Ready-to-use friction-locked shaft-hub connection for quick and easy assembly. For shafts with an h-tolerance zone.

  • Examples

    Example 1: Blade wheel fixture with two clamping sleeves type IK

    The clamping sleeves arranged over a wide basis exert a positive influence on run-out accuracy and rotating flexural stress of the shafthub fit. The degree of torque which can be transferred with two consecutively arranged clamping sleeves is approx. 30 % higher than when using a single clamping sleeve.

    Example 2 – 4: Plug-in connections

    This shaft-hub connection is completely free of play and can be released an unlimited number of times. The tightening torque levels for clamping force initiating screws depend on the required clamping force for each individual clamping sleeve.

    Example 2

    Clamping sleeve type IL with clamping force initiated by tension screw.

    Example 3

    Clamping sleeve type AL with clamping force initiated by set screw.

    Example 4

    Clamping sleeve type AL with clamping force initiated by hollow screw.

     

    Example 5: Spindle sleeve clamped by two clamping sleeves type AK

    The sleeve is hydraulically tensioned and precisely centred. Free movement is immediately possible in the un-tensioned state. The axial thrust created during the clamping process with single arrangement of a clamping sleeve is theoretically balanced out in this case by forces working in opposition. In practice, however, in case of a freely located sleeve, allowance must be made for a slight residual thrust as it is not possible to create identical clamping conditions at the clamping sleeves.

    Example 6: Bevel wheel fixture by clamping sleeves type IK

    This connection is characterized by simple connecting components, a high degree of concentricity and absolute freedom from play.

    Example 7: Pulley fixture by clamping set type DSM

    The hub can be made of an aluminium alloy. Observe the minimum strength specification. High temperatures can impair retention force.

    Example 8: Indexing plate clamped with a clamping set type DSM

    Indexing plate in alloy material at the shaft end of an indexing gear. Here, precise concentricity and run-out are vital.

    Example 9: Gear fixture by clamping set type DSL

    To satisfy the highest concentricity requirements, we recommend mounting a control facility on the gear to allow the concentricity to be checked and adjusted if necessary.

    Example 10: Pressure roller fixture by using two clamping sets type DSL

    Here, two long clamping sets are used to achieve high overall radial rigidity due to intensive tensioning of the shaft and hub. The pressure roller is exchanged by pulling the shaft out of the bearings.

    Example 11: Rocker arm fixture by using a clamping set type DSK

    The peripheral and axial position can be ideally adjusted during assembly.

    Example 12: Guide column clamped with a clamping set type DSL

    Fixture of a guide column in the machine body.

  • Benefits

    Competitiveness through technological leadership – a strategy that calls for an economical increase in power density, efficiency and accuracy. Cylindrical clamping sets create the foundation for this.

    Lower Resource Input

    • Simple configuration of connecting components.
    • Simple installation and dismantling of all components thanks to mating play.
    • Minimum axial drag during clamping process.
    • Clamping force initiation can be freely configured.
    • Quick-release connection.

    More Success

    • High level of concentricity.
    • Minimised vibrational excitation.
    • High torque levels and axial forces.
    • Suitable for alternating torsion.
    • Axial and angular position freely adjustable.
    • Preserves connecting components.
    • Connection can be automated/switched.
    • Re-usable.

    Four unique features – numerous benefits

    • Precise
      All functional surfaces that determine precision are machined to the finest geometrical and positional tolerances.
       
    • Single-piece design
      Unlike tapered clamping sets, the single-piece steel body does not have any joints that could compromise tolerances. This ensures that the high degree of precision achieved in the manufacturing process can also be brought to bear in the relevant application.
       
    • Self-centering
      When subjected to axial compression, the unique geometry of the absolutely symmetrical base body ensures uniform transverse contraction in the direction of the shaft and hub. The resulting centring effect is equivalent to that of the hydro-expansion principle, only much simpler, safer and stiffer.
       
    • Intelligent
      Cylindrical clamping sets exert very low levels of wear on their connecting components. Significantly better clamping homogeneity at the contact surfaces eliminates any possibility of peak clamping force acting at specific points, which frequently lead to damage and installation problems. At the same time, the Spieth design in the tensioned state is equivalent to the combination of a knee lever and a spring compressed against a block, thus guaranteeing an extremely rigid connection. And when released, the cylindrical clamping set easily returns to its original shape.
  • Function

    Functional principle

    Shown here is the using of a clamping set from series DSK with an integrated clamping screw.
    The principle is illustrated in a simplified diagram with enlarged play.

    Clamping set released, easy installation or dismantling with mating play.

    Clamping set clamped, connection is centred with a high load capacity. No lateral displacement during tightening. This ensures ultrahigh precision centring and optimum concentricity.

  • Transmittable Forces

    DSK / DSL / AK / IK / AL / IL

    The specifications provided in the table apply to a bore tolerance of H7 and a shaft tolerance of h5 in the connecting components. For an h6 shaft, in the most unfavourable scenario, a reduction of transmittable forces of approx. 10 % may be expected.

    DSM
    The specifications provided in the table apply to a bore tolerance of H7 and a shaft tolerance to DIN 748 (k6/m6).

