FENNER WEDGE, V-BELT & TAPPER LOCK PULLEY These drives cater for power capacity up to 400 Kw at 1.440 rpm with a selection of ratios which will give within 3% of the required design speed. Standart belt section SPZ, SPA, SPB, SPC, 8V or Delta, Z, A, B, C, and D are available with FENNER PULLEY SPA 1 GROOVE FENNER PULLEY SPA 2 GROOVE FENNER PULLEY SPA 3 GROOVE FENNER PULLEY SPA 4 GROOVE FENNER PULLEY SPA 5 GROOVE FENNER PULLEY SPA 6 GROOVElenghts up to 15.200 mm