Standard_Parts_Catalogue

Page 910 | 3.1 Indexing, Locking, Blocking with Pins and Ball-Shaped Elements GN 817.9 Indexing Plungers Removable, with or without Rest Position 1 d 1 2 l 1 (Indexing length) 3 Type How to order 1 2 3 GN817.9-8-8-C 3 Type B Without rest position C With rest position Indexing plungers GN 817.9 have been designed such that special versi- ons of the indexing pins can also be made economically in smaller unit quantities. If required, the indexing pins can be machined or made by the user as shown in the drawing above. They are assembled with a countersunk screw and can therefore be assembled several times. All parts are sup- plied in a non-assembled set. The indexing plungers type C are used for such applications where the plunger has to stay in its retracted position. To achieve this, the knob is rotated by 90° degrees after being retracted. A notch keeps the plunger in this position. see also... • List of Indexing Plunger Types → Page 884 ff. • Positioning Bushings GN 412.2 → Page 954 • Positioning Bushings with Ramping Cone GN 412.3 → Page 955 Information • Guide Zinc die casting Powder coated Black, textured finish • Plunger pin Stainless steel AISI 303 • Countersunk screw DIN 7991 Stainless steel AISI 304 • Knob Plastic (Polyamide PA) Black, matte finish • Load Rating Information → Page 2132 • Plastic Characteristics → Page 2158 • Stainless Steel Characteristics → Page 2166 • RoHS Specification 1 2 d 1 Pin −0,02 −0,05 Bore +0,10 +0,03 l 1 Indexing length l 2 max. Hub b d 2 d 3 d 4 −0,02 −0,1 d 5 d 6 k l 3 l 4 l 5 l 6 l 7 l 8 ±0,1 t Spring load in N ≈ Initial End  7 6 8 13 4,3 23 5   M 3 34 22 20 48 22 6 31 17,6 7 6,5 19  7 9 11 13 4,3 23 5   M 3 34 22 20 48 22 6 27,5 21,1 7 6   25  8 8 10 16 5,3 28 6   M 4 38 26 25 58 26 8 39 20,6 8 8,5 26  8 12 14 16 5,3 28 6   M 4 38 26 25 58 26 8 34 25,6 8 8,5 28 10 12 14 16 5,3 28 7,5 M 4 38 26 30 58 26 8 39,2 25,4 8 9,5 38