Flexible Shaft Couplings
R&D marine flexible shaft couplings
Contoured flexible disc molded in tough yet resilient polyurethane, to absorb vibrations, noise and propeller thrust.
Provides electric isolation of the shaft line.
Supplied with bolts and nuts ready for installing.
For engines up to 230 HP / 100 rpm @ propeller shaft.
Wide range of adaptor plates and spacers available upon request.
Formula to calculate power of coupling required @ 100 rpm: 100 x P x R / n
Example:
Motor power (P): 120 HP – Rotation speed (n): 2000 rpm
Reduction ratio (R): 2
Power required @ 100 rpm = 12 HP
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Gearbox Flange Dimensions |
Flexible Coupling Details |
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Ref. |
Compatibility |
Diameter |
Bolt |
Hole |
Bolt Pitch |
Register |
Diameter |
Length |
Bolt dia. |
Capacity |
|
DR014 |
BW, PRM, ZF-Hurth, Technodrive |
101.6 (4.00) |
4 |
10.0 |
82.55 |
63.5 |
114.3 |
32.5 |
M10 |
3 HP |
|
DR007 |
Volvo |
101.6 (4.00) |
4 |
10.0 |
80.0 |
60.0 |
114.3 |
43.7 |
M10 |
3 HP |
|
DR002 |
Yanmar |
101.6 (4.00) |
4 |
10.0 |
78.00 |
50.0 |
114.3 |
32.5 |
M10 |
3 HP |
|
DR001 |
BW, PRM, ZF-Hurth, Technodrive |
101.6 (4.00) |
4 |
10.0 |
82.55 |
63.5 |
114.3 |
32.5 |
M10 |
5 HP |
|
DR020 |
Volvo |
101.6 (4.00) |
4 |
10.0 |
80.0 |
60.0 |
114.3 |
32.5 |
M10 |
5 HP |
|
DR043 |
Yanmar |
101.6 (4.00) |
4 |
10.0 |
78.0 |
50.0 |
114.3 |
32.5 |
M10 |
5 HP |
|
DR005 |
Paragon |
101.6 (4.00) |
4 |
9.7 |
82.55 |
66.7 |
114.3 |
34.5 |
3/8 UNF |
7 HP |
|
DR004 |
BW, PRM, ZF-Hurth |
101.6 (4.00) |
4 |
10.0 |
82.55 |
63.5 |
114.3 |
35.6 |
M10 |
8 HP |
|
DR044 |
BW, PRM, ZF-Hurth, Volvo |
127.0 (5.00) |
4 |
11.2 |
107.9 |
63.5 |
143.0 |
45 |
7/16 UNF |
8 HP |
|
DR012 |
Yanmar |
127.0 (5.00) |
4 |
10.0 |
100.0 |
65.0 |
143.0 |
45.0 |
M10 |
10 HP |
|
DR009 |
BW, PRM, ZF-Hurth |
127.0 (5.00) |
4 |
11.2 |
107.9 |
63.5 |
143.0 |
45.0 |
7/16 UNF |
13 HP |
|
DR010 * |
Volvo |
127.0 (5.00) |
4 |
11.2 |
107.9 |
63.5 |
143.0 |
45.0 |
7/16 UNF |
13 HP |
|
DR029 |
BW, ZF-Hurth, Volvo |
127.0 (5.00) |
4 |
11.2 |
107.9 |
63.5 |
143.0 |
52.4 |
7/16 UNF |
20 HP |
|
DR003 ** |
BW, PRM, ZF-Hurth, Twin Disc |
146.0 (5.75) |
6 |
12.7 |
120.6 |
76.2 |
152.4 |
47.5 |
1/2 UNF |
20 HP |
|
DR006 |
Twin Disc, ZF-Hurth |
146.0 (5.75) |
6 |
16.0 |
120.6 |
76.2 |
152.4 |
47.5 |
1/2 UNF |
20 HP |
|
DR025 ** |
BW, PRM, ZF-Hurth, Twin Disc |
146.0 (5.75) |
6 |
12.7 |
120.6 |
76.2 |
152.4 |
49.8 |
1/2 UNF |
28 HP |
|
DR026 |
Twin Disc |
146.0 (5.75) |
6 |
16.0 |
120.6 |
76.2 |
152.4 |
49.8 |
1/2 UNF |
28 HP |
|
DR032 ** |
BW, PRM, ZF-Hurth, Twin Disc |
146.0 (5.75) |
6 |
12.7 |
120.6 |
76.2 |
152.4 |
55.4 |
1/2 UNF |
37 HP |
|
DR033 |
Twin Disc, ZF-Hurth |
146.0 (5.75) |
6 |
16.0 |
120.6 |
76.2 |
152.4 |
55.4 |
1/2 UNF |
37 HP |
|
DR017 |
Twin Disc |
184.2 (7.25) |
6 |
19.0 |
152.4 |
95.2 |
190.5 |
60.7 |
5/8 UNF |
40 HP |
|
DR040 |
PRM |
184.2 (7.25) |
6 |
16.0 |
152.4 |
95.2 |
190.5 |
63.3 |
5/8 UNF |
55 HP |
|
DR022 |
Twin Disc |
228.6 (9.0) |
8 |
12.7 |
190.5 |
152.4 |
222.2 |
44.5 |
1/2 UNF |
65 HP |
* DR010 is supplied with 70mm screws, DR009 with 57mm screws.
** TP384: 54mm spacer for DR003, DR025 & DR032 mounting on IRM220A & TP1248 for Twin Disc 502.
Fuel Filters & Fittings
Multipass Fuel Polisher
Water-in-fuel Detection
Fuel & Exhaust Lines
Flexible Shaft Couplings
Split Half Couplings
Propeller Shaft Bearings
Fuel Level Senders and Gauges
Makepoint Switch
