FreeCAD-library/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 2x1 ¼/README.md

Chain Sprockets ISO606 duplex 2" x 1 1/4" from z 8 to z 30

This folder contains the 3D models of the sprockets for ISO 606 chains duplex 2" x 1 1/4" with number of teeth ranging from z=8 to z=30.

The model is parametric and the values are contained in the spreadsheet Data. The parameters refer to the sprocket dimensions as in the drawing below:

Table of dimensions in millimeters:

P (Pitch)	Wc (Chain width)	Dr (Roller diameter)	Tr (Tooth radius)	Rw (Radius width)	Wt1 (Tooth width 1)	Wt2 (Tooth width 2)	z (Number of teeth)	De (External Diameter)	Dp (pitch diameter)	d (Hub diameter)	D (Hole diameter)	H (Total height)
50,8	30,99	29,21	51	6	28,8	87,4	8	153	132,69	82	30	120
50,8	30,99	29,21	51	6	28,8	87,4	9	169	148,54	88	30	120
50,8	30,99	29,21	51	6	28,8	87,4	10	185	164,44	104	30	120
50,8	30,99	29,21	51	6	28,8	87,4	11	200,8	180,34	120	30	120
50,8	30,99	29,21	51	6	28,8	87,4	12	216,8	196,29	133	30	120
50,8	30,99	29,21	51	6	28,8	87,4	13	232,8	212,29	145	30	120
50,8	30,99	29,21	51	6	28,8	87,4	14	248,8	228,29	145	30	120
50,8	30,99	29,21	51	6	28,8	87,4	15	264,8	244,3	160	30	120
50,8	30,99	29,21	51	6	28,8	87,4	16	280,9	260,4	160	30	120
50,8	30,99	29,21	51	6	28,8	87,4	17	296,9	276,4	180	30	120
50,8	30,99	29,21	51	6	28,8	87,4	18	313	292,55	180	30	120
50,8	30,99	29,21	51	6	28,8	87,4	19	329,1	308,66	200	30	120
50,8	30,99	29,21	51	6	28,8	87,4	20	345,2	324,71	200	30	120
50,8	30,99	29,21	51	6	28,8	87,4	21	361,3	340,82	200	30	120
50,8	30,99	29,21	51	6	28,8	87,4	22	377,5	356,98	200	30	120
50,8	30,99	29,21	51	6	28,8	87,4	23	393,6	373,08	200	30	120
50,8	30,99	29,21	51	6	28,8	87,4	24	409,7	389,18	200	30	120
50,8	30,99	29,21	51	6	28,8	87,4	25	425,8	405,33	200	30	120
50,8	30,99	29,21	51	6	28,8	87,4	26	441,9	421,44	200	30	120
50,8	30,99	29,21	51	6	28,8	87,4	27	458,1	437,59	200	30	120
50,8	30,99	29,21	51	6	28,8	87,4	28	474,2	453,69	200	30	120
50,8	30,99	29,21	51	6	28,8	87,4	30	506,5	486	200	30	120

The 3D model configuration of each sprocket can be dynamically retrieved using a preset Configuration table. The file name of the 3D model containing the Configuration table is Sprocket ANSI duplex 2x1 ¼.FCStd.

To obtain the 3D model of the desidered sprocket, click the spreadsheet Data in the Tree View and then select the Teeth Number in the property editor. If nothing changes try to Refresh the model.

See the following image for details

Notes for developers

If you add a row in the Configuration table of the Data spreadsheet, then add that row in the above table of this README.md file, without the first cell.