Rubber bearings for propeller shafts of marine vessels and impeller shafts of pumps. Smooth rubber surface, when lubricated with water matches the extremely low friction of oil lubricated metal bearings like ball bearings. To this inherent property of rubber other essential bearing qualities are added by skillful engineering and processing. Bearings are resistant to wear, corrosion and swelling in sea water. They absorb shock and vibration. Their grooves are designed for optimum water flow to cushion the shaft. They are tough enough to meet the load and their strong bonding is fail-safe. In the manufacture of bearings U.S. Navy specifications are followed as standard. |
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OUR RANGE
MARINE & INDUSTRIAL RUBBER BEARINGS
with
BRASS SHELL
or
FIBRE REINFORCES PHENOLIC SHELL
for
SHAFTS OF 50 mm to 200 mm Dia
in
CYLINDRICAL OR FLANGED SHELLS
with
FLUTED OR SPIRAL GROOVES
and
CIRCULAR OR POLYGONAL BEARING SURFACE
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| Outer Shell |
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Naval brass B.S. 2871 |
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Resistant to corrosion in Sea water and Oils |
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Rubber Lining |
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Nitrile Rubber-Hardness 70° to 80° Shore A. |
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Resistant to Sea water and Oils |
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Resistant to wear |
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Absorbs shock and Vibration |
|
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Bonding Agent |
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Chemlock 205-220 system for LORDS – U.S.A. |
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Bond strength>120/bs/sq.in |
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Process |
Injection moulding at 2000 PSI pressure and 160°c temperature |
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Machining |
I.D. and O.D. are ground to clearances & tolerances given in table |
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Service Temperature |
+4°c to +70°c |
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Load Capacity |
35 Lbs per sq. in. |
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Water Flow |
7.5 gallons per sq. in. |
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Unlike paper reinforced phenolic shells fibre reinforced rubber shells are unique because |
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Like bras shell bearings they are tough but elastic. |
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They get compressed into the tube but expands to circular shape and firmly grips inside |
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Preventing rotation |
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They are resistant to swelling in sea water |
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They are hard but not brittle. |
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They do no break, bend or get dented when hammered or dropped. |
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60% Lighter than brass bearings in weight. |
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Easy to extract and replace. |
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Machineable like brass. |
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Prevents electrolytic corrosion. |
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Service life equal to brass bearing |
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Economical in comparison with brass shell bearing. |
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Matches brass shell bearings in all other features |
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Sr. No. |
Shaft Diameter |
Outer Diameter |
Bush full Length |
Bush half Length |
Brass Shell Thickness |
Phenolic Shell Thickness |
1 |
40 |
55 |
160 |
78 |
3 |
4 |
2 |
45 |
65 |
180 |
88 |
3 |
5 |
3 |
50 |
70 |
200 |
98 |
3 |
5 |
4 |
55 |
7 |
220 |
108 |
3 |
5 |
5 |
60 |
80 |
240 |
118 |
3 |
5 |
6 |
65 |
85 |
260 |
128 |
3 |
5 |
7 |
70 |
90 |
280 |
138 |
3 |
5 |
8 |
75 |
95 |
300 |
148 |
3 |
5 |
9 |
80 |
100 |
320 |
158 |
3 |
5 |
10 |
85 |
105 |
340 |
168 |
3 |
5 |
11 |
90 |
110 |
360 |
178 |
3 |
5 |
12 |
95 |
115 |
380 |
188 |
3 |
5 |
13 |
100 |
125 |
400 |
198 |
4.75 |
6 |
14 |
105 |
130 |
420 |
208 |
4.75 |
6 |
15 |
110 |
135 |
440 |
218 |
4.75 |
6 |
16 |
115 |
145 |
460 |
228 |
4.75 |
7 |
17 |
120 |
155 |
480 |
238 |
6.25 |
7 |
18 |
125 |
165 |
500 |
248 |
6.25 |
8 |
19 |
130 |
170 |
520 |
258 |
6.25 |
8 |
20 |
135 |
170 |
540 |
268 |
6.25 |
8 |
21 |
140 |
180 |
560 |
278 |
6.25 |
9 |
22 |
145 |
180 |
580 |
288 |
6.25 |
9 |
23 |
150 |
190 |
600 |
298 |
6.25 |
9 |
24 |
155 |
190 |
620 |
308 |
6.25 |
9 |
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|
 |
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Sr. No. |
Shaft Diameter |
Outer Diameter |
Bush Length |
Brass Shell Thickness |
Phenolic Shell Thickness |
1 |
2 |
3 |
8 |
1/8 |
3/16 |
2 |
2 1/8 |
3 1/8 |
8 1/2 |
1/8 |
3/16 |
3 |
2 1/4 |
3 1/8 |
9 |
1/8 |
3/16 |
4 |
2 1/4 |
3 3/8 |
9 |
1/8 |
3/16 |
5 |
2 3/8 |
3 3/8 |
9 1/2 |
1/8 |
3/16 |
6 |
2 1/2 |
3 3/8 |
10 |
1/8 |
3/16 |
7 |
2 3/4 |
3 3/8 |
10 1/2 |
1/8 |
3/16 |
8 |
2 7/8 |
3 3/4 |
11 1/2 |
1/8 |
3/16 |
9 |
3 |
3 3/4 |
12 |
1/8 |
3/16 |
10 |
3 |
4 |
12 |
1/8 |
3/16 |
11 |
3 1/8 |
4 1/4 |
12 1/2 |
1/8 |
3/16 |
12 |
3 1/4 |
4 |
13 |
1/8 |
3/16 |
13 |
3 3/8 |
4 1/2 |
13 1/2 |
1/8 |
3/16 |
14 |
3 1/2 |
4 1/4 |
14 |
1/8 |
3/16 |
15 |
3 5/8 |
4 1/2 |
14 1/2 |
1/8 |
3/16 |
16 |
3 3/4 |
4 1/2 |
15 |
1/8 |
3/16 |
17 |
3 7/8 |
5 1/4 |
15 |
3/16 |
1/4 |
18 |
4 |
5 |
16 |
3/16 |
1/4 |
19 |
4 1/2 |
5 1/4 |
16 1/6 |
3 1/16 |
1/4 |
20 |
4 1/2 |
5 1/2 |
18 |
3 1/16 |
1/4 |
21 |
5 |
6 1/8 |
20 |
1/4 |
5/16 |
22 |
5 |
6 1/2 |
20 |
1/4 |
5/16 |
23 |
5 1/2 |
6 3/4 |
22 |
1/4 |
5/16 |
24 |
5 |
7 1/2 |
24 |
1/4 |
5/16 |
25 |
6 1/8 |
7 1/2 |
25 |
1/4 |
5/16 |
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