| What is the delivery time for standard Lineflex Offset Couplings? | Between 3 to 5 weeks from receipt of order depending on the exact specification. |
| How do I identify a Lineflex Offset Coupling? | Lineflex couplings normally comprise 3 equal diameter discs with connecting links.
There can be as fews as two links. The links are short. |
| What does the Lineflex Offset Coupling order code mean? |
E.g. LFK 134.160/4 A2-A7
LFK indicates the basic design.
134 indicates the overall length of the coupling measured across the outer faces of the outer discs
160 is the diameter of the discs (these are normally all the same).
/4 is the number of links joining each pair of discs.
A2 and A7 identify the form of interface with the transmission system.
A2 is an integral hub flange.
A7 is an integral split hub. |
| What is the maximum offset possible for the Lineflex Offset Coupling? |
Between 2 mm and 13 mm, depending on coupling size. |
| What is the efficiency of the Lineflex Offset Coupling? | The losses in the coupling are limited to bearing friction. Hence efficiency is 98-99%. |
| Is the Lineflex Offset Coupling balanced? | There is no imbalance. The link system is always dynamically stable when used within the advised maximum range and speed. |
| What are the reactive forces on related components at maximum offset for Lineflex Offset Couplings? | The reactive forces for all conditions of offset are zero. All reactions are compensated within the coupling. The coupling transmits pure torque. |
| Does any phase displacement result during offset adjustment? | No, none. The fixed length links ensure true constant velocity of the Lineflex Offset Coupling at any condition of speed or load. Whatever conditions are applied at the input are seen at the output. |
| Can the Lineflex Offset Coupling run in the neutral position i.e. with shafts in line? | Yes. |
| Does the LFK Offset Coupling have any backlash? | The Lineflex Ccoupling provides a practically rigid connection.
Needle roller bearing tolerances mean there could theoretically be backlash equivalent to bearing clearance.
This normally so small it may be neglected.
If completely backlash freedom must be guaranteed additional links and bearing pre-load will compensate.
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| Does the LFK Offset Coupling have limits to transmitted power? | Load capacity is calculated from bearing capacity.
Standard couplings can run at up to 60 r/s. By special design higher speeds can be achieved.
Couplings capable of 45 000 Nm have been produced.
Maximum torque is dependent on the link and pin dimensions and bearing capacity.
No limit has yet been reached.
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| Can the Lineflex Offset Coupling accept angular misalignment? | Needle roller bearings can accept around 0.5 degree but angular displacement will contribute to reduced life and performance. It is therefore essential that good initial alignment is achieved.
The Lineflex Coupling is not a misalignment coupling and angular misalignment if present should be compensated with a good flexible coupling. See Inkoma Inkoflex IFE.
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| How do I connect the Lineflex Offset Coupling to the shaft/s? | A range of options including integral hubs and separable flanged hubs and split collar hubs is available.
Hub options incorporating shrink discs (Tension Bushes) are also available for keyless shaft connection.
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| Can the Lineflex Offset Coupling be tailored to my requirements? | Whilst quantity is clearly a factor in designing a customised coupling, there are many options. Sprockets, pulleys, cams and gears can be incorporated in the fixed outer disc of the coupling.
Couplings having limited offset or offsets greater than the catalogue values are possible.
Please send us a sketch of what you need!
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| What is the life of a Lineflex Offset Coupling? | We provide rated loads for lives of 1000, 5000, 10 000 and 20 000 operating hours.
If you require a longer life please submit your life requirement for us to calculate or select a suitable coupling.
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| Are all Lineflex Offset Couplings fitted with needle roller bearings? | Yes, all catalogue couplings have needle roller bearings. |
| Can Lineflex Offset Couplings be supplied in alternative materials? | Corrosion resistance, magnetic characteristics, oil and grease free operation, special fire or explosion risks can dictate materials used. Stainless steel and electroless nickel plating can be offered.
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| Can Lineflex Offset Couplings be fitted to vertical shafts? | Yes. Great care should be taken to avoid the coupling mass placing loads on the coupling bearings. |
