Product Finder

Torque Limiters SK

Bellows Couplings BK/BKL

Line Shafts ZA

Miniature Couplings MK

Elastomer / Jaw Couplings EK

Linear Couplings LK

Elastomer Spider Couplings EK

Spider Coupling Model EK1 with keyway connection

Model EK1		Series
		2			5			10			20			60			150			300			450			800
Type (Elastomer insert)		A	B	C	A	B	C	A	B	C	A	B	C	A	B	C	A	B	C	A	B	C	A	B	C	A	B	C
Rated torque (Nm)	TKN	2	2.4	0.5	9	12	2	12.5	16	4	17	21	6	60	75	20	160	200	42	325	405	84	530	660	95	950	1100	240
Max. torque (Nm)	TKmax	4	4.8	1	18	24	4	25	32	6	34	42	12	120	150	35	320	400	85	650	810	170	1060	1350	190	1900	2150	400
Overall length (mm)	A	20			34			35			66			78			90			114			126			162
Outer diameter (mm)	B	15			25			32			42			56			66.5			82			102			136.5
Fit length (mm)	C	6.5			12			12			25			30			35			45			50			65
Inner diameter pilot bored (mm)	DV	3			4			6			7			9			14			18			22			29
Inner diameter range H7 (mm)	D1/2	3-9			6-15			6-18			8-25			12-32			19-38			20-45			28-60			32-80
Inner diameter (elastomer) (mm)	DE	6.2			10.2			14.2			19.2			26.2			29.2			36.2			46.2			60.5
Set screws (DIN 916)	E	see table (depending on bore Ø)**
Width Elastomer insert (mm)	F	5			8			9.5			12			14			15			18			20			25
Distance (mm)	G	3			5			6			9			11			12			15			17			30
Possible shortening length (mm)	H	4			6			6			19			22			26			32			37			43
Mass moment of inertia per hub (10-3 kgm2)	J1/J2	0.0001			0.001			0.003			0.02			0.06			0.1			0.4			1.1			12
Approx. weight (kg)		0.008			0.03			0.08			0.15			0.35			0.6			1.1			1.7			11
Speed* (rpm)		28,000			22,000			20,000			19,000			14,000			11,500			9,500			8,000			4,000
Downloads		2			5			10			20			60			150			300			450			800
2D-DXF (ZIP folder)
3D-EXE (Viewer)
3D-STEP (ZIP folder)

1 Nm = 8.85 in lbs

**Set screws
D1 /D2	E
Ø 6-10	M3
Ø 11-12	M4
Ø 13-30	M5
Ø 31-58	M8
Ø 59-80	M10

Information about static and dynamic torsional stiffness as well as max. possible misalignment click here >>

Last update: 07-14-2008

Details of pilot bored coupling hubs (DV)

It´s critical that modifications of the hub are machined concentrically and
perpendicular to the through bore.

EK1 hubs can be modified to customer specifications.

The coupling hub may be shortened by measurement H.