From design to production, a lot of data need to be displayed on the chart, but sometimes we don’t know the meaning of abbreviated letters. Today we’ll sort them out. The code meaning of these abbreviated letters in the engineering drawing of belt design

(1) W — bandwidth;
(2) A0 — represents the length of the bottom of the slot;
(3) B0 — indicates the bottom width of the slot;
(4) D — diameter of positive circular side hole;
(5) D1 — diameter of middle hole;
(6) D2 — diameter of elliptical side hole;
(7) E — the distance (width) from the horizontal bisector of the round side hole to the upper boundary of the round side hole;

(8) F — distance from half of the whole slot to the horizontal line of the positive circular side hole;
(9) K0 — depth of slot (second level depth);
(10) K1 — the first level depth of the slot;
(11) P0 — distance between vertical bisectors of two adjacent side holes;
(12) P — distance between two phases of the slot and the bisector of the whole slot;
(13) P2 — refers to the distance between the entire slot bisector of any slot and the vertical bisector of adjacent side holes on both sides;
(14) T — thickness of material strip;
(15) T2 — represents the bottom thickness of the strip after forming.