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KTR Kupplungstechnik
GmbH
D-48407 Rheine
The POLY is a torsionally elastic claw coupling. It is able to compensate offset of shafts, e. g.
caused by manufacturing inaccuracies, thermal expansion etc.
The POLY type PKD enables a change of the elastomer package without having to
disassemble the drive or driven machine in case of low shaft distance dimension.
Table of Contents
1
Technical Data
2
Hints
2.1 General Hints
2.2 Safety and Advice Hints
2.3 General Hints to Danger
2.4 Proper Use
3
Storage
4
Assembly
4.1 Components of the Couplings
4.2 Hint regarding the finish bore
4.3 Assembly of the Coupling
4.4 Displacements - Alignment of the Couplings
5
Enclosure A
Hints and instructions regarding the use in
5.1 Selection of the Coupling Size
5.2 Control intervals for couplings in
5.3 Approximate values of wear
5.4 Permissible coupling materials in the
5.5
Marking of coupling for the hazardous area
5.6 Starting
5.7 Breakdowns, causes and elimination
5.8 Certificate of Conformity according to the EG Standards 94/9/EG
dated 23 March 1994
Gezeichnet: 13.01.03 Sha/At
Urheberschutz
gemäß DIN 34
Geprüft:
Operating-/Assembly Instructions
D e s i g n P K D
Ersatz für:
14.01.03 Sha
Ersetzt durch:
P O L Y
hazardous areas
hazardous areas
hazardous area
KTR-N v. 18.02.02
KTR-N
49612 E
sheet:
1
edition:
5
Verteiler
W
K
V
VA
M
KC
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Summary of Contents for KTR POLY
- Page 1 D e s i g n P K D The POLY is a torsionally elastic claw coupling. It is able to compensate offset of shafts, e. g. caused by manufacturing inaccuracies, thermal expansion etc. The POLY type PKD enables a change of the elastomer package without having to disassemble the drive or driven machine in case of low shaft distance dimension.
-
Page 2: Technical Data
GmbH D-48407 Rheine edition: D e s i g n P K D 1 Technical Data Bild 2: Poly - Elastomerpaket NBR (Perbunan) 92 ShA Components: cam part ( preferably to be used at the driving end ) flange hub... -
Page 3: General Hints
2.1 General Hints Please read through these mounting instructions carefully before you set the coupling into operation. The POLY coupling is approved for the use in hazardous areas. When using the coupling in hazardous areas please observe the special hints and instructions regarding safety in enclosure A. -
Page 4: Proper Use
Unauthorized modifications on the coupling design are not admissible. We do not take any warranty for resulting damages. To further develop the product we reserve the right for technical modifications. The POLY-coupling described in here corresponds to the technical status at the time of printing of these mounting instructions. - Page 5 Operating-/Assembly Instructions sheet: GmbH D-48407 Rheine edition: D e s i g n P K D 4 Assembly 4.1 Components of the Couplings Components of POLY design PKD Component Quantity Designation Material Balancing Condition 1) Component 2D, cam part EN-GJL-250...
- Page 6 • Fasten the hubs by tightening the setscrews DIN 916 with cup point (see table 1). picture 5: assembly of flange hub with cam ring picture 6: assembly of cam part and flange hub with cam ring Gezeichnet: 13.01.03 Sha/At Ersatz für: KTR-N v. 18.02.02 Verteiler Urheberschutz gemäß DIN 34 Geprüft: 14.01.03 Sha...
- Page 7 (see table 6) are permissible. Please note: • Please check with a dial gauge, ruler or feeler whether the permissible displacement figures of table 6 can be observed. Gezeichnet: 13.01.03 Sha/At Ersatz für: KTR-N v. 18.02.02 Verteiler Urheberschutz gemäß DIN 34 Geprüft: 14.01.03 Sha...
- Page 8 750 max. radial displace- 1/min ment ∆Kr [mm] n=1000 1/min max. angular displace- n=1500 ment ∆Kw [mm] 1/min n=3000 sum V 1/min Gezeichnet: 13.01.03 Sha/At Ersatz für: KTR-N v. 18.02.02 Verteiler Urheberschutz gemäß DIN 34 Geprüft: 14.01.03 Sha Ersetzt durch:...
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Page 9: Hazardous Areas
„Breakdowns“, as far as possible. The maintenance intervals must be adjusted according to the changed operating parameters. Gezeichnet: 13.01.03 Sha/At Ersatz für: KTR-N v. 18.02.02 Verteiler Urheberschutz gemäß DIN 34 Geprüft: 14.01.03 Sha... - Page 10 5.2 Control intervals for couplings in hazardous areas picture 11: POLY design PKD Checking of torsional backlash Here the backlash between coupling cams and the elastomer packages must be checked by reverse backlash. The friction / wear may be 20% of the original thickness of the elastomer package before exchanging the elastomer packages.
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Page 11: Hazardous Area
Explosion group IIC: e. g. II 2G c IIC T4 In the marking II 2G c IIC T4 the explosion group IIB is included. Gezeichnet: 13.01.03 Sha/At Ersatz für: KTR-N v. 18.02.02 Verteiler Urheberschutz gemäß DIN 34 Geprüft: 14.01.03 Sha... - Page 12 „Breakdowns“ and, if possible, be eliminated according to the proposals. The possible breakdowns mentioned can be hints only. To find out the cause all operating factors and machine components must be considered. Gezeichnet: 13.01.03 Sha/At Ersatz für: KTR-N v. 18.02.02 Verteiler Urheberschutz gemäß DIN 34 Geprüft: 14.01.03 Sha...
- Page 13 (consider coupling to hot surfaces installation space) performance / 3) assemble new coupling size coupling cams slip 4) check alignment through Gezeichnet: 13.01.03 Sha/At Ersatz für: KTR-N v. 18.02.02 Verteiler Urheberschutz gemäß DIN 34 Geprüft: 14.01.03 Sha Ersetzt durch:...
- Page 14 5) check alignment, correct if necessary -20 °C / +80 °C 6) check and regulate ambient / contact temperature Gezeichnet: 13.01.03 Sha/At Ersatz für: KTR-N v. 18.02.02 Verteiler Urheberschutz gemäß DIN 34 Geprüft: 14.01.03 Sha Ersetzt durch:...
- Page 15 A T T E N T I O N ! KTR does not assume any liabilities or guarantees regarding the use of spare parts and accessories which are not provided by KTR and for the damages resulting herefrom. Gezeichnet: 13.01.03 Sha/At Ersatz für:...
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Page 16: Certificate Of Conformity
EG Standard 94/9/EG dated 23 March 1994 and to the legal regulations The manufacturer - KTR Kupplungstechnik GmbH, D-48432 Rheine - states that the POLY couplings described in these mounting instructions and explosion-proof designed correspond to Article 1 (3) b) of Standard 94/9/EG and comply with the general Safety and Health Requirements according to enclosure II of Standard 94/9/EG.
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