RINGFEDER TNM GBT Series User manual

EN
08.2019
Elastomer Jaw Couplings
RINGFEDER® TNM GBT, TNM GTW
Installation and Operation Manual
Partner for Performance www.ringfeder.com
TNM GBT TNM GTW

- 2 -
Content
Chapter Page
1Notes on safety ................................................................................................................ 2
2Function ........................................................................................................................... 3
2.1 Appropriate Use ......................................................................................................... 3
3Marking of the coupling .................................................................................................... 4
4Storage ............................................................................................................................ 4
5Construction ..................................................................................................................... 5
6Technical data .................................................................................................................. 6
7Assembly ......................................................................................................................... 8
7.1 Pay attention before the assembly ............................................................................ 8
7.2 Finished borehole ...................................................................................................... 9
7.3 Installing coupling .................................................................................................... 10
8Adjusting coupling .......................................................................................................... 11
8.1 Angular misalignment DKw ....................................................................................... 12
8.2 Radial displacement DKr .......................................................................................... 12
8.3 Axial displacement ................................................................................................... 13
9Operation ....................................................................................................................... 14
9.1 Check of Direction of Rotation ................................................................................. 17
10 Maintenance................................................................................................................... 19
10.1 Wear Inspection on the Buffer Ring ......................................................................... 19
10.2 Wear limit of elastic buffers...................................................................................... 20
10.3 Changing the elastic intermediate ring .................................................................... 21
10.4 Assembly brake drum/disk....................................................................................... 22
11 Waste Disposal .............................................................................................................. 22
1 Notes on safety
The present assembly and operating instruction (AOI) constituents a part of the coupling
supply. Always keep the AOI near the coupling well accessible.
The German version of this manual is the predominant and binding version.
Make sure that all persons charged with the assembly, operating, service, and maintenance
have read and understood the AOI and follow all the points:
-Avert hazards for body and live of the user and third parties.
-Ensure the operating safety of the coupling.
-Avoid the loss of use and environmental impairment through false handling.
In the case of transport, mounting, dismounting and maintenance, attention is to be paid to
the relevant regulations for industrial safety and for environmental care.
The coupling may only be operated, mounted, serviced and maintained by authorised and
trained personnel.
RINGFEDER® TNM GBT, TNM GTW
BAWN 006-GBR-1

- 3 -
The user must take into account that the bolting elements of coupling parts may be adversely
affected by the heat produced by a brake disk/ brake drum due to the resultant friction. Make
sure that the combination of the employed brake lining with the material of the brake disk/
brake drum does not lead to sparks or impermissible thermal growth. The brake disk is
normally made of steel, and the brake drum is normally made of cast iron with nodular
graphite. In case of any doubt, please consult the supplier!
In the interest of further development, we reserve the right to make changes which serve
technological progress.
By the use of accessories and spare parts, which were not originally manufactured by
RINGFEDER POWER TRANSMISSION, we are not responsible for any resulting damage or
liability or guarantee.
2 Function
The coupling RINGFEDER® TNM GBT, TNM GTW is a torsionally elastic and puncture-
proof claw coupling.
It balances out angular, radial, and axial shaft misalignments within defined limits. The
coupling transfers the torque via pressure loadable, elastic buffers of Perbunan (Pb) which
are joined together as an intermediate ring.
The elastic intermediate ring can cushion impacts and torsional vibrations; it is oil-tight and
electrically conductive.
The elastic intermediate ring can be changed without axially shifting the machine.
The coupling is usable in every sense of rotation and installation position.
2.1 Appropriate Use
·The coupling must only be operated in normal industrial atmospheres. Since aggressive
media may attack the coupling components, screws and elastic buffer rings, they
represent a risk for the operational safety of the coupling. Consult RINGFEDER
POWER TRANSMISSION in such cases.
·In order to ensure a faultless, lasting operation of the coupling it must be laid out accord-
ing to the layout instructions e.g. DIN 740 part 2 (or also Product Paper & Tech Paper
”Elastomer Jaw Couplings“) with an operating facture corresponding to the operating
conditions.
·Apart from incorporating a finished bore hole with parallel key groove (see “7.2 Finished
borehole”) no further changes can be carried out on the coupling.
·The coupling may only be used within the framework of the conditions defined in the
performance and delivery contract.
·Every change of the conditions of use or the operating parameters necessitates a new
verification of the coupling layout.
RINGFEDER® TNM GBT, TNM GTW
BAWN 006-GBR-1

- 4 -
3 Marking of the coupling
The product line RINGFEDER® TNM has its hardness in Shore (A) indicated on the
elastic intermediate ring.
4 Storage
On receipt of the goods, the supply is to be checked immediately for completeness and
correctness. Possible damages incurred during transit and / or missing parts are to be
notified in writing.
The coupling parts can be stored in their delivered standard-state for 6 months in a dry,
roofed place at normal room temperature. For a longer storage duration a long-term preser-
vation is necessary (consult RINGFEDER POWER TRANSMISSION). The elastic
intermediate ring must not be subjected to ozone containing mediums, direct solar
influence or strong light sources with ultraviolet-light. The relative humidity must not exceed
65%. In the case of proper storage the characteristics of the elastic intermediate ring
remain unchanged for almost up to three years.
RINGFEDER® TNM GBT, TNM GTW
BAWN 006-GBR-1

- 5 -
5 Construction
Details:
Claw ring (Pos. 3) and flange hub (Pos. 4), coupling hub (Pos. 6) and brake drum/disk (Pos.
7/8) are always delivered screwed together.
Balanced parts are match marked to each other.
1 Pan-head screw DIN 912
2 Locking washer (caging-washer)
3 Claw ring part 102…0X3
4 Flange hub part 104
5 Elastic intermediate ring part 010
6 Coupling flange FE/FG part 102…0X4
Fig. 1 Construction RINGFEDER® TNM GBT, TNM GTW
1. Pan-head screw DIN 912
2. Locking washer (caging-washer)
3. Claw ring part 102
4. Flange hub part 104
5. Elastic intermediate ring part 010
6. Coupling hub part 108
7. Brake drum part 500
8. Twiflex-brake disk part 506
9. Locking washer (caging-washer)
10. Hexagon head screw DIN 933
RINGFEDER® TNM GBT, TNM GTW
BAWN 006-GBR-1