Carbon Fiber Composite Drive Shafts
& Couplings
North Street Cooling Towers Pvt. Ltd.
KARBONFIBER KOMPOZ T TAHR K
AFTLARI VE KAPL NLER
Key Features and Advantages
Dimensional stability
The lower coefficient of thermal expansion of superior composites used in the manufacturing results in higher dimensional stability of the drive shaft resulting in reduced stresses, vibrations and increase in service life.
Independent of direction of rotation
The drive shafts are designed to rotate in both directions and so are well suited for reverse operations as well.
Long spans
Higher stiffness of the composite shafts provides for longer spans without the need of any intermediate bearings.
Lightweight
Composites drive shafts weigh less than 1/4th the weight of an equivalent metallic drive shaft. This is possible because of very high specific stiffness of the material.
Higher misalignment capabilities
The drive shafts are capable of withstanding higher angular misalignments, more than 1o for each flexi disc.
Smoother operation
Composites have a higher dampening capacity and hence operate at lower vibrations and noise. This helps increase the operational life span of the connected mechanical equipment.
Inherent corrosion resistance
The shafts, flanges and flexible couplings are made from composites while the hubs and hardware are made from SS-316, giving the drive
Temel Özellik ve Avantajlar
Ölçüel Stabilite
Kullan lan üstün kompozitlerin daha dü ük s l genle me katsay s , tahrik milinin daha stabil olmas n sa lar, bu da gerilmelerin, titre imlerin azalmas n ve hizmet ömrünün artmas n sa lar.
Her Yöne Dönebilme
Tahrik milleri her iki yönde de dönecek ekilde tasarlanm t r ve bu nedenle tersine i lem için de çok uygundur.
Uzun Mesafelerde Çal ma
Kompozit aftlar n son derece yüksek rijitli i, herhangi bir ara yata a ihtiyaç duymadan daha uzun aç kl klarda çal ma sa lar.
Hafiflik
Karbon Fiber Kompozit Tahrik Millinin a rl , e de er bir metalik tahrik milinin 1 / 3'ünden daha azd r. Bunun sebebi ise malzemenin özgül sertli inin çok yüksek olmas d r.
Yüksek Kaç kl klarda Çal abilme
Tahrik milleri, her esnek disk için 10'dan fazla olmak üzere yanl aç sal hizalamalara dayanabilir.
Pürüzsüz Çal ma Performans
Kompozitler daha yüksek bir sönümleme kapasitesine sahiptir ve bu nedenle daha az titre im ve gürültü sunar. Bu, di er ba l mekanik ekipmanlar n çal ma ömrünü art rmaya yarar.
Rakipsiz Korozyon Direnci
aftlar, flan lar ve esnek kaplinler kompozitlerden yap l rken, göbekler ve donan m SS-316'dan yap lm t r ve tahrik millerine çok yüksek
Cooling Tower Drive Shafts
With the increase in demand for higher torque capabilities for long span drive shafts, we have developed our composite drive shafts to serve challenging industrial needs. These are highly engineered, non-lubricated, single span, advanced composite drive shafts for superior load applications and rugged environments. This has only been possible through our rich experience in the cooling tower industry.
NSCT Drive Shafts are excellent for industrial cooling tower applications providing the following features:
Inherent corrosion resistance High misalignment capability Superior fatigue life
Smoother operation Easy and rapid installation
Extended service life of the driveline
Product Design
Central carbon composite shafts is made from high modulus carbon fiber for additional longitudinal stiffness making long span drive shafts possible.
This eliminates need of having any intermediate beating housing, thereby increasing the effectiveness of power transmission.
Carbon composite flanges make use of continuous fiber placement technique where the fibers are placed at angles best suited for torque transmission. This further increases the stiffness required at the areas that come in direct with the driving bolts. Since Flanges are made from composites as well; they form an integral part of the central member making the assembly nearly indestructible.
Flexi discs make use of thin discs made from advanced composite materials for extremely high fatigue life. When unitized together, they offer low axial and angular restoring forces. They are further encapsulated with a micro cellular urethane elastomeric for its vibration dampening properties and protection from harsh cooling tower environments.
Hubs/Hardware are made from stainless steel 316 for superior corrosion resistance in acidic and saline water applications.
*Hubs can be made available in K-500 Model if requested for at the time of order.
So utma Kulesi Tahrik aft
Daha yüksek tork kapasitesine sahip, uzun aç kl kl tahrik millerine olan talebin artmas yla birlikte, zorlu endüstriyel ihtiyaçlara hizmet etmek için kompozit tahrik millerimizi geli tirdik. Bunlar, üstün yük uygulamalar ve zorlu ortamlar için yüksek mühendislik ürünü, borusuz, tek aç kl kl , geli mi kar la t rmal tahrik milleridir. Bu geli imin yegane sebebi ise so utma kulesi endüstrisindeki zengin deneyimimizdir.
