ETP-CLASSIC is available as standard for shafts 15-100 mm, with imperial sizes and a short overall length version (type S) also available. Also available in stainless steel (type R).
Typical runout is : 0,03 – 0,06 mm. Number of mountings: 100 (type R: 50).
The small number of clamping screws with low tightening torque, makes the mounting/dismantling procedure fast and easy.
ETP-CLASSIC is a hydraulic hub shaft connection which consists of a double-walled hardened steel sleeve, filled with a specially developed pressure medium, sealing ring, piston, pressure flange and cap head clamping screws. ETP-CLASSIC type R is made of stainless steel and has hex head stainless steel clamping screws. This in order to facilitate easy cleaning, essential within food processing applications.
When tightening the screws, the sleeve expands uniformly against hub and shaft and creates a rigid joint. When loosening the screws, the sleeve returns to its original measurements and can easily be dismantled. ETP-CLASSIC type R has a few more clamping screws, as the tightening torque is lower for stainless steel screws.
When the screws have been tightened, ETP-CLASSIC creates an even surface pressure against the hub and shaft along virtually the entire length.
Shaft h8 – k6 (size 15 only h7)
When using k6 shaft – transmittable torque will increase by 20%.
Can also be used with h9 shaft – Transmittable torque will be
reduced by 25%.
Hub H7.
Transmittable torque, T, is for static load.
If the load is alternating or pulsating torque, reduce
the transmittable torque, T, with the following factors:
(factor x T).
Alternating:
0,6 x T for sizes 15 – 30 mm.
0,5 x T for sizes 32 – 100 mm.
Pulsating:
0,7 x T for sizes 15 – 30 mm.
0,6 x T for sizes 32 – 100 mm.
By increasing the tightening torque of the screw sizes
according to the table, the transmittable torque can
be increased by 25%.
Note: Only to be used when operating temperature
≤ mounting temperature.
Max. tightening torque (screw quality 12.9)
ETP-CLASSIC is also available in a large assortment of inch sizes. The main dimensions are given in the table, for more information please refer to technical data for ETP-CLASSIC.
ETP-CLASSIC is also available in a shorter version, type S, which is especially suitable for small hubs.The main dimensions are given in the table, for more information please refer to technical data for ETP-CLASSIC.
Shaft: h9 (for size 19: k6-h8).
Hub: H7.
Shaft h8 (size R-15 only h7)
Hub H7.
Euronorm 1.4568, stainless steel, X7CrNiAl17-7.
** Screws: coated for a low and even friction in the threads.
Make sure the screw thread is well lubricated before each mounting. We recommend the use of Omega 58.
