RINGSPANN REK Series User manual

Schaberweg 30-38
Telephone [phone]
Fax [phone]
www.ringspann.com
[email protected]
61348 Bad Homburg
Germany
Installation and operating instructions for
elastic jaw couplings REK …DGO/…DHO/…DGZ
E 06.700e

Installation and operating instructions for
elastic jaw couplings
REK…DGO / …DHO / …DGZ
E 06.700e
Issue: 17.12.2019
Version: 03
Drawn: SCHW
Checked: EISF
Pages: 24
Page: 2
Important
Before installation and commissioning of the product takes place, these installation and operating
instructions must be read carefully. Notes of caution and hazard warnings are to be paid particular
attention to.
These installation and operating instructions apply on condition that the product meets the selection
criteria for its proper use. The selection and dimensioning of the product are not the subject of these
installation and operating instructions.
If these installation and operating instructions are not observed or are interpreted wrongly, this shall
invalidate any product liability and warranty of RINGSPANN GmbH; the same also applies in the case
that our product is taken apart or changed.
These installation and operating instructions are to be kept in a safe place and must, in the event of
onward delivery of our product –be it individually or as part of a machine –be passed on along with
the product so that the user has access to them.
Safety information
The installation and commissioning of our product may only be carried out by trained personnel.
Repair work may only be performed by the manufacturer or by authorised RINGSPANN agencies.
If there is suspected malfunctioning, the product, or the machine into which it is built, must be tak-
en out of operation immediately and RINGSPANN GmbH or an authorised RINGSPANN agency
is to be informed.
The power supply is to be switched off during work on electrical components.
Rotating parts must be secured by the buyer against unintentional touching.
In the case of supplies made to a foreign country, the safety regulations applicable in that country
are to be taken into consideration.
This is a translation of the German original version!
In case of inconsistencies between the German and English version of this
installation and operating instruction, the German version shall prevail.

Installation and operating instructions for
elastic jaw couplings
REK…DGO / …DHO / …DGZ
E 06.700e
Issue: 17.12.2019
Version: 03
Drawn: SCHW
Checked: EISF
Pages: 24
Page: 3
Contents
1. General information
1.1. Function
1.2. General safety instructions
1.3. Other applicable provisions, standards etc.
1.4. Classification in accordance with EC Machinery Directive 2006/42/EC
2. Design and function / parts list
2.1. Labelling
2.2. Dimensions
2.3. Parts list
3. Intended use
4. Warning signs / Impermissible use
5. Condition as delivered
6. Storage
7. Technical prerequisite for reliable operation
7.1. Technical specifications
7.2. Permissible misalignments
7.2.1. Inspection of the radial misalignment
7.2.2. Inspection of the angular misalignment
7.3. Manufacturing the hub bore
7.4. Elastomer elements
8. Assembly
8.1. General assembly instructions
8.2. Assembly of the couplings REK…DGO and REK…DHO
8.3. Assembly of the couplings REK…DGZ
9. Start-up
10. Operational disturbances
11. Maintenance and repair
12. Spare part stockpiling
13. Disposal
14. Supplement for operation in areas with potentially explosive atmosphere
14.1. Normal operation
14.1.1. Explosive atmosphere
14.1.2. Instructions for use
14.2. Instructions on occupational health and safety
14.3. Setup and assembly
14.4. Control, inspection and repair
14.5. Testing
15. Declaration of Conformity according to Directive 2014/34/EU

Installation and operating instructions for
elastic jaw couplings
REK…DGO / …DHO / …DGZ
E 06.700e
Issue: 17.12.2019
Version: 03
Drawn: SCHW
Checked: EISF
Pages: 24
Page: 4
1. General information
1.1. Function
The main task of the elastic jaw coupling consists in transferring the torque of one shaft
end onto another element. Additionally, the coupling is designed to compensate angular,
radial and axial misalignments and reduce the intensity of vibrations and shocks.
1.2. General safety instructions
Safety takes the highest priority for all works with and on the coupling.
To ensure this, the following safety instructions must be observed:
- During installation and maintenance work, the drive motor must be secured against un-
intended start-up and the load side against turning back.
- Accidental touching of the coupling during operation must be prevented with a suitable
cover or protective device.
- Do not reach into the working area of the coupling during operation.
1.3. Other applicable provisions, standards etc.
The couplings are designed on the basis of DIN 740, part 2 (see RINGSPANN catalogue
“shaft coupling”). If the operating conditions (e.g. output, speed) should change, the original
design of the coupling must be reviewed along with the load-bearing capacity of the shafts
and the used shaft-hub-connections.
The locking screws are in compliance with DIN EN ISO 4029.
1.4. Classification in accordance with EC Machinery Directive 2006/42/EC
The couplings type REK … DGO/…DHO/…DGZ are a machine element. Since machine
elements do not fall under EC Machinery Directive 2006/42/EC, RINGSPANN does not
draw up a declaration of incorporation. All important information with regards to the installa-
tion, commissioning and operation is explained in the following.
2. Design and function / parts list
2.1. Labelling
Depending on the coupling size, the parts are labelled as follows:
Hubs:
- RINGSPANN logo
- Abbreviated designation
Elastomer elements:
- RINGSPANN logo
- Size designation
Spacer and driver
- RINGSPANN logo
- Abbreviated designation
- Marks for mounting position

Installation and operating instructions for
elastic jaw couplings
REK…DGO / …DHO / …DGZ
E 06.700e
Issue: 17.12.2019
Version: 03
Drawn: SCHW
Checked: EISF
Pages: 24
Page: 5
2.2. Dimensions
Figure 2.1: Drawing REK…DGO Figure 2.2: Drawing REK…DHO
Size
REK…DGO
REK…DHO
ØD
mm
ØD1
mm
L1
mm
L2
mm
C
mm
C1
mm
O
mm
ØD
mm
ØD1
mm
ØD2
mm
L1
mm
L2
mm
C
mm
C1
mm
O
mm
0024
68
46
20
8
8
10
2 - 4
-
-
-
-
-
-
-
0028
80
68
30
10
12
18
2 - 4
-
-
-
-
-
-
-
0042
95
76
35
12
15
21
2 - 4
-
-
-
-
-
-
-
0048
110
86
40
14
16
25
2 - 4
110
86
62
40
20
10
25
2 - 4
0055
125
100
50
18
22
33
2 - 4
125
100
75
50
23
14
33
2 - 4
0060
140
100
55
20
20
38
2 - 4
140
100
82
55
28
14
38
2 - 4
0065
160
108
60
20
25
39
2 - 6
160
108
95
60
28
16
39
2 - 6
0075
180
125
70
20
33
48
2 - 6
180
125
108
70
30
20
48
2 - 6
0080
200
140
80
24
38
57
2 - 6
200
140
122
80
32
24
57
2 - 6
0090
225
150
90
18
48
65
2 - 6
225
150
138
90
38
26
65
2 - 6
0100
250
165
100
18
58
70
3 - 8
250
165
155
100
42
29
70
3 - 8
Table 2.1: Dimensions REK…DGO and REK…DHO
Figure 2.3: Drawing REK…DGZ