Hafif Kompozit Karbon Fiber aftlar, a a daki özellikleri ile endüstriyel so utma kulesi uygulamalar için mükemmeldir:
Do al korozyon direnci Yüksek ayarlama kapasitesi Mükemmel çal ma ömrü Pürüzsüz çal ma performans Kolay montaj
Güç aktarma sistemlerinde uzat lm çal ma ömrü
Ürün Dizayn
Karbonfiber kompozit aftlar, uzun aç kl kl tahrik aftlar n mümkün k lan, ilave uzunlamas na mukvemet sa lamak için yüksek modüllü karbon elyaftan yap lm t r. Bu, herhangi bir ara yatak yuvas ihtiyac n ortadan kald r r ve böylece güç aktar m n n etkinli ini artt r r.
Karbon fiber kompozit flan larda, liflerin tork iletimi için en uygun aç larda yerle tirildi i sürekli fiber yerle im tekni ini kullan r. Bu, tahrik c vatalar ile do rudan gelen alanlarda gerekli olan
mukavemeti daha da art r r. Flan lar da kompozit malzemeden yap ld ndan; bunlar, montaj neredeyse hasar alamaz hale getiren merkezi eleman n ayr lmaz bir parças n olu tururlar.
Flexi diskler, son derece yüksek yorulma ömrü için geli mi kompozit malzemelerden yap lm ince diskleri kullan r. Bir araya
getirildiklerinde, dü ük eksenel ve aç sal geri yükleme kuvvetleri sunarlar. Titre im sönümleme özelli ine sahip olmas ve ac mas z so utma kulesi ortamlar ndan korunmas için özel matrisli mikro hücresel üretan elastomerik ile ayr ca kaplan r.
HUB/ Aksesuarlar, asidik ve tuzlu su uygulamalar nda üstün korozyon direnci için 316 paslanmaz çelikten yap lm t r."Hublar, sipari an nda talep edilmesi halinde K-500 Malzemesinden de temin edilebilir.
Table 1, Engineering Data and Dimensions
Models Tubes Size
Max. DBSE
@1500 rpm@
1.2 SF
Max. DBSE
@1800 rpm@
1.2 SF
Max. Bore Size Min.
bore dia. Ø A Ø B
Ø C D Mini DBSC
Standard Oversized Standard Oversized
NSCF50 2 2975 (117.13) 2730 (107.48) 42 (1.65) 65 (2.55) 25 (0.98) 138 (5.43) 62 (2.44) 87 (3.43) 67 (2.64) 60 (2.36) 214 (8.43) NSCF75 3 3586 (141.18) 3295 (129.72)
60 (2.36) 75 (2.95) 35 (1.37) 165 (6.439) 84 (3.30) 109 (4.29) 96 (3.78)
65 (2.56)
244 (9.61)
4 3740 (147.63) 3350 (131.88) 108 (4.25)
NSCF100
4 3995 (157.28) 3698 (145.59)
80 (3.14) 110 (4.33) 45 (1.77) 190 (7.48) 94 (3.70) 137 (5.39)
122 (4.80)
70 (2.76) 288 (10.94)
5 4470 (175.98) 4180 (164.56) 145 (5.71)
6 4675 (184.06) 4290 (168.89) 160 (6.29)
7 5370 (211.42) 4950 (194.88) 200 (7.87)
8 5700 (224.41) 5265 (207.28) 225 (8.86)
NSCF150
4 3995 (157.28) 3698 (145.59)
80 (3.14) 110 (4.33) 45 (1.77) 190 (7.48) 94 (3.70) 137 (5.39)
122 (4.80)
70 (2.76) 288 (11.34)
5 4470 (175.98) 4180 (164.56) 145 (5.71)
6 4675 (184.06) 4290 (168.89) 160 (6.29)
7 5370 (211.42) 4950 (194.88) 200 (7.87)
8 5700 (224.41) 5265 (207.28) 225 (8.86)
NSCF200
6 4675 (184.06) 4290 (168.89)
85 (3.34) 120 (4.72) 45 (1.77) 235 (9.25) 120 (4.72) 167 (6.57)
160 (6.29)
80 (3.15) 362 (14.25)
7 5370 (211.42) 4950 (194.88) 200 (7.87)
8 5700 (224.41) 5265 (207.28) 225 (8.86)
10 7000 (275.59) 6481 (255.12) 260 (10.24)
Unite of
Measure mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in)
All dimension data is subjected to change without prior notice.
Maximum DBSE is based on a minimum safety factor of 1.2 for critical speed as per common practices for composite drive shafts.
