The function of coupling is to convert planetary motion into fixed constant rotation of drive shaft, to transmit torque and speed from motor on the drive shaft,and to the bit.Coupling Assembly mostly use flat shaft,but some are flexible shafts.Rotate flat type shaft used on our Downhole Motor is made by linear cutting technology.So the cut has high parallelism.Its roughness can reach 6.3 and it doesn't damage metal chemical composition.Thus,it has longer running life and less mechanical loss.
ROTATE ball drive Coupling Shaft is suitable for ABH (Adjustable Bent Housing).
Coupling Joint Coupling Joint,Universal Joint,Steering Universal Joint,Small Universal Joint ROTATE DRILLING MOTOR CO., LTD , http://www.tcbearings.com
Pneumatic fenders is a leading anti-collision device for marine application in the world today. This compressed air rubber fender is used as a protective medium. Therefore, pneumatic rubber fenders serves as a protective medium against collision when ship-to-ship contact (STS) and ship-to-berthing (STB). Pneumatic fenders has the advantages of massive energy absorption with low unit surface pressure acted upon the ship. So penumatic fenders has become an ideal ship protection medium used extensively by large tankers, LPG vessels, ocean platforms, large docks, harbor and wharfs.
Core attributes
Pneumatic fenders have any advantages including:
Easy and fast to deploy
Very low reaction and hull pressure
Performance adjustable by varying initial pressure
Suitable for areas with large or small tides
Maintains large clearances between hull and structure
Optional chain-tyre nets for heavy duty applications
Low maintenance
Optional chain & tyres for heavy duty use
Application:
Pneumatic fenders are suitable for many applications including:
Tankers, Gas Carriers and Bulk Cargo Ships
Fast ferries and aluminum hulled vessels
Temporary of permanent installations
As stand-off fenders to realign ships with shore facilities
Performance
Pneumatic Fender Technical Performance Table(As followings)
Notes:
1. Guaranteed energy absorption represents the guaranteed energy absorption at 60% deflection.
2. Tolerance of reaction fore and deflection are as follows: Reaction: 10%, Deflection: 5%.
3. Each reaction and energy absorption is measured under static conditions.
4. Testing pressure rate indicates the testing pressure at the factory.
5. Weight of fender body and net may vary 10%.
6. Special sizes are available upon request.
7. Different levels of performance according to internal air pressure levels specified this fenders.
Testing and quality
Yutung is very focused on the quality of their product. Yutung have invested in the most equipment for testing in order to meet the customer'sdemands for high quality. Yutung's fenders are used by customers world wide and they
Have been tested under rough conditions both in warm and cold climate. The large amounts of satisfied customers are our best references.
Specifications (mm)
At 60% compression;
initial pressure is 0.05MPaWeight of sphere
±10%
Diameter
Length
Energy Absorption
(KJ)Reaction Force
(KN)KG
200
500
Â
Â
Â
300
500
Â
Â
Â
500
1000
6
64
25
600
1200
10
86
35
700
1500
17
137
50
1000
1500
32
181
80
1000
2000
45
257
100
1200
2000
63
297
120
1350
2500
100
426
170
1500
3000
153
579
320
1700
3000
190
637
400
2000
3500
308
875
590
2500
4000
663
1380
1000
2500
5500
932
2010
1400
3000
5000
1050
2030
1800
3000
6000
1315
2488
2200
3300
6500
1814
3015
2700
3500
6000
2018
3286
2800
3500
6500
2325
3656
3200
3500
7000
2650
4018
3600
3600
7200
3180
4821
4320
Â
Â
Engine: No
Engine Type: No Enginer
Certification: BV, CCS
Load Capacity: <1000teu
Trademark: Yutung
Transport Package: Nude
Specification: CCS
Origin: China
HS Code: 8907900090
Pneumatic Fender