The Optibelt brand wedge groove disc for TB TB-SPB170/3 is a high-quality solid disc with an inner diameter of 85 mm, an outer diameter of 177 mm, and a width of 45 mm. Weighing 4.9 kg, it is robust and durable. The product model is 2 and it has 3 grooves. The suitable taper bush for this wedge groove disc is the 2517. The profile is 17 SPB XPB B. With this wedge groove disc, you will receive a reliable product for your technical requirements.