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Idiomas disponibles
Fig. 17: Pulleys (detailed view)
7 Pulley
X3 Distance X3
1. Push the linear unit (15) up to the motor (2) as far as possible and tighten the
screws (12) by hand.
2. Set one connector sleeve each (16) on the linear unit shaft and the motor
shaft.
3. Place the pulleys (7/11) into the toothed belt (6).
4. Push the pulleys (7/11) over the connector sleeves (16).
5. Adjust pulley (11) and connector sleeve: see table below.
Table 8: Adjusting the pulley (11) on the linear unit shaft
MNR
Motor attachment kit
R412028537
SPRA-32 / 1FK7015
R412028540
SPRA-40 / 1FK7022
R412028544
SPRA-63 / 1FK7034
R412028525
SPRA-32 / IC830M2xx-Kx
R412028541
SPRA-40 / 1FK7034
R412028527
SPRA-40 / IC830M2xx-Cx Observe the distance X3 between shaft and
R412028529
SPRA-63 / IC830M4xx-Gx Observe the distance X3 between shaft and
6. Adjust pulley (7) and second connector sleeve on the motor side. See table
below.
Table 9: Adjusting the pulley (7) on the motor side
MNR
Motor attachment kit
R412028537
SPRA-32 / 1FK7015
R412028540
SPRA-40 / 1FK7022
R412028544
SPRA-63 / 1FK7034
R412028541
SPRA-40 / 1FK7034
R412028525
SPRA-32 / IC830M2xx-Kx Observe distance Y3. See g Fig. 17:
R412028527
SPRA-40 / IC830M2xx-Cx Observe distance Y3. See g Fig. 17:
R412028529
SPRA-63 / IC830M4xx-Gx Observe distance Y3. See g Fig. 17:
7. Secure the pulleys (7/11) by tightening the nut.
Use a hexagonal wrench for countering.
Tightening torque. See table below.
Table 10: Mounting the pulleys: tightening torque M
MNR
Motor attachment kit
R412028537
SPRA-32 / 1FK7015
R412028540
SPRA-40 / 1FK7022
R412028541
SPRA-40 / 1FK7034
R412028544
SPRA-63 / 1FK7034
AVENTICS™ SPRA | R412028475-BAL-001-AE | English
Y3
7
11
X3
11 Pulley with flanged wheel
Y3 Distance Y3
Pulley with flanged wheel (11)
Push the pulley as far forward as possible.
Observe the distance X3 between shaft and
connector sleeve. See g Fig. 17: X3 = 21.6 mm
connector sleeve. See g Fig. 17: X3 = 24.5 mm
connector sleeve. See g Fig. 17: X3 = 33.8 mm
Pulley (7)
Push the pulley as far forward as possible.
Position the pulley on the intermediate plate by
using the assembly tool (17) and push the pul-
ley as far forward as possible.
Observe distance Y3. See g Fig. 17:
Y3 = 10.2 mm
Y3 = 19.1 mm
Y3 = 14.1 mm
Y3 = 27.5 mm
A
Pulley
M
[Nm]
A
GT3-3M-Z18
5
GT3-3M-Z24
20
GT3-5M-Z22
40
GT3-5M-Z22
40
MNR
Motor attachment kit
R412028525
SPRA-32 / IC830M2xx-Kx GT3-5M-Z22
R412028527
SPRA-40 / IC830M2xx-Cx GT3-5M-Z22
R412028529
SPRA-63 / IC830M4xx-Gx GT3-5M-Z44
8. Insert the pretensioning screw (13) into the side hole of the intermediate
plate (4) and tighten the toothed belt (6) with the pretensioning screw until
both guides are straight and parallel.
Important: If the toothed belt cannot be tightened: Loosen the special screw
(12).
9. Measure the toothed belt tension with a suitable frequency meter.
10.Adjust the pretensioning screw (13) until the required belt tension has been
reached.
11.Tighten the special screws (12).
Tightening torques. See g Table 6.
NOTICE! Tightening the pretension screw (13) increases the natural fre-
quency of the toothed belt. See g Table 11. Excessive pretensioning can lead
to increased wear in the bearing of the linear unit or motor due to radial load-
ing (material protection).
Table 11: Natural frequency/strand deflection
MNR
Motor attachment kit
R412028537
SPRA-32 / 1FK7015
R412028540
SPRA-40 / 1FK7022
R412028541
SPRA-40 / 1FK7034
R412028544
SPRA-63 / 1FK7034
R412028525
SPRA-32 / IC830M2xx-Kx
R412028527
SPRA-40 / IC830M2xx-Cx
R412028529
SPRA-63 / IC830M4xx-Gx
12.Once the correct frequency is set, secure the special screws (12) and check
the toothed belt frequency.
• Replace interval for all timing belts: 2 million cycles
• Installation of third-party motors: The natural frequency of third-
party motors can deviate from the indicated values. The frequency
is normally limited by the max. permissible radial load of the motor
shaft.
6.5.5 Assembling the gearbox cover
Items up to number 15. See g Fig. 15.
Fig. 18: Installing the gearbox cover
18 Seal disk
1. Place the flat gasket (8) between the gearbox cover (19) and the intermediate
plate (4).
2. Push the seal disks (18) over the hexagon socket screws (9/10).
3. Fasten the gearbox cover. See g Fig. 18.
Screws and tightening torques. See
Pulley
M
[Nm]
A
40
40
70
Natural fre-
Strand deflection
quency
557 ... 573 Hz
8 N @ 1 mm
517 ... 533 Hz
15 N @ 1.2 mm
345+ / -8Hz
20 N @ 1.6 mm
337 ... 353 Hz
20 N @ 1.6 mm
193 ... 203 Hz
6.01 ... 6.41 N @ 1.29 mm
276 ... 290 Hz
10.1 ... 10.9 N @ 1.29 mm
199 ... 208 Hz
14.1 ... 15.3 N @ 1.88 mm
4
8
19
18
19 Gearbox cover
gScrews and tightening torques M
9
10
.
A
27
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