Couplings are used to connect drive shafts together, and we supply a full range of rigid, HRC, jaw and these inner facing taper bore/pilot bored F/B type tyre drive coupling assemblies.

Tyre couplings are more flexible and can handle much more misalignment and torsional flexibility than the rigid type coupling assemblies. These tyre drives don't need lubrication and are highly elastic.

Different Letter Combinations for Different Configurations

The different letter combinations tell you which side the tapered locking bush is inserted from. These assemblies are F/B - the tapered locking bush is inserted from the flange, or inner side, and the other flange is supplied with a nominally sized pilot bore.

For reference, the other configurations are:

F/F - the tapered locking bush is inserted from the flange, or inner side F/H - the tapered locking bush is inserted from the flange, or inner side, and the other from the hub or outer side H/H - the tapered locking bush is inserted from the hub or outer side B/B - these are supplied with nominally sized pilot bore flanges H/B - the tapered locking bush is inserted from the hub or outer side and the other flange is supplied with a nominally sized pilot bore

Inner Facing Taper Bore/Pilot Bored F/B Type Tyre Drive Coupling Assemblies

The Dunlop Dunflex range comes as a complete coupling assembly, although you will need to source the tapered locking bushes separately as they obviously need to match the shaft size you are using in your application.

Inner facing taper bore/pilot bored F/B type tyre drive coupling assembly units can deal with maximum simultaneous misalignment in all planes yet avoid imposing excessive loads on the adjacent bearings.

The assembly has two steel flanges with a matched tyre element. In the F/B type, the taper bore's larger diameter is on the same side as the tyre clamping flange - the B type comes with a nominally sized pilot bore flange. There is a look-up engineering data sheet with each individual product which tells you which coupling size relates to which bore size. Bore sizes range from 25mm to 100mm (1" to 4").

The compound used is natural rubber, which will withstand ambient temperatures from -50 C to + 50 C. The insert has superb shock absorption and can reduce both torsional oscillation and vibration.

When you look up the part number, you'll see a list of part/size numbers - for example, "F40F+F40B+F40T" - and you can select the size you need. Each listing for inner facing taper bore/pilot bored F/B type tyre drive coupling assembly units also has a handy quick link to the tapered locking bush page.

You can buy with confidence, knowing that Simply Bearings offers an unbeatable no-quibble 90-day money-back guarantee if you cannot use the bearing or have ordered the wrong item.