CASTROL Molub-Alloy 243 Arctic

Description

Molub-Alloy™ 243 Arctic Grease is intended for use in plain and anti-friction bearings operating in freezing

environments down to -65°F (-54°C). It is designed to meet the performance requirements of MIL-G-10924C

Specification.

For effective lubrication in very cold temperatures, a primary requirement of grease is that it remain soft and pliable,

especially in rolling element bearings. Stiff grease in anti-friction bearings can prevent rolling at start-up or allow

skidding during operation, possibly resulting in damage and early failure.

Of equal importance for greases in very cold regions is the ability to protect against corrosion. As temperatures

drop from daytime operation to overnight freezing, moisture from the air is precipitated an the cooling metal

surfaces. Bearings experiencing wide temperature fluctuations are particularly subject to corrosive attack.

Molub-Alloy 243 Arctic Grease fulfills these most difficult requirements as a truly multi-service grease for

transportation and industrial operations in very cold environments. Beyond the requirements of the Military

Specification, the anti-wear and load-carrying characteristics of this grease are fortified with a proprietary blend of

Molub-Alloy lubricating solids.

The high quality base oils and thickening system used in Molub-Alloy 243 Arctic Grease were selected for their

combined ability to maintain a good working consistency throughout a wide temperature range.

The product is inhibited against oxidation, and particularly against corrosion as a major hazard of the low

temperature service for which it was designed.

Also included, in complete dispersion, are metallic lubricating solids of suitable grade and particle size for antifriction bearings. Molub-Alloy lubricating solids are specially treated to improve their natural affinity for metal

surfaces.

The consistency of Molub-Alloy 243 Arctic Grease is slightly less than the NLGI Grade No. 2 required by the Military

Specification. Importantly, however, the apparent viscosity, or working consistency, at -65°F is well below the

maximum specified.

Application

May be used as a multi-service lubricant through the broad range suggested by MIL-G-10924C as from -65°F (-

54°C) to 225°F (79°C).

Applications include journal bearings as well as antifriction bearings found in pumps, motors, conveyors, etc.

Common applications are in transportation and material handling equipment, whether in arctic regions or in

refrigerated areas in general industry.

Applications at low temperatures should be made manually. Automatic dispensing equipment may be used at

higher temperatures, as with greases of similar consistency. If automatic dispensing below 0°F (-18°C) is

necessary, or extreme pressure characteristics are required, CASTROL Molub-Alloy 333 EP Light Arctic Grease

may be suggested. (See Notes)

Advantages

Maintains good working and staying consistency over suggested use range.

Excellent protection against corrosion in presence of condensing moisture.

Substantial increase in the service life of both parts and lubricant will result from the proper establishment of a

protective layer of Molub-Alloy solids. These lubricating solids can effectively increase the load bearing area, thus

reducing unit pressures and wear.

Realistic energy savings are possible through a reduction in peak power demand during cold startup.

Overall savings are derived from the above and result from less labor and downtime, smoother, more efficient

operation with longer parts life, and extended lubrication cycles.