The Aqualube ranges of rubber-sleeved bearings are designed
for marine and industrial applications. The bearings feature a specially
formulated rubber and are molded into various shell materials. The rubber is an
extremely tough, chemical and oil resistant nitride, which offers outstanding
resistance to abrasion and wear, even in the most adverse conditions.
We stock a comprehensive range of standard brass shell
bearings, with tolerances suited for American shaft and strut standards, will
be stocked in shaft diameter sizes 1” through 3”. We can also quote, upon request,
an expanded range of bearings including:
• Sizes for shafting up to 10” in diameter.
• Metric sizes from 20mm through 260mm.
• Flanged, non-metallic shelled, and spiral fluted bearings.
Inquiries for the above are welcomed.
Principle of Operation:
Rubber and water make the perfect combination for a bearing
material and a lubricant.
The natural resilience of rubber gives the bearing its
shock, vibration and noise absorption properties. The shape of the Aqualube
bearing is the main reason for its success. Unlike many other bearings in the
market the Aqualube bearing strips are shaped in such a way that a hydrodynamic
water wedge is formed between shaft and bearing, even at very low shaft speeds.
Water is the perfect lubrication medium, particularly for
marine craft, because of its natural abundance, non-compressibility, cooling
properties, and low coefficient of friction when between bearing strip and
The water enters the bearing through the longitudinal
grooves and moves radically between the propeller shaft and the bearing face in
a thin lm. Once this lm,
Or wedge, has developed the shaft does not actually come
into contact with the bearing.