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K1878Metal bellows couplings, mini with grub screw |
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Item description/product images |
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DescriptionMaterial:Hub aluminium.
Bellows stainless steel.Version:Bright.Note:Play-free mini metal bellows coupling with high torsional stiffness. The metal bellows compensates for axial, radial and angular shaft misalignment with low restoring forces. With grub screw for fastening to shafts.
They are primarily used when precise position and motion transmission is required, e.g. highly dynamic positioning and servo systems, rotary encoders, tachometers, potentiometers.Temperature range:-30 °C to +120 °C.Assembly:The metal bellows coupling hubs have an H7 tolerance. The recommended clearance tolerance is 0.02 - 0.05 mm. This tolerance and lubricating the shaft journals aid assembly and removal.
The metal bellows may be deformed max. 3 times over the permissible deflection values specified in the catalogue during assembly and removal. Avoid any use of force.On request:Desired hub holes D1 and D2 separately with tolerance class or tolerance zone.
Keyway acc. to DIN 6885. Please observe largest possible bore by keyway. DownloadHere is all the information as a PDF datasheet:
Are you looking for CAD data? These can be found directly in the product table.
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Order No.
| Size | Nominal
torque
Nm | Inertia
(gcm²) | Torsional stiffness
Nm/rad
| Spring stiffness
radial
(N/mm) | Spring stiffness
axial
N/mm | CAD | Acc. | Price | Order |
|---|
| K1878.0050230303 | 5 | 0,5 | 1,5 | 200 | 18 | 10 |  | | 19.02 € | | | K1878.0050230404 | 5 | 0,5 | 1,5 | 200 | 18 | 10 | | | 19.02 € | | | K1878.0050230505 | 5 | 0,5 | 1,5 | 200 | 18 | 10 | | | 19.02 € | | | K1878.0050230606 | 5 | 0,5 | 1,5 | 200 | 18 | 10 | | | 19.02 € | | | K1878.0100250303 | 10 | 1 | 2 | 360 | 31 | 20 | | | 21.06 € | | | K1878.0100250305 | 10 | 1 | 2 | 360 | 31 | 20 | | | 21.06 € | | | K1878.0100250505 | 10 | 1 | 2 | 360 | 31 | 20 | | | 21.06 € | | | K1878.0100250506 | 10 | 1 | 2 | 360 | 31 | 20 | | | 21.06 € | | | K1878.0100250606 | 10 | 1 | 2 | 360 | 31 | 20 | | | 21.06 € | | | K1878.0150260505 | 15 | 1,5 | 2 | 750 | 59 | 15 | | | 25.14 € | | | K1878.0150260506 | 15 | 1,5 | 6 | 750 | 59 | 15 | | | 25.14 € | | | K1878.0150260508 | 15 | 1,5 | 6 | 750 | 59 | 15 | | | 25.14 € | | | K1878.0150260606 | 15 | 1,5 | 6 | 750 | 59 | 15 | | | 25.14 € | | | K1878.0150260608 | 15 | 1,5 | 6 | 750 | 59 | 15 | | | 25.14 € | | | K1878.0150260808 | 15 | 1,5 | 6 | 750 | 59 | 15 | | | 25.14 € | | | K1878.0200280606 | 20 | 2 | 12,6 | 1300 | 21 | 11 | | | 25.63 € | | | K1878.0200280608 | 20 | 2 | 12,6 | 1300 | 21 | 11 | | | 25.63 € | | | K1878.0200280610 | 20 | 2 | 12,6 | 1300 | 21 | 11 | | | 25.63 € | | | K1878.0200280808 | 20 | 2 | 12,6 | 1300 | 21 | 11 | | | 25.63 € | | | K1878.0200280810 | 20 | 2 | 12,6 | 1300 | 21 | 11 | | | 25.63 € | | | K1878.0200281010 | 20 | 2 | 12,6 | 1300 | 21 | 11 | | | 25.63 € | | | K1878.0450401010 | 45 | 4,5 | 68 | 6500 | 168 | 32 | | | 39.24 € | | | K1878.0450401012 | 45 | 4,5 | 68 | 6500 | 168 | 32 | | | 39.24 € | | | K1878.0450401014 | 45 | 4,5 | 68 | 6500 | 168 | 32 | | | 39.24 € | | | K1878.0450401212 | 45 | 4,5 | 68 | 6500 | 168 | 32 | | | 39.24 € | | | K1878.0450401214 | 45 | 4,5 | 68 | 6500 | 168 | 32 | | | 39.24 € | | | K1878.0450401414 | 45 | 4,5 | 68 | 6500 | 168 | 32 | | | 39.24 € | | | K1878.1000451212 | 100 | 10 | 150 | 8100 | 120 | 27 | | | 40.53 € | | | K1878.1000451215 | 100 | 10 | 150 | 8100 | 120 | 27 | | | 40.53 € | | | K1878.1000451219 | 100 | 10 | 150 | 8100 | 120 | 27 | | | 40.53 € | | | K1878.1000451515 | 100 | 10 | 150 | 8100 | 120 | 27 | | | 40.53 € | | | K1878.1000451519 | 100 | 10 | 150 | 8100 | 120 | 27 | | | 40.53 € | | | K1878.1000451919 | 100 | 10 | 150 | 8100 | 120 | 27 | | | 40.53 € | |
Order No.
| max. shaft offset
radial
(mm) | max. shaft offset
axial
(mm) | max.
angular offset
(°) | max.
rpm
| C
(ISO 4029) | D1
(H7) | D2
(H7) | CAD | Acc. | Price | Order |
|---|
| K1878.0050230303 | 0,15 | 0,3 | 1,5 | 15000 | 1xM3 | 3 | 3 | | | 19.02 € | | | K1878.0050230404 | 0,15 | 0,3 | 1,5 | 15000 | 1xM3 | 4 | 4 | | | 19.02 € | | | K1878.0050230505 | 0,15 | 0,3 | 1,5 | 15000 | 1xM3 | 5 | 5 | | | 19.02 € | | | K1878.0050230606 | 0,15 | 0,3 | 1,5 | 15000 | 1xM3 | 6 | 6 | | | 19.02 € | | | K1878.0100250303 | 0,15 | 0,3 | 1,5 | 15000 | 1xM3 | 3 | 3 | | | 21.06 € | | | K1878.0100250305 | 0,15 | 0,3 | 1,5 | 15000 | 1xM3 | 3 | 5 | | | 21.06 € | | | K1878.0100250505 | 0,15 | 0,3 | 1,5 | 15000 | 1xM3 | 5 | 5 | | | 21.06 € | | | K1878.0100250506 | 0,15 | 0,3 | 1,5 | 15000 | 1xM3 | 5 | 6 | | | 21.06 € | | | K1878.0100250606 | 0,15 | 0,3 | 1,5 | 15000 | 1xM3 | 6 | 6 | | | 21.06 € | | | K1878.0150260505 | 0,1 | 0,3 | 1,5 | 15000 | 2xM4 | 5 | 5 | | | 25.14 € | | | K1878.0150260506 | 0,1 | 0,3 | 1,5 | 15000 | 2xM4 | 5 | 6 | | | 25.14 € | | | K1878.0150260508 | 0,1 | 0,3 | 1,5 | 15000 | 2xM4 | 5 | 8 | | | 25.14 € | | | K1878.0150260606 | 0,1 | 0,3 | 1,5 | 15000 | 2xM4 | 6 | 6 | | | 25.14 € | | | K1878.0150260608 | 0,1 | 0,3 | 1,5 | 15000 | 2xM4 | 6 | 8 | | | 25.14 € | | | K1878.0150260808 | 0,1 | 0,3 | 1,5 | 15000 | 2xM4 | 8 | 8 | | | 25.14 € | | | K1878.0200280606 | 0,2 | 0,4 | 1,5 | 15000 | 2xM4 | 6 | 6 | | | 25.63 € | | | K1878.0200280608 | 0,2 | 0,4 | 1,5 | 15000 | 2xM4 | 6 | 8 | | | 25.63 € | | | K1878.0200280610 | 0,2 | 0,4 | 1,5 | 15000 | 2xM4 | 6 | 10 | | | 25.63 € | | | K1878.0200280808 | 0,2 | 0,4 | 1,5 | 15000 | 2xM4 | 8 | 8 | | | 25.63 € | | | K1878.0200280810 | 0,2 | 0,4 | 1,5 | 15000 | 2xM4 | 8 | 10 | | | 25.63 € | | | K1878.0200281010 | 0,2 | 0,4 | 1,5 | 15000 | 2xM4 | 10 | 10 | | | 25.63 € | | | K1878.0450401010 | 0,1 | 0,3 | 1,5 | 15000 | 2xM6 | 10 | 10 | | | 39.24 € | | | K1878.0450401012 | 0,1 | 0,3 | 1,5 | 15000 | 2xM6 | 10 | 12 | | | 39.24 € | | | K1878.0450401014 | 0,1 | 0,3 | 1,5 | 15000 | 2xM6 | 10 | 14 | | | 39.24 € | | | K1878.0450401212 | 0,1 | 0,3 | 1,5 | 15000 | 2xM6 | 12 | 12 | | | 39.24 € | | | K1878.0450401214 | 0,1 | 0,3 | 1,5 | 15000 | 2xM6 | 12 | 14 | | | 39.24 € | | | K1878.0450401414 | 0,1 | 0,3 | 1,5 | 15000 | 2xM6 | 14 | 14 | | | 39.24 € | | | K1878.1000451212 | 0,15 | 0,4 | 1,5 | 15000 | 2xM6 | 12 | 12 | | | 40.53 € | | | K1878.1000451215 | 0,15 | 0,4 | 1,5 | 15000 | 2xM6 | 12 | 15 | | | 40.53 € | | | K1878.1000451219 | 0,15 | 0,4 | 1,5 | 15000 | 2xM6 | 12 | 19 | | | 40.53 € | | | K1878.1000451515 | 0,15 | 0,4 | 1,5 | 15000 | 2xM6 | 15 | 15 | | | 40.53 € | | | K1878.1000451519 | 0,15 | 0,4 | 1,5 | 15000 | 2xM6 | 15 | 19 | | | 40.53 € | | | K1878.1000451919 | 0,15 | 0,4 | 1,5 | 15000 | 2xM6 | 19 | 19 | | | 40.53 € | |
Order No.
| D1/D2
min. | D1/D2
max. | D1/D2
max.