    M: Transmittable torque at Fa = 0
    The specified values were ascertained in a series of tests, in which the connecting components were made of C45 steel, produced with the stipulated surface quality.

    Fa: Transmittable axial force at M = 0
    The Fa values are calculated according to

    Subjection of the clamped connection to steady, pulsating, alternating or sudden stress has no impact provided that the occurring peak forces do not exceed the catalogue values. The risk of fretting corrosion is always a possibility in friction-locked connections subjected to alternating torsion or rotating bending stress. This phenomenon can complicate dismantling and can be prevented by complying with the following instructions:

    Perm. alternating torsion

    Perm. rotating bending stress

    M and Fa:
    If both torque and axial forces act on a clamping set at the same time, check using the following formula whether the resulting torque Mr is transmittable.

    M = Transmittable torque (catalogue value) [Nm]

    Me = Required torque [Nm]

    Mr = Resulting torque [Nm]

    Fae = Required axial force [N]

    d1 = Shaft diameter [mm]

    For series AK/IK, AL /IL only

    F: Maximum permissible clamping force
    To avoid the danger of fatigue failure and fretting corrosion, the clamping sleeves should be tensioned in case of high clamping/release cycle frequencies to a maximum of 0.75 F.

    C: Required functional installation space
    Spieth clamping sleeves must be clamped using the controlled application of force. The clamping force cannot be applied in relation to the clamping path. To prevent premature blocking, a "free" functional path "C" must be provided.

    Automated operation
    In the case of automated operation, for example, using hydraulic actuation, a variety of influencing variables can cause the actual values of the system to deviate from the catalogue values. For this application scenario, we strongly recommend that you verify the force or torque values required. In this application, care must be taken to ensure that the installation is completely free of axial play. To avoid fatigue failure and due to the danger of fretting corrosion, in case of high clamping/release cycle frequencies, the clamping sleeves should be tensioned at a maximum of 0.75xF.

    General
    If it is not possible to apply the clamping force F, the following formula is used for approximate determination of the torque Mred which can be transmitted with the given clamping force Fgiv. (<F).

    To ascertain the necessary clamping force for a transmittable torque Mred < M an approximation is possible using the following formula:

    M = Transmittable torque (catalogue value) [Nm]

    Mred = Reduced transmittable torque [Nm]

    F = Max. perm. clamping force (catalogue value) [N]

    Fae = Required axial force [N]

    Ferf = Required clamping force [N]

    Fgeg = Given clamping force (<F) [N]