Bores and keyways are designed as per ANSI/AGMA 9112--A04
Mass elastic properties and other characteristics are based on ANSI/AGMA 9104-A06.
(i) OAL: Over All Length
(ii) DBSE: Distance Between Shaft Ends
TABLO -1 Teknik De erler ve Ölçüler
• Tüm ölçüm de erleri bildirim yap lmaks z n de i tirilebilir.
• Kompozit aftlarda genel kabule göre Maksimum DBSE için emniyet faktörü kritik h z n 1.2 kat d r.
• Delikler ve kama yuvalar ANSI/AGMA 9112-A04 e göre dizayn edilmi tir.
• Kütle elestik özellikleri ve di er karakteristikleri ANSI/AGMA 9104-A06 ya göredir.
Table 2, Torque and Moment of Inertia
Models Tubes Size
Continuous Torque @ 1.0
SF
Continuous Torque
@ 2.0 SF Peak Overload
Torque Weight @ min.
DBSE Moment of Inertia
(WR2) @ min. DBSE Weight Change per Length
Moment of Inertia (WR2) Change per Length
NSCF50 2 700 (6195) 350 (3098) 1050 (9293) 6.1 (13.42) 0.0145 (49) 1.24 (0.0693) 0.0013 (0.1125)
NSCF75 3
1140 (10480) 592 (5240) 1776 (15720) 9.7 (21.34) 0.0285 (97) 1.79 (0.1) 0.0034 (0.2945)
4 10.2 (22.44) 0.0324 (110) 1.9 (0.1) 0.0045 (0.3893)
NSCF100 4
1680 (14870) 840 (7435) 2520 (22305)
14.8 (32.56) 0.055 (188) 2.29 (0.1279) 0.0071 (0.6149)
5 15.9 (34.98) 0.0563 (190.8) 3.05 (0.1704) 0.0131 (1.1346)
6 16.5 (36.3) 0.0649 (221) 3.39 (0.1894) 0.0178 (1.5417)
7 18.2 (40.08) 0.0724 (2.45) 3.68 (0.206) 0.02114 (1.8292)
8 19.27 (42.39) 0.0912 (309) 4.12 (0.2307) 0.02542 (2.1995)
NSCF150 4
2850 (25225) 1425 (1262) 4275 (37837)
15 (33) 0.0573 (195) 2.29 (0.1279) 0.0071 (0.6149)
5 16.16 (35.33) 0.062 (211) 3.05 (0.1704) 0.0131 (1.1346)
6 17.19 (37.82) 0.0649 (211) 3.39 (0.1894) 0.0178 (1.5417)
7 19.93 (43.84) 0.0692 (234) 3.42 (0.1915) 0.0198 (1.7132)
8 21.6 (47.52) 0.0898 (304) 3.512 (0.1966) 0.0214 (1.8517)
NSCF200 6
4235 (37483) 2118 (18746) 6352 (56220)
24.4 (53.68) 0.1419 (484) 3.39 (0.1894) 0.0178 (1.5417)
7 28.11 (61.84) 0.1782 (608) 4.26 (0.2380) 0.0356 (3.0834)
8 29.9 (65.8) 0.1853 (633) 4.81 (0.2688) 0.0512 (4.4346)
10 36.22 (79.68) 0.2703 (923) 5.57 (0.3113) 0.0798 (6.9117)
Unite of
Measure Nm (Ib-in) Nm (Ib-in) Nm (Ib-in) Kg (Ib) Kg-m2 (Ib-in2) Kg/m (Ib/in) Kg-m2/m (Ib-in2/in) All design data is subjected to change without prior notice.
The standard weight and moment of inertia values are calculated at the minimum drive shaft DBSE with minimum bore sizes for a complete assembly.
Each NSCT Shafts is rigorously test for its performance before dispatch Dynamically balanced as per ISO 1940-1:2003, grade 6.3
Tested at 3 times the continuous torque on our torque Testing Machine.
Flexural tested for up-to 10,000 times at rated torque.
Each drive shafts is checked for its critical speed on our specially designed speed testing rig.
ATEX(CE) certified for use in the most critical and challenging environment.
T
cont.=
Px63025NP = Motor Power (HP)
N = Drive Shafts Speed (RPM)
=Driving Torque (Ib-in) Tcont.
Where,
T
cont.=
Px9549NP = Motor Power (KW) N = Drive Shafts Speed (RPM)
=Driving Torque (Nm) Tcont.
Where,
Continuous drive torque is calculated as follows
TABLO -1 Tork Kapasiteleri
WARRANTY
NSCT warrants the end user that the product will be free from defects in material and workmanship, under normal use and service for a period of one year or otherwise longer in case the warranty period is extended at the time of sale.
