Molykote BG-555 Low Noise Grease

Long-performance-life, wide-temperature-range, low-noise Grease

Features & benefits

• Wide service-temperature range

Applications

Suitable for use in bearings at elevated temperatures for long periods. Can greatly extend the intervals of grease repacking or bearing replacement.

Composition

• Technology: Ester
• Thickener: Lithium Complex

Available pack sizes

• 1 kg can

About this type of lubricant

A grease is a base oil held in a thickener, so it stays where it is put instead of draining away. The thickener (lithium, lithium complex, calcium sulfonate, polyurea or a clay) sets the upper service temperature and the water resistance; the base oil — mineral, PAO, ester, silicone or PFPE — sets the low-temperature behaviour and the chemical compatibility. Molykote greases add solid lubricants such as molybdenum disulfide, graphite or PTFE, which carry the load in the moments when the oil film is too thin to: start-up, shock load, slow oscillation.

How to choose

Match four things in order: the service temperature range, the speed and load, whether the point sees water or chemicals, and what the grease touches. Plastic and elastomer components rule out many mineral-oil greases; food-contact points need an H1-registered grade; slow, heavily loaded or oscillating joints are where the solid-lubricant content earns its cost. NLGI grade is consistency, not quality — a lower number is softer and pumps more easily, a higher number stays put in an open or vertical point. Never mix thickener types in the same point: incompatible thickeners can soften and run out.

How to order

Specify the pack size and, where more than one grade shares a name, the exact grade on the RFQ. Indus Hydraulics is an authorised distributor and quotes MOLYKOTE® from Dubai stock where the grade is held; less common grades ship to order. Our engineers will confirm the grade against your application and operating conditions before you commit.

Product data on this page is published by DuPont, the manufacturer of MOLYKOTE®. See the linked technical data sheet for full test conditions.