COUNTROSE CT020 - CT033

Description
Water Lubricated Shaft Bearings
 
CT020-CT033 - Imperial Series - Non-Metallic Shell - Phenolic Shell - Polyurethane
 
Countrose offers an additional service to other manufacturers in the fact that they offer two different types of elastomeric lined bearings, polyurethane and nitrile rubber.
 
Polyurethane is a very tough, highly abrasion resistant elastomeric material. Its excellent physical properties allow it to operate at loads beyond that of other elastomers, whilst its high resilience and abrasion resistance make it ideally suited to the toughest working environments. Polyurethane is slightly absorbent and, when immersed in water, it will swell a small amount until equilibrium is reached. The bearings supplied by Countrose are designed with initial clearances to cater for the dimensional movements caused by changes in temperature and water content.
 
Nitrile rubber is softer and has slightly lower physical properties than polyurethane. Generally, nitrile has a lower load capacity and is less abrasion resistant. It is resistant to grease and oil and is dimensionally stable in water, allowing tighter clearances.
 
Under most normal conditions polyurethane and nitrile rubber lined bearings have been found to perform equally well, displaying the same wear rates and giving a similar co-efficient of friction under lubrication. However, where the vessel is operating in abrasive conditions, for example in shallow water containing sand or grit, polyurethane has proven to far outlast nitrile. In contrast, where vibration may occur in the shaft caused by misalignment, nitrile has proven to have superior noise dampening properties than polyurethane, because it is a softer material.
 
Countrose bearings are generally produced with straight flutes as, in most applications, the greater open flow area reduces the incidence of blockage. However, we can also offer non-standard bearings with special flute designs to suit the criteria of different applications, including where spiral flutes, either right or left hand start, are required.
Product Name Part Number Stock Price Qty
Shaft Dia. 4 1/4 Shell Dia. 5 1/2 Length 17 CT020 Out of stock $1,488.65
Shaft Dia. 4 1/4 Shell Dia. 5 1/4 Length 17 CT020/2 Out of stock $1,276.01
Shaft Dia. 4 3/8 Shell Dia. 5 3/4 Length 17 1/2 CT021 Out of stock $1,559.49
Shaft Dia. 4 1/2 Shell Dia. 5 1/2 Length 18 CT022 Out of stock $1,559.49
Shaft Dia. 4 1/2 Shell Dia. 5 5/8 Length 18 CT022/2 Out of stock $1,630.46
Shaft Dia. 4 1/2 Shell Dia. 5 3/4 Length 18 CT022/3 Out of stock $1,630.46
Shaft Dia. 4 5/8 Shell Dia. 6 1/8 Length 18 1/2 CT023 Out of stock $1,843.11
Shaft Dia. 4 3/4 Shell Dia. 6 1/8 Length 19 CT024 Out of stock $2,055.76
Shaft Dia. 4 3/4 Shell Dia. 6 Length 19 CT024/1 Out of stock $1,984.92
Shaft Dia. 4 7/8 Shell Dia. 6 1/8 Length 19 1/2 CT025 Out of stock $2,197.56
Shaft Dia. 5 Shell Dia. 6 1/8 Length 20 CT026 Out of stock $2,233.11
Shaft Dia. 5 Shell Dia. 6 1/2 Length 20 CT026/2 Out of stock $2,303.95
Shaft Dia. 5 1/4 Shell Dia. 6 3/4 Length 21 CT027 Out of stock $2,729.24
Shaft Dia. 5 1/4 Shell Dia. 7 Length 21 CT027/2 Out of stock $2,871.04
Shaft Dia. 5 3/8 Shell Dia. 6 3/4 Length 21 1/2 CT028 Out of stock $2,906.46
Shaft Dia. 5 3/8 Shell Dia. 7 Length 21 1/2 CT028/2 Out of stock $2,977.30
Shaft Dia. 5 1/2 Shell Dia. 7 Length 22 CT029 Out of stock $3,331.76
Shaft Dia. 5 5/8 Shell Dia. 7 Length 22 1/2 CT030 Out of stock $3,473.57
Shaft Dia. 5 3/4 Shell Dia. 7 Length 23 CT031 Out of stock $3,544.41
Shaft Dia. 5 7/8 Shell Dia. 7 1/2 Length 23 1/2 CT032 Out of stock $3,615.25
Shaft Dia. 6 Shell Dia. 7 1/2 Length 24 CT033 Out of stock $3,686.21



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