Standard_Parts_Catalogue

Page 826 | 2.4 Tensioning with Clamping Mechanisms GN 866 Power Clamps Pneumatic, for Centered Clamping 2 Type BC 2 clamping arms vertical for centred clamping The clamping forces F S of power clamps GN 866 are directed inwards at the clamping arms. The maximum clamping moment of the power clamps GN 866 is reached once the clamping arm is at the end of its stroke. For this reason the wor- king stroke should be completed as closely as possible to the stroke end. see also... • Operating Principle, Mounting Methods → Page 820 • Centering Guide Bushings GN 870 → Page 837 • Proximity Switches (to Monitor the End Position) → Page 838 • Other Accessories → Page 828 ff. Information • Steel C 45 Chemically nickel plated NC • Max. pressure 10 bar • ISO Fundamental Tolerances → Page 2151 • RoHS Specification 3 • With anti-stick coating for protection against welding spray and corrosion On request Size ( Piston- Ø ) l 4 l 5 l 6 ≈ m 1 ±0,01 m 2 m 3 ±0,01 m 4 ±0,01 m 5 r s 1 s 2 t w Angle in ° 20 24,5 5 89 12  7,5 17 22 13 48 32 38 13 66 32 31 6 72,5 18 10 25 30 22 67,5 42 42 15 14 40 38 7,5 89,5 22 13 30 37 25 82,5 52 52 18 14 1 Size (Piston- Ø ) Max. clamping moment in Nm at 6 bar F S in N Clamping force at r at 6 bar F H in N Holding capacity at r at 6 bar a b −0,2 d 1 h8 d 2 d 3 H8 d 4 d 5 l 1 −0,5 l 2 −0,5 l 3 20  60 1150 630 21 10 28 M 5 7 4,1 M 5 138 160 57,5 32 150 1520 1110 31 12 40 M 6 9 5 G 1 ⁄ 8 206 237 91 40 300 2000 1800 37 16 50 M 8 11 6,8 G 1 ⁄ 8 244 282 104 1 Size 2 Type 3 Finish How to order 1 2 3 GN866-20-BC-NC