These shaft clamping elements consist of just two conical rings which require the minimum of radial space, so providing compact assemblies, and enabling use within small hub diameters. The design offers the maximum versatility of design, but does require the customer to provide their own thrust ring assembly. Whilst only providing low torque transmission per unit they can be combined (up to 4 units) to increase torque capacity. When fully clamped these units provide excellent gastight sealing. Many designs of thrust rings are possible and sketches to the left are two typical designs. These units do not self centre, so require external means of centring the hub. Recommended tolerances for full torque transmission are:-Up to 38m shaft 0:- Shaft h6 40mm and above shaft 0:- Shaft h8 Clamping surfaces to be finished to Rz < 15 /xm. Factor for combining elements in one assembly. Number of Elements Torque Capacity 2 1.55M Nm Surface Pressure Axial Force necessary to clamp * Minimum outside diameter of hubs manufactured in medium carbon steels with yield strength > 320 N/mm . For hub types, and other materials, refer to page 3. For assembly and disassembly instructions refer to page 24. t Clamping Rings for shafts up to 200mm diameter are available to order. 18 ^ INDEX ^ BACK NEXT ^

These clamping elements use a single lock nut to apply the clamping pressure, thereby enabling quick assembly and removal. The lock nut can be secured in postition by bending over a tab of lock washer. The thin walls of the clamping cones, combined with low hub pressures enables use with soft materials, such as aluminium, and small hub diameters. —i Use type CCE 54 where axial space is restricted and torque is low. Type CCE 55 is for higher torque transmission. Recommended tolerances for full torque transmission are:-Shaft h8 Clamping surfaces to be finished to Rz < 15 (im. Surface Pressure Assy...