The water-lubricated bearing are made with an outer bearing of brass (OT63) or technoplastic polyamide
resin that has the advantage of neutralising electrolytic corrosion.
The inside of the bearings are coated with black nitrile rubber with the following characteristics:
The bearings are lubricated with water that forms a very thin film between the shaft and rubber of the bearings, and reduces the coefficient of friction to very low values.
Never run dry because a high temperature would immediately damage the bearing.
Make sure the rubber does not come into contact with harmful substances, such as grease or lubricating oil.
The circulation water contributes to evacuating the heat from the inner surface of the bearing, whose temperature must never exceed 50/60°C.
Therefore, it is necessary to:
Ø A | Ø B | C | ||
mm | inch | mm | inch | mm |
20,00 | 1" 1/4 | 31,75 | 3" | 76,20 |
22,00 | 1" 1/4 | 31,75 | 3" | 76,20 |
25,00 | 1" 1/4 | 31,75 | 4" | 101,60 |
28,00 | 1" 5/8 | 41,42 | 4" 1/2 | 114,30 |
30,00 | 1" 3/4 | 44,45 | 5" | 127,00 |
32,00 | 1" 3/4 | 44,45 | 5" | 127,00 |
35,00 | 1" 7/8 | 47,62 | 5 1/2" | 139,70 |
38,00 | 2" | 50,80 | 152,00 | |
40,00 | 2" 1/8 | 53,97 | 160,00 | |
45,00 | 2" 3/8 | 60,32 | 7" | 177,80 |
50,00 | 2" 5/8 | 66,67 | 8" | 203,20 |
55,00 | 3" | 72,20 | 9" | 228,60 |
60,00 | 3" 1/4 | 82,55 | 9" 1/2 | 241,30 |
65,00 | 3" 3/8 | 85,72 | 10" 1/2 | 266,70 |
70,00 | 3" 3/4 | 95,25 | 11 | 279,40 |
75,00 | 4" | 101,60 | 12" | 304,80 |
80,00 | 4" | 101,60 | 12" | 304,80 |
85,00 | 4" 1/2 | 114,30 | 13" 1/2 | 342,90 |
90,00 | 4" 1/2 | 114,30 | 14" | 355,56 |
95,00 | 4" 1/2 | 114,30 | 380,00 | |
100,00 | 5" 1/4 | 133,35 | 15" 3/4 | 400,00 |
105,00 | 5" 1/4 | 133,35 | 16" | 406,40 |
110,00 | 5" 1/2 | 139,70 | 17" | 431,80 |
115,00 | 5" 1/2 | 139,70 | 18" | 457,20 |
120,00 | 6" 1/8 | 155,57 | 19" 1/2 | 482,60 |
125,00 | 6" 1/8 | 155,57 | 20" | 508,00 |
Italian Propellers is a company that designs and manufactures propellers, rudders, propeller shafts,
bushings and brackets, and has over 35 years of experience in the marine industry
Our production range includes a range of 3-blade propellers, 4-blade propellers, 5-BLADES propellers, propeller blades 6
The features of our rudders for boats arise from the results of particular experiences hydrodynamic
Are performed with standard C45 material. On request we can produce flanges with Zinc Plating White 25 micron
Repairs and revisions are carried out exclusively at the headquarters of Telgate, Bergamo (Italy).
Our propeller shafts are manufactured using advanced processing technology, ensuring quality and reliability
Our tubes per carton can be in the following materials: OTS, OT63, ALUMINIUM, FE510, Others on requesta
The Propeller Shaft Brackets are manufactured according to the technical requirements shipyards
ITALIAN PROPELLERS is responsible for the supply of spare parts for a variety of Riva yachts.
Learn to boats which we have spare parts »