 A , room temperature, 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, s, 72 NBR 902 ,168h/ 100°C,change in volume		< 10 %
Compatibility with elastomers, 72 NBR 902 ,168h/ 100°C, hardness (Shore A)		approx. -5
TIMKIN OK-load,lbs	ASTM D 2509	45
FZG A/2,76/50 –damage load step	DIN 51354[LLS]	>12
Temperature-constancy of lubricant film	+250