Miniature Metal Bellows Couplings MK

Please select a Miniature Bellows Coupling:

MODEL SERIES MK	MK1	MK2	MK3	MK4	MK5	MK6	BKL 003	FK1
	General \| Technical information \| 2D and 3D download

Series from 0.5 - 10 Nm

Data table and Downloads Miniature Coupling MK4 Series 0.5 - 10 Nm

Model MK4		Series
		5			15		20			45		100
Rated torque (Nm)	T_KN	0.5			1.5		2.0			4.5		10
Overall length without any pretensioning (mm)	A	22	25	28	26	31	28	33	37	39	47	46	56
Outer diameter (mm)	B	15			19		25			32		40
Fit length of hub (mm)	C₁	6.5			7.5		11			13		15
Fit length of hub (mm)	C₂	9			10		11			14		16
Special bores from Ø to Ø H7 (mm)	D₁	3-9			3-12		3-16			6-22		6-28
Special bores from Ø to Ø H7 (mm)	D₂	3-6.35			3-9		3-12.7			6-16		6-20
Standard bore H7 (mm)	D_1/2	6			6		6/10			10		10
Screw ISO 4029	E	1x M3			2x M3		2x M4			2x M5		2x M6
Tighting torque of the assembly screws (Nm)	E	1.3			1.3		2.5			4		6
Distance (mm)	G	2			2		2.5			3.5		4
Pretensioning approx. (mm)	H	0.4			0.5		0.5			0.7		1
Axial recovery force of coupling (N)		5	3	2	4	3	3	4	3	15	10	25	30
Mass moment of inertia (gcm²)	J_ges	2.0	2.2	2.5	5.5	6.0	25	27	29	80	85	200	210
Torsional stiffness (Nm/rad)	C_T	280	210	170	750	700	1200	1300	1200	7000	5000	9050	8800
axial (mm)	max.	0.4	0.5	0.6	0.5	0.7	0.5	0.6	0.7	0.7	1	1	1.2
lateral (mm)	max.	0.15	0.2	0.25	0.15	0.2	0.15	0.2	0.25	0.2	0.25	0.2	0.3
angular (degrees)	max.	1	1.5	2	1.5	1.5	1.5	1.5	2	1.5	2	1.5	2
Downloads Short Version		5			15		20			45		100
2D-DXF (ZIP folder)
3D-EXE (Viewer)
3D-STEP (ZIP folder)
Downloads Midsize Version		5			15		20			45		100
2D-DXF (ZIP folder)
3D-EXE (Viewer)
3D-STEP (ZIP folder)
Downloads Long Version		5			15		20			45		100
2D-DXF (ZIP folder)
3D-EXE (Viewer)
3D-STEP (ZIP folder)