Standard_Parts_Catalogue

Page 265 | 1.3 Adjusting with Handwheels and Cranks GN 322.3 GN 322.7 Handwheels with Retractable Handle Handle Locked Handle Swiveling Aluminum 1 d 1 2 Bore code 3 d 2 4 Type How to order (Handle locked) 1 2 3 4 GN322.3-160-B16-R 1 d 1 2 Bore code 3 d 2 4 Type How to order (Handle swiveling) 1 2 3 4 GN322.7-125-B12-R GN 322.3 The handle in these handwheels is locked in a conical bore in the operating position. For reversal, it must first be pulled from the cone in axial direction. A pressure spring holds the handle in both positions. When swung out, it automatically engages again. GN 322.7 These handwheels are suitable for applications where the handle must not remain in the operating position. In order to bring the handle into this position it has to be turned first through 90° to a stop against a torsion spring and then it is pushed against spring pressure into its hold position. By maintaining the forward thrust on the handle the handwheel can easily be rotated. When releasing the handle the springs returns it back to the retracted position. Information 2 Bore code B Without keyway K With keyway 4 Type R With revolving handle • Aluminum - - Hub machined - - Rim turned and polished - - Unmachined wheel body Matte shot-blasted • Radial and axial runout of the rim < 0.4 • Retractable handles GN 798.3 / GN 798.7 - Plastic, Technopolymer    Black, matte finish - Retracting mechanism    Steel, blackened • Keyway P9 DIN 6885 Page 1 → Page 2078 • Cross Holes GN 110 → Page 2080 • ISO Fundamental Tolerances → Page 2151 • Plastic Characteristics → Page 2158 • RoHS Specification 1 3 d 1 d 2 H7 d 3 b c l 1 l 2 l 3 r Ø Bore GN 322.3 GN 322.7 GN 322.3 GN 322.7 Handle 125 12 - 31 24,5 6,5 7,5 18 44   60 61,5 50 22 140 14 - 36 24,5 6    7   19 45,5 75 76,5 57,5 24 160 14 16 36 25    6,5    7,5   20 47   75 76,5 67,5 24 200 18 20 42 25    7,5 8,5 24 52,5 85 86,5 84 25 250 22 - 48 26,5 12   13   28 61   85 86,5 111 25