We methodically model the broad-band Suzaku spectra of a small sample of six ’ bare ’ Seyfert galaxies : Ark 120 , Fairall 9 , MCG-02-14-009 , Mrk 335 , NGC 7469 and SWIFT J2127.4+5654 .
The analysis of bare Seyferts allows a consistent and physical modelling of AGN due to a weak amount of any intrinsic warm absorption , removing the degeneracy between the spectral curvature due to warm absorption and the red-wing of the Fe K region .
Through effective modelling of the broad-band spectrum and investigating the presence of narrow neutral or ionized emission lines and reflection from distant material , we obtain an accurate and detailed description of the Fe K line region using models such as laor , kerrdisk and kerrconv .

Results suggest that ionized emission lines at 6.7 keV and 6.97 keV ( particularly Fe XXVI ) are relatively common and the inclusion of these lines can greatly affect the parameters obtained with relativistic models i.e .
spin , emissivity , inner radius of emission and inclination .
Moderately broad components are found in all objects , but typically the emission originates from tens of r _ { g } , rather than within < 6 r _ { g } of the black hole .
Results obtained with kerrdisk line profiles suggest an average emissivity of q \sim 2.3 at intermediate spin values with all objects ruling out the presence of a maximally spinning black hole at the 90 % confidence level .
We also present new spin constraints for Mrk 335 and NGC 7469 with intermediate values of a = 0.70 ^ { +0.12 } _ { -0.01 } and a = 0.69 ^ { +0.09 } _ { -0.09 } respectively .