Standard_Parts_Catalogue

Page 59 | 1.1 Operating with Handles and Knobs GN 319.1 Ball Knobs Press-On type 1 d 1 2 d 2 3 Type How to order 1 2 3 GN319.1-40-B10-B 1 2 d 1 d 2 t d 3 h ≈ 20 B  6 13  7 19   25 B  6 14 10 24   25 B  8 14 10 24   30 B  8 14 15 28   30 B 10 18 15 28   35 B  8 14 15 33   35 B 10 18 15 33   40 B 10 18 15 38   40 B 12 21 15 38   45 B 12 21 21 42,5 45 B 14 24 21 42,5 50 B 12 21 21 47,5 50 B 14 24 21 47,5 50 B 16 28 21 47,5 The ball knobs GN 319.1 do not require a thread at the shaft. During mounting, easy blows with a soft hammer are sufficient to drive the knob into place; the shaft end should be slightly rounded or chamfered (30°). The bore is conical which guarantees a firm press on operation. The elastical polyamide bushing shows a good holding force even with a shaft tolerance of h11. The knobs are resistant to vibrations and may be re-assembled any time. Information 3 Type B With polyamide bushing • Plastic Duroplast (Phenolic PF) - - Temperature resistant up to 110 °C - - Black, shiny finish • Polyamide bushing Embeded • ISO Fundamental Tolerances → Page 2151 • Plastic Characteristics → Page 2158 • RoHS Specification Original design S.N