MK3

Miniature bellows couplings

The MK3 type miniature bellows coupling from R+W Couplings has a clamping hub on one side and a clamping pin on the other side. Furthermore, this precision coupling is very suitable for integration in compact spaces. The MK3 coupling has a low moment of inertia, and due to the use of a friction clamp connection, the coupling is completely free of play. Thanks to the forcibly formed bellows shape, the element can simultaneously compensate for lateral, axial, and angular misalignments. As long as these do not fall outside the maximum range, there will be no metal fatigue in the bellows material, and the miniature bellows coupling will be completely free from wear. For specific inquiries about miniature bellows couplings, please contact VARIODRIVE.

Version

Hub with taper lock

Nom. Torque

0,5 - 10 Nm

Speed

tot 10.000 rpm

Temperature Range

-30 tot +110 oC

Bellow material

Stainless steel

Hub material

Aluminum

Peak Load

Tot 1,5x nom. Torque

Backlash

none

Service-life

no service

Optional

ATEX, Clean room versie

Datasheets

Bestelcode instructies
ATEX instructies
Datasheet MK3

Manuals

Manual BK/MK koppelingen

Tabel

MK3 Series		5	10	15	20	45	100
Rated torque (Nm)	TKN	0,5	1	1,5	2	4,5	10
Inside diameter possible from Ø to Ø H7 (mm)	D1	3-7	3-7	4-8	4-12,7	5-16	6-24
Outside diameter (mm)	B	15	15	19	25	32	40
Moment of inertia (gcm2)	Jges	2,6 \| 2,8 \| 3,0	3,0 \| 3,4 \| 3,6	8,5 \| 9,5	25 \| 27 \| 29	100 \| 108	160 \| 205
Torsional stiffness (Nm/rad)	CT	280 \| 210 \| 170	510 \| 380 \| 320	750 \| 700	1200 \| 1300 \| 1200	7000 \| 5000	9050 \| 8800
Fastening screw (ISO 4762)	E	M2	M2	M2,5	M3	M4	M4
Fastening screw (ISO 4762)	I	M3	M3	M4	M4	M5	M6
Tightening torque of the fastening screw (Nm)	E	0,43	0,43	0,85	2,3	4	4,5
Distance between centerlines (mm)	F	4,5	4,5	6	8	10	15
Distance (mm)	G	3	3	3,5	4	5	5
Mounting length (mm)	Cl	9	9	11	13	16	16
Fit length (mm)	C2	10	10	12	12	15	20
Shaft diameter from Ø to Ø h7 (mm)	D2	8-10	8-10	10-14	8-16	14-20	16-24
Axial (mm)	max.	0,4 \| 0,5 \| 0,6	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 \| 0,25	0,15 \| 0,2	0,15 \| 0,2 \| 0,25	0,2 \| 0,25	0,2 \| 0,3
Angular (degree)	max.	1 \| 1,5 \| 2	1 \| 1,5 \| 2	1,5 \| 1,5	1,5 \| 1,5 \| 2	1,5 \| 2	1,5 \| 2
Overall length (mm)	A-1	20 \| 23 \| 26	22 \| 25 \| 28	24 \| 30	27 \| 33 \| 36	36 \| 44	41 \| 51
		5	10	15	20	45	100

Downloads

All
Datasheets
Manuals

Datasheets
Datasheets
Datasheets
Manuals

Did you not find the right information?

Frequently Asked Questions

How can I place an order with VARIODRIVE?

You can place an order with VARIODRIVE by sending your request to orders@variodrive.nl. Your request will then be processed directly by our internal sales team.

Why should I choose a complete solution from VARIODRIVE?

By choosing VARIODRIVE’s complete solution, you won’t need to worry about integrating different drive components into the machine’s drive chain. We stand behind our complete solution and can guarantee its functionality.

Why should I choose VARIODRIVE's system warranty?

Due to our in-depth knowledge of our products and their integration into applications, we can provide a system warranty. At that point, we guarantee that the application will function using our motion control and traction solutions.

How can I download 3D drawings?

For most products on our website, you can download the 3D files. If the desired 3D file is not available, please contact sales@variodrive.nl, and we will send you the 3D file as soon as possible.

How can I download software?

You can download the necessary configuration software for most products on our website. For a few products, this might not be possible. In such cases, please contact sales@variodrive.nl, and we will assist you as soon as possible.

MK3

Specifications