MK4 | Miniature Coupling
With Press-Fit Connection
The MK4 is designed so that both hubs have radial set screws and integral dismounting grooves.
This coupling incorporates a blind mate press-fit connection.
It has an operating temperature range of -30 degrees to 110 °C (-22 to 230 °F) and a standard speed rating of 20,000 RPM. Speeds in excess of 20,000 RPM are available with a specially balanced version.
This is a backlash free, electrically insulated, torsionally rigid solution that is easily mounted with 3-axis of misalignment compensation.
These couplings have an infinite life, and are maintenance-free if the technical ratings are not exceeded.
The bellows are made of highly flexible high-grade stainless steel.
The clamping hubs and tapered female segment on the bellows face are made of aluminum and the tapered segment on the hub face is a wear-free glass-fiber reinforced plastic.
*Non-standard application: Custom designs with varied tolerances, key-ways, non-standard material and bellows are available upon request.
MK4 Series Variants
*See above picture for reference
| Item | Torque(Nm) | Length | O.D. B | MountLength (mm) | MountLength (mm) | I.D. H7(mm) | I.D. (mm) | MomentInertia 10-3 | TorsionStiffness | Fastener | Torque (Screw) | Distance (mm) | PreLoad | Axial(mm) | Axial Rec Force | Lateral(mm) | Angular(deg) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MK4-5 | 0,5 | 22 | 25 | 28 | 15 | 6,5 | 9 | 3-9 | 3-6,35 | 2,0 | 2,2 | 2,5 | 280 | 210 | 170 | 1x M3 | 1,3 | 2 | 0,4 | 0,4 | 0,5 | 0,6 | 5 | 3 | 2 | 0,15 | 0,2 | 0,25 | 1 | 1,5 | 2 |
| MK4-15 | 1,5 | 26 | 31 | 19 | 7,5 | 10 | 3-12 | 3-9 | 5,5 | 6,0 | 750 | 700 | 2x M3 | 1,3 | 2 | 0,5 | 0,5 | 0,7 | 4 | 3 | 0,15 | 0,2 | 1,5 | 1,5 |
| MK4-20 | 2 | 28 | 33 | 37 | 25 | 11 | 11 | 3-16 | 3-12,7 | 21 | 23 | 25 | 1200 | 1300 | 1200 | 2x M4 | 2,5 | 2,5 | 0,5 | 0,5 | 0,6 | 0,7 | 3 | 4 | 3 | 0,15 | 0,2 | 0,25 | 1,5 | 1,5 | 2 |
| MK4-45 | 4,5 | 39 | 47 | 32 | 13 | 14 | 6-22 | 6-16 | 80 | 85 | 7000 | 5000 | 2x M5 | 4 | 3,5 | 0,7 | 0,7 | 1 | 15 | 10 | 0,2 | 0,25 | 1,5 | 2 |
| MK4-100 | 10 | 46 | 56 | 40 | 15 | 16 | 6-28 | 6-20 | 200 | 210 | 9050 | 8800 | 2x M6 | 6 | 4 | 1 | 1 | 1,2 | 25 | 30 | 0,2 | 0,3 | 1,5 | 2 |
Product Manual
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