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EK7 | Elastomer Coupling

With Expanding Shaft

The EK7 has two coupling hubs that are concentrically machined with curved jaws; one side with a clamping hub and screw (ISO 4762) and the other side with an expanding shaft that has an internally tapered
 clamping element.
It has one elastomer insert that is made with precision molded, wear resistant, and thermally stable polymer. The hubs are made of high strength aluminum up to series 450; series 800 and up are made of steel. The expanding shaft and cone are made of steel.
See table below for rated operating speeds. *2.5 Balance grade is available upon request.
This coupling's short, compact design makes for an easily mounted axial installation where space is restricted. It is a long-term, backlash free, vibration damping, electrically isolating solution.

ELASTOMER COUPLING WITH
EXPANDING SHAFT

2 - 2,150 NM

EK7 Diagram

EK7 Series Variants

*See above picture for reference

ItemTorque(Nm)LengthO.D. BO.D. BsMount Length (mm)Fit Length (mm)I.D. (mm)I.D. InsertMomentInertia 1MomentInertia 2Weight (g)Screw 1Screw Tq 1Screw 2Screw Tq 2Distance Centerlines (mm)Distance (mm)Length (mm) HSpeed StdSpeed BalMax TqInsert
EK7-59|12|22225258124-12,710,20,0020,0020,04M32M448471500057|65|4318|24|4A|B|C

EK7-1012,5|16|428323210,3205-1614,20,0030,010,05M44M5910,5571300053|63|4025|32|6A|B|C

EK7-2017|21|6404244,517258-2519,20,010,040,12M58M61215,58,5101250045|60|3534|42|12A|B|C

EK7-6060|75|20465657202712-3226,20,040,10,3M615M8322110111100031|31|25120|150|35A|B|C

EK7-150160|200|425166,568213219-3629,20,080,20,5M835M10602411161000022|26|18320|400|85A|B|C

EK7-300325|405|84688285314520-4536,20,310,9M1070M12110291520900022|26|16650|810|170A|B|C

EK7-450530|660|9576102105345528-6046,20,662,61,5M12120M162403817,527800016|17|121060|1350|190A|B|C

EK7-800950|1100|24094136,5139466035-8060,5897,6M16290M1630050,52327400013|13|81900|2150|400A|B|C



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