If a user discovers that product is unable to conform to its requirements within the warranty period, then they must swiftly the defective part or product, or (ii) deliver the user an equivalent part or product to replace the defective products or (iii) if neither of the two aforementioned options are reasonable, NSCT may, in its sole discretion, refund the user the purchase price paid for the defective product. All products replaced under this scheme will become the property of NSCT.
NOT COVERED UNDER WARRANTY
The warranty shall be void in case the product is not installed, operated, maintained and serviced as per
requirements or subjected to operation loads higher than the published limits. The warranty does not cover damage resulting from (I) improper use, abuse or accident; (ii) modifications, tampering or alterations to the hardware; (iii) abnormal operation conditions or application beyond the product specifications; (iv) repair by the user or any third party with written consent from NSCT.
DISCLAIMER OF WARRANTY
Under no circumstances shall NSCT be liable for any incidental, special or consequential damages or loss, including without limitation, lost profits or the inability to use equipment, whether such damages are based upon a breach of express or implied warranties, breach of contract, negligence, strict tort, or any other legal theory.
The information provided in this catalogue contains technical specifications for performance which in case of actual use may not always apply as published or which may change as a result of further development of the products. An obligation to provide the respective information shall only abide if expressly in the terms of contract. NSCT reserves the right to change technical specifications without prior notice.
Garanti Kapsam
Son kullan c ya, sat s ras nda garanti süresinin uzat lmas durumunda, ürünün normal kullan m ve servis ko ullar nda bir y l veya ba ka bir süre boyunca malzeme veya i çilik hatalar içermeyece ini garanti eder. Bir kullan c , ürünün garanti süresi içinde kendi gereksinimlerini kar layamad n fark ederse, derhal yaz l olarak sat c y bilgilendirmelidir. NSCT' n bu garanti kapsam ndaki yükümlülü ü, NSCT' n seçimine ve masraf na ba l olarak (i) kusurlu parçay veya ürünü onarmak veya (ii) kullan c ya kusurlu ürünleri de i tirmek için e de er bir parça veya ürün teslim etmek veya (ii) Yukar da belirtilen iki seçene in de makul olmad durumlarda, NSCT tamamen kendi takdirine ba l olarak kusurlu ürün için ödenen sat n alma bedelini kullan c ya iade edebilir. Bu bu kapsamda de i tirilen tüm ürünler NSCT' n mal olacakt r
Garanti Kapsam nda Olmayanlar
Ürünlerin gerekliliklerine göre kurulmamas , çal t r lmamas , bak m n n ya da, servis i lemlerinin yap lmamas veya belirtilen limitlerin üzerinde çal t rma yüklerine maruz kalmas durumunda garanti geçersiz olacakt r. Garanti, (i) yanl kullan m,(ii) kötüye kullan m veya kaza modifikasyonlar ,(iii) donan m anormal çal ma ko ullar nda veya uygulamada yap lan de i ikliklerden veya ürün özelliklerinin ötesinde uygulamalardan kaynaklanan hasar kapsamaz (iv). Taraf m zdan yaz l izin al nmadan kullan c veya herhangi bir üçüncü ah s taraf ndan onar m yap lamaz.
Garanti artlar
NSCT hiçbir ko ulda kazara, özel veya sonuç olarak ortaya ç kan hasarlardan veya kay plardan sorumlu olmayacakt r. Bunlarla s n rl olmamakla birlikte, kar kayb veya ekipman kullanamama dahil olmak üzere, bu tür hasarlar aç k veya z mni garantilerin ihlali, sözle me ihlali, ihmal, kat haks z fiil veya di er herhangi bir ayk r l k durumunda tazminat ve/veya iade talep edilemez. Bu katalogda sa lanan bilgiler unlar içerir: Aktif kullan m durumunda her zaman belirtildi i gibi geçerli olmayabilecek veya ürünlerin daha fazla geli tirilmesinin bir sonucu olarak de i ebilecek performans için teknik özellikler.
NSCT , önceden haber vermeksizin teknik özellikleri de i tirme hakk n sakl tutar.
RFQ for Cooling Tower Drive Shafts
Company: Date:
Name: Location:
Telephone: E-mail:
Motor Specifications:
DBSE (Distance Between Shafts End):
Motor Power:
Motor Speed:
Motor Frame Size:
Motor Shaft Diameter:
Keyway Size:
Gear Box Specifications:
Reduction Ratio:
Input Shafts Diameter:
Keyway Size:
Fan Specifications:
Diameter:
Fan RPM:
Number of Fan Blades:
North Street Cooling Towers P Ltd.
(An ISO 9001, 14001, 45001 Certified Company)
C-14, Sector-22, Meerut Road Industrial Area, Ghaziabad- 201003, U.P., India
Document No: NSCT/CFDS-02-M Issue: Jan 2021
