Vetus Flexible Couplings


Why do we offer no less than three types of Vetus flexible coupling?

The answer is that, notably from the after-market, there is still a huge demand for replacement flexible couplings, for units already in service, types 6 and 10 as well as the Uniflex models. The Bullflex elastic couplings represent the latest, state-of-the-art technology and are therefore recommended for new installations.

Bullflex

The Vetus Bullflex flexible coupling has the following advantages:

  • very high flexibility
  • optimum damping of vibrations
  • secured against shearing off (axially and radially)
  • misalignment of 2% permissable
  • excellent centering of the shaft, allowing for high speed revolutions even at 2 degrees misalignment
  • the shaft will remain centred even in reverse gear
  • possibility to remove the centering ring
  • built-in thrust damper
  • non-tapered clamping hub, for perfect centering and easy assembly / disassembly
Bullflex model Shaft sizes HP / 100 shaft RPM
(Leisure)
HP / 100 shaft RPM
(Commercial)
Max RPM at
2 degrees misalignment
1 20mm / 25mm / 1.00" 1.1 0.7 3500
2 20mm / 25mm / 1.00" 2.1 1.3 3250
4 25mm / 30mm / 1.00" 4.3 2.8 3000
8 30mm / 35mm / 40mm / 1.25" / 1.50" 8.5 5.8 2500
12 35mm / 40mm / 45mm / 1.5" / 1.75" 12.8 9.6 2500
16 40mm / 45mm / 50mm / 1.5" / 1.75" / 2.00" 17.1 13.3 2000
32 45mm / 50mm / 60mm / 2.00" 31.3 25.3 1800

Uniflex

The Vetus Uniflex flexible coupling is a predecessor to the Bullflex and has similar features, although has a different method of connection to the shaft which may suit existing installations.

Uniflex model Shaft sizes HP / 100 shaft RPM
(Leisure)
HP / 100 shaft RPM
(Commercial)
Max RPM at
2 degrees misalignment
12 20mm / 25mm / 30mm 2.8 5.6 1500
16 30mm / 35mm / 40mm 5.6 5 1500

Type 6 / Type 10

The Vetus Type 6 and Type 10 flexible couplings provide a cheaper alternative to the Bullflex, but the shaft must be aligned exactly. The Type 6 fixes to the shaft by means of a through-pin and the Type 10 by means of a tapered bore and keyway.

Model Shaft sizes HP / 100 shaft RPM
(Leisure)
HP / 100 shaft RPM
(Commercial)
Max RPM
Type 6 25mm / 30mm / 35mm 5.3 4.5 1500
Type 10 40mm / 45mm / 50mm 8.8 7.5 1500

Note: all specifications are subject to change without notice. Please contact us for details of prices and any further information, full details are available in the current Vetus catalogue which you can request online.


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