B | Without keyway |
K | With keyway (from d1 = 20) |
d1 | d2 - d3 +0.001 Bore Recommended shaft tolerance -0.001 | ||||||||
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0.79 | 6-1/4* | 6-5/16 | 6-3/8 | 8-1/4* | 8-5/16 | 8-3/8 | 10-1/4* | 10-5/16 | 10-3/8 |
1.18 | 8-3/8 | 8-1/2 | 10-3/8 | 10-1/2 | 12-3/8 | 12-1/2 | - | - | - |
1.50 | 12-1/2 | 12-5/8 | 12-3/4 | 15-1/2 | 15-5/8 | 15-3/4 | 20-1/2 | 20-5/8 | 20-3/4 |
d1 | d4 Thread | d5 | l1 | l2 Recommended shaft insertion depth | l3 | Tightening torque of the screw in Nm ≈ |
---|---|---|---|---|---|---|
0.79 | M 4 | 0.48 | 0.84 | 0.23 | 0.11 | 1.7 |
1.18 | M 4 | 0.64 | 1.28 | 0.39 | 0.20 | 1.7 |
1.50 | M 5 | 0.80 | 1.57 | 0.48 | 0.24 | 4 |
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*Load fluctuations are not taken into account |
Like all mechanical parts, shafts are subjected to manufacturing and assembly tolerances that generally cannot be entirely eliminated even with extensive technical measures. |
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Error type |
Misalignment diagram |
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Lateral |
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Angular |
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Axial |
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Runout |
The diagrams show the change in static torsional stiffness within the permissible operating temperature range, under the assumption that the static torsional stiffness at 68°F (20 °C) is 100 percent. The torsional stiffness of the couplings decreases with increasing temperature. |
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For correct fastening of the coupling hubs, the shaft must be installed according to the recommended shaft insertion depth l2. The shaft insertion depth l2 is specified in the standard sheet of the respective coupling. |
When the shaft ends are installed in eccentric arrangements, the coupling constantly attempts to return to its neutral position. The resulting force is referred to as restoring force. |
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Min | Max | Price |
---|---|---|
1 | 4 | $25.09 |
5 | 9 | $23.00 |
10 | 24 | $20.91 |
≥ 25 | $18.81 |
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