Bullflex Type Flexible Coupling By Vetus & Maxwell Marine India...

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Product Description

The Vetus Bullflex Coupling has been specially designed to ensure optimum damping of vibration, with excellent ease of installation.

Its pre-tensioned rubber element ensures low-noise and vibration-free transmission, without backlash between the engine and the propeller shaft.

Another strong point of the Bullflex coupling is the excellent alignment; even with a misalignment of 2°, the shaft will remain perfectly centered.

ADVANTAGES OF THE VETUS BULLFLEX COUPLING:

Very high flexibility
Optimum damping of vibrations
Secured against shearing off (axially and radially)
Misalignment of up to 2° permissible
Excellent centering of the shaft, allowing for high shaft revolutions, even at 2° misalignment
The shaft will remain centered even in reverse gear
Possibility to remove the centering ring
Built-in thrust damper
Non-tapered clamping hub, for perfect centering and easy assembly/dismantling

Which Size Bullflex Coupling do I need?
The calculation is fairly simple - to determine the HP/100 r.p.m ratio figure the equation is:
(Engine HP x 100) / The maximum speed of the propeller shaft.

TYPE	DIN 6270 B = PLEASURE CRAFT Kw (HP)/100 SHAFT RPM	DIN 6270 A = COMMERCIAL CRAFT Kw (HP)/100 SHAFT RPM	MAX TORQUE Nm		MAX RPM AT ZERO MISALIGNMENT	MAX RPM AT 2° MISALIGNMENT	D	L	d	d
BULLFLEX	DIN 6270 B = PLEASURE CRAFT Kw (HP)/100 SHAFT RPM	DIN 6270 A = COMMERCIAL CRAFT Kw (HP)/100 SHAFT RPM	DIN 6270 B	DIN 6270 A	MAX RPM AT ZERO MISALIGNMENT	MAX RPM AT 2° MISALIGNMENT	MM	MM	MM	INCH
1	0.8 (1.1)	0.5 (0.7)	75	45	7000	3500	100	85	20,25	1
2	1.6 (2.1)	0.9 (1.3)	150	90	6500	3250	120	120	20,25	1
4	3.1 (4.3)	2.1 (2.8)	300	200	6000	3000	150	152	25,30	1
8	6.3 (8.5)	4.3 (5.8)	600	410	5000	2500	170	166	30,35,40	1.25,1.50
12	9.8 (12.8)	7.1 (9.6)	900	540	4000	2000	200	177	35,40,45	1.50,1.75
16	12.6 (17.1)	9.8 (13.3)	1200	935	4000	2000	205	197	40,45,50	1.50,1.75,2
32	23.0 (31.3)	18.6 (25.3)	2200	1780	3600	1800	260	263	40,50,60,70	1.75,2