by keyway | D4 | D5 | L | L2 | L3 | Tightening
torque of
screws Nm | CAD | Acc. | Price | Order |
|---|
| K1878.0050230303 | 3 | 8 | 8 | 15 | 13,5 | 23 | 2 | 6 | 0,5 | | | 19.02 € | | | K1878.0050230404 | 3 | 8 | 8 | 15 | 13,5 | 23 | 2 | 6 | 0,5 | | | 19.02 € | | | K1878.0050230505 | 3 | 8 | 8 | 15 | 13,5 | 23 | 2 | 6 | 0,5 | | | 19.02 € | | | K1878.0050230606 | 3 | 8 | 8 | 15 | 13,5 | 23 | 2 | 6 | 0,5 | | | 19.02 € | | | K1878.0100250303 | 3 | 8 | 8 | 15 | 13,5 | 25 | 2 | 6 | 0,5 | | | 21.06 € | | | K1878.0100250305 | 3 | 8 | 8 | 15 | 13,5 | 25 | 2 | 6 | 0,5 | | | 21.06 € | | | K1878.0100250505 | 3 | 8 | 8 | 15 | 13,5 | 25 | 2 | 6 | 0,5 | | | 21.06 € | | | K1878.0100250506 | 3 | 8 | 8 | 15 | 13,5 | 25 | 2 | 6 | 0,5 | | | 21.06 € | | | K1878.0100250606 | 3 | 8 | 8 | 15 | 13,5 | 25 | 2 | 6 | 0,5 | | | 21.06 € | | | K1878.0150260505 | 3 | 12 | 8 | 19 | 19 | 26 | 3 | 8 | 1,5 | | | 25.14 € | | | K1878.0150260506 | 3 | 12 | 8 | 19 | 19 | 26 | 3 | 8 | 1,5 | | | 25.14 € | | | K1878.0150260508 | 3 | 12 | 8 | 19 | 19 | 26 | 3 | 8 | 1,5 | | | 25.14 € | | | K1878.0150260606 | 3 | 12 | 8 | 19 | 19 | 26 | 3 | 8 | 1,5 | | | 25.14 € | | | K1878.0150260608 | 3 | 12 | 8 | 19 | 19 | 26 | 3 | 8 | 1,5 | | | 25.14 € | | | K1878.0150260808 | 3 | 12 | 8 | 19 | 19 | 26 | 3 | 8 | 1,5 | | | 25.14 € | | | K1878.0200280606 | 3 | 14 | 10 | 24 | 21,5 | 28 | 3 | 6 | 1,5 | | | 25.63 € | | | K1878.0200280608 | 3 | 14 | 10 | 24 | 21,5 | 28 | 3 | 6 | 1,5 | | | 25.63 € | | | K1878.0200280610 | 3 | 14 | 10 | 24 | 21,5 | 28 | 3 | 6 | 1,5 | | | 25.63 € | | | K1878.0200280808 | 3 | 14 | 10 | 24 | 21,5 | 28 | 3 | 6 | 1,5 | | | 25.63 € | | | K1878.0200280810 | 3 | 14 | 10 | 24 | 21,5 | 28 | 3 | 6 | 1,5 | | | 25.63 € | | | K1878.0200281010 | 3 | 14 | 10 | 24 | 21,5 | 28 | 3 | 6 | 1,5 | | | 25.63 € | | | K1878.0450401010 | 6 | 19 | 13 | 32 | 29 | 40 | 4 | 12 | 3 | | | 39.24 € | | | K1878.0450401012 | 6 | 19 | 13 | 32 | 29 | 40 | 4 | 12 | 3 | | | 39.24 € | | | K1878.0450401014 | 6 | 19 | 13 | 32 | 29 | 40 | 4 | 12 | 3 | | | 39.24 € | | | K1878.0450401212 | 6 | 19 | 13 | 32 | 29 | 40 | 4 | 12 | 3 | | | 39.24 € | | | K1878.0450401214 | 6 | 19 | 13 | 32 | 29 | 40 | 4 | 12 | 3 | | | 39.24 € | | | K1878.0450401414 | 6 | 19 | 13 | 32 | 29 | 40 | 4 | 12 | 3 | | | 39.24 € | | | K1878.1000451212 | 6 | 24 | 17 | 40 | 36 | 45 | 4 | 12 | 3 | | | 40.53 € | | | K1878.1000451215 | 6 | 24 | 17 | 40 | 36 | 45 | 4 | 12 | 3 | | | 40.53 € | | | K1878.1000451219 | 6 | 24 | 17 | 40 | 36 | 45 | 4 | 12 | 3 | | | 40.53 € | | | K1878.1000451515 | 6 | 24 | 17 | 40 | 36 | 45 | 4 | 12 | 3 | | | 40.53 € | | | K1878.1000451519 | 6 | 24 | 17 | 40 | 36 | 45 | 4 | 12 | 3 | | | 40.53 € | | | K1878.1000451919 | 6 | 24 | 17 | 40 | 36 | 45 | 4 | 12 | 3 | | | 40.53 € | |
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