Skip to content
ETP-CLASSIC - Where it all started!

News -

ETP-CLASSIC - Where it all started!

ETP’s original product, ETP-CLASSIC, is a hydraulic connection consisting of a hardened, double-walled steel sleeve containing a specially developed pressure medium, sealing ring, piston, pressure flange and cap head clamping screws.

Operation: When tightening the screws, the sleeve expands uniformly against the hub and shaft, creating a rigid joint. The screws are tightened in consecutive order, approximately one half-turn at a time, until the required tightening torque is achieved. When loosening the screws, also in consecutive order, half a turn at a time, the sleeve returns to its original measurements and can easily be dismantled.


- A robust and cost-effective connection.
- Fine adjustment of the hub can be made during mounting.
- Low tightening torque and a small number of screws makes mounting easy.
- Good concentricity, also after several mountings.

ETP-CLASSIC is available as a standard for shafts 15 – 100 mm and in additional imperial sizes.
Runout is 0,03 – 0,06 mm depending on shaft size.
Maximum number of mountings is 100.


The most common sizes of the hydraulic connection ETP-CLASSIC are available in a stainless steel version, called Type R.

The stainless steel version has the exact same function, built-in dimensions and benefits and features of the standard ETP-CLASSIC. However Type R has a few more clamping screws, as the allowed tightening torque of stainless steel screws is lower, resulting in a reduction of the transmittable torque by approx. 20%. The screw lubricant is also approved for use in the food industry.

Hex head clamping screws make cleaning easier.

Type R Advantages

- All parts exposed to the environment are made of stainless steel.
- Screw lubricant is food industry approved.
- ETP-CLASSIC TYPE R has the same benefits and features as ETP- CLASSIC.

ETP-CLASSIC TYPE R is available as a standard for shafts 15 to 50 mm.
Runout is 0,03 – 0,06 mm depending on shaft size.
Number of mountings possible is 50.

Related links



Press contacts

Anders Halldan

Anders Halldan

Press contact Marketing 00 46 (0)13 24 71 00

Related content

Related stories

- leader in hydraulic clamping and centering products

About ETP Transmission AB:

ETP Transmission AB, after being in business for more than 35 years, has successfully developed products for 3 business or application areas.

• Metalworking • Woodworking • Power Transmission

under the registered trademarks ETP® and ETP HYDRO-GRIP®.

Our business concept and all products are based upon the hydraulic principle. The ETP high precision
products offer quick assembly and disassembly. With other words, you can fit your tools or components quick, easy and precise and run at high speeds. Within a few seconds you achieve perfect centering and fastening, simply by tightening of only one screw. Saving you time and money.

We are a global company and our customers are the leaders within their segments. This is the way we likeit, working with companies that expect the absolute best from us. Your challenges drive us forward!

ETP Transmission AB
Roxtorpsgatan 22
S-582 73 Linköping