Order No. Name
CAD-Download
Diameter in mm Clamping screw Transmittable forces
d1 d2 K/L ISO 4762 h MA No. M Fa
h5 mm Nm Nm N
14 26 21 M3 3 2 6 36 5100
14 26 31 M3 3 2 6 60 8600
15 28 21 M3 3 2 6 44 5900
15 28 31 M3 3 2 6 66 8800
16 28 21 M3 3 2 6 43 5400
16 32 31 M4 4 5 6 71 8900
16 28 31 M3 3 2 6 73 9100
16 32 41 M4 4 5 6 130 16300
18 30 21 M3 3 2 6 53 5900
18 35 31 M4 4 5 6 96 10700
18 30 31 M3 3 2 6 86 9600
18 35 41 M4 4 5 6 160 17800
20 32 21 M3 3 2 6 62 6200
20 37 31 M4 4 5 6 100 10000
20 40 36 M5 5 7 6 130 13000
20 32 31 M3 3 2 6 100 10000
20 37 41 M4 4 5 6 180 18000
20 40 52 M5 5 7 6 170 17000
22 35 21 M3 3 2 6 75 6800
22 38 31 M4 4 5 6 100 9100
22 42 36 M5 5 10 6 210 19100
22 35 31 M3 3 2 6 110 10000
22 38 41 M4 4 5 6 180 16400
22 42 52 M5 5 10 6 260 23600
25 37 21 M3 3 2 6 85 6800
25 42 31 M4 4 5 6 140 11200
25 45 36 M5 5 10 6 260 20800
25 37 31 M3 3 2 6 140 11200
25 42 41 M4 4 5 6 250 20000
25 45 52 M5 5 10 6 320 25600
28 40 21 M3 3 2 6 98 7000
28 45 31 M4 4 5 6 170 12100
28 48 36 M5 5 10 6 300 21400
28 40 31 M3 3 2 6 160 11400
28 45 41 M4 4 5 6 280 20000
28 48 52 M5 5 10 6 370 26400
30 42 21 M3 3 2 6 110 7300
30 47 31 M4 4 5 6 190 12700
30 50 36 M5 5 10 6 340 22700
30 55 41 M6 6 13 6 390 26000
30 42 31 M3 3 2 6 180 12000
30 47 41 M4 4 5 6 320 21300
30 50 52 M5 5 10 6 410 27300
30 55 62 M6 6 13 6 430 28700
32 48 31 M4 4 5 6 180 11300
32 52 36 M5 5 10 6 360 22500
32 56 41 M6 6 13 6 410 25600
32 48 41 M4 4 5 6 340 21200
32 52 52 M5 5 10 6 440 27500
32 56 62 M6 6 13 6 460 28700
35 52 31 M4 4 5 6 230 13100
35 55 36 M5 5 10 6 420 24000
35 60 41 M6 6 17 6 630 36000
35 52 41 M4 4 5 6 400 22900
35 55 52 M5 5 10 6 520 29700
35 60 62 M6 6 17 6 700 40000
40 56 31 M4 4 5 6 240 12000
40 62 36 M5 5 10 6 540 27000
40 65 41 M6 6 17 6 750 37500
40 70 52 M8 8 25 6 830 41500
40 56 41 M4 4 5 6 470 23500
40 62 52 M5 5 10 6 620 31000
40 65 62 M6 6 17 6 830 41500
40 70 77 M8 8 25 6 900 45000
45 68 36 M5 5 10 6 640 28400
45 70 41 M6 6 17 6 860 38200
45 75 52 M8 8 25 6 950 42200
45 68 52 M5 5 10 6 720 32000
45 70 62 M6 6 17 6 960 42600
45 75 77 M8 8 25 6 1100 48900
50 72 36 M5 5 10 6 750 30000
50 75 41 M 6 6 17 6 1040 40800
50 80 52 M 8 8 40 6 1850 74000
50 72 52 M5 5 10 6 850 34000
50 75 62 M 6 6 17 6 1130 45200
50 80 77 M 8 8 40 6 1980 79200
55 80 41 M 6 6 17 6 1100 40000
55 85 52 M 8 8 40 6 2070 75400
55 80 62 M 6 6 17 6 1260 45900
55 85 77 M 8 8 40 6 2240 81500
60 85 41 M 6 6 17 6 1320 44000
60 90 52 M 8 8 40 6 2370 79000
60 85 62 M 6 6 17 6 1480 49400
60 90 77 M 8 8 40 6 2600 86600
65 90 41 M 6 6 17 6 1450 44600
65 95 52 M 8 8 40 6 2640 81400
65 90 62 M 6 6 17 6 1630 50100
65 95 77 M 8 8 40 6 2900 89300
70 100 52 M 8 8 40 6 2990 85400
70 100 77 M 8 8 40 6 3210 91800
75 105 52 M 8 8 40 6 3250 86700
75 105 77 M 8 8 40 6 3560 95000
80 110 52 M 8 8 40 6 3520 88000
80 110 77 M 8 8 40 6 3870 96800
85 120 57 M 8 8 40 6 3560 83800
85 120 92 M 8 8 40 6 3900 91800
90 120 52 M 8 8 40 7 4300 95500
90 120 77 M 8 8 40 7 6850 152200
95 125 52 M 8 8 40 8 4540 95600
95 125 77 M 8 8 40 8 7390 155600
100 130 52 M 8 8 40 8 4780 95600
100 130 77 M 8 8 40 8 7780 155600
110 140 52 M 8 8 40 10 6570 119500
110 140 77 M 8 8 40 10 10690 194500
120 150 52 M 8 8 40 10 7170 119500
120 150 77 M 8 8 40 10 11670 194500
130 160 52 M 8 8 40 10 7760 119500
130 160 77 M 8 8 40 10 12640 194500
140 170 52 M 8 8 40 10 8360 119500
140 170 77 M 8 8 40 10 13610 194500
150 180 52 M 8 8 40 10 8960 119500
150 180 77 M 8 8 40 10 14580 194500
160 190 52 M 8 8 40 12 11470 143300
160 190 77 M 8 8 40 12 18670 233400
170 200 52 M 8 8 40 12 12180 143300
170 200 77 M 8 8 40 12 19830 233400
180 210 52 M 8 8 40 12 12900 143300
180 210 77 M 8 8 40 12 21000 233400
190 230 62 M10 10 60 12 16650 175300
190 230 92 M10 10 60 12 27110 285400
200 240 62 M10 10 60 12 17530 175300
200 240 92 M10 10 60 12 28540 285400
210 250 62 M10 10 60 12 18400 175300
210 250 92 M10 10 60 12 29960 285400
220 260 62 M10 10 60 12 19250 175300
220 260 92 M10 10 60 12 31390 285400
230 270 62 M10 10 60 12 20160 175300
230 270 92 M10 10 60 12 32800 285400
240 280 62 M10 10 60 12 21040 175300
240 280 92 M10 10 60 12 34250 285400
250 300 72 M10 10 60 15 27390 219100
250 300 102 M10 10 60 15 44580 356700
260 310 72 M10 10 60 15 28480 219100
260 310 102 M10 10 60 15 46370 356700
270 320 72 M10 10 60 15 29580 219100
270 320 102 M10 10 60 15 48150 356700
280 330 72 M10 10 60 15 30670 219100
280 330 102 M10 10 60 15 49900 356700
290 340 72 M10 10 60 15 31770 219100
290 340 102 M10 10 60 15 51700 356700
300 350 72 M10 10 60 15 32860 219100
300 350 102 M10 10 60 15 53500 356700

[Translate to English:]

3) d2 > 80 mm = Radial runout to IT4

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