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Port Crane - Changzhou Tensun Hi-Tech Co., Ltd. - Swing bearing

Port Crane. Slewing Ring Gear and Swing Bearings are used in various kinds of port crane equipment, among gantry cranes, harbour and shipyard cranes. All those are of particular interest for our products. The cranes require slewing ring bearings with high load carrying capacity, higher reliability and safety. Our three-row roller with large

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Cranes and lifting devices | thyssenkrupp rothe erde

Cranes and lifting devices. The key function of cranes and lifting devices is to securely transport goods in ever more demanding ways. Here, the following principle applies: Larger, faster and further with increasingly heavier loads. This principle applies irrespective of whether a wind turbine is to be built on the high seas, ships are to be

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IHI CRANE SERVICE PROVIDER - REPAIR, PARTS SUPPLIER, …

TYPICAL ASSIGNMENTS CARRIED OUT BY OUR CRANE ENGINEERS ON IHI CRANES INCLUDE CRANE TROUBLESHOOTING, VOYAGE REPAIRS, CRANE INSPECTIONS, CRANE FAULT FINDING, SLEWRING REPLACEMENTS, CRANE WINCH ALL ASPECTS OF IHI SHIP CRANE AND IHI MARINE CRANE CARE THAT ARE TOO COMPLEX TO BE HANDLED BY …

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Cranes and lifting devices | thyssenkrupp rothe erde

Cranes and lifting devices. The key function of cranes and lifting devices is to securely transport goods in ever more demanding ways. Here, the following principle applies: Larger, faster and further with increasingly heavier loads. This principle applies irrespective of whether a wind turbine is to be built on the high seas, ships are to be

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Martin''s Marine Engineering Page ( - Deck crane slew bearing rocking tests

30/12/2011· bearing must have rocking tests carried out, in accordance with manufacturer’s instructions, to determine that the amount of wear in the bearing races is within permitted limits. Although cranes with single ball race slew bearings are considered to be most at risk, rocking tests on all deck cranes, where recommended by the crane manufacturer

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Knuckle Boom Cranes | Palfinger Marine

The knuckle boom cranes of PALFINGER''s marine business are designed to lift high loads with extended jib and provide the operator with great flexibility during lifting operations. Severe weather conditions and heavy seas introduce oscillating motions to suspend loads. The improved level of control makes the knuckle boom crane ideal for offshore

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ship crane bearing price

Hebei ISO 9001, ISO 9000, ISO 14001, ISO 14000, ISO 20000, OHSAS/ OHSMS 18001, IATF16949, HSE, ISO 14064, QC 080000, GMP, BSCI, BRC, …

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NMF Marine Cranes - Crane Spare Parts

Original NMF crane parts and replacement NMF crane parts are available worldwide. Crane parts available include; hydraulic pumps, hydraulic motors, winch parts, gearbox parts, slew rings, slip rings, hydraulic hoses, seal kits, control desks, potentiometers, joysticks, bolts, limit switches, relays, electrical cards, coils, valves, crane sheaves, hookblocks and all other types of NMF …

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Deck Crane Slew Bearing Rocking Tests - Evon Engineering

Deck Crane Slew Bearing Rocking Tests. nuer of incidents have occurred recently involving failure of the slew bearings of ships’ cargo deck cranes, resulting in crane losses and serious injury to personnel. These failures have been caused by undetected excessive wear in the slew bearings. Crane manufacturers generally recommend that

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Crane - Load Calculation Template - Ritchies Offshore Services

Example 3 Ground Bearing Pressures Tables 1. Crane Weight The maximum weight of the crane to be used 50,000kgs (worst case scenario) 2. Load The maximum load to be lifted 22,000kgs + Load 1,500kgs 3. Outrigger Load Point load = (1+2) x 100%

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Deck Crane Slew Bearing Rocking Tests - Evon Engineering

Deck Crane Slew Bearing Rocking Tests. nuer of incidents have occurred recently involving failure of the slew bearings of ships’ cargo deck cranes, resulting in crane losses and serious injury to personnel. These failures have been caused by undetected excessive wear in the slew bearings. Crane manufacturers generally recommend that

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Shipboard cranes

Compact design, reliable performance. MacGregor and Triplex shipboard cranes ensure safe, accurate lifts on board ships and offshore installations, and port-based cargo handling operations. Cranes can be customised and delivered to meet customer-specific safe working load requirements, with various slew bearing dimensions and pedestal heights.

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Five Common Causes of Crane Failure - The Maritime Executive

9/7/2017· Although each ship’s crane failure is unique, there are often similarities between them, right across the global shipping industry, such that many of the incidents could have been avoided. Based

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Rocking Test of Deck Crane - Hydraulicstroubleshooter

Rocking test means checking the condition of the slew bearing of the deck crane. It’s an important items of the crane and if not grease properly the slewing bearing may become worn with bad results. Before cliing on the crane , first thing I do is to check the condition of the crane from outside. When the outside surface below the slewing

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New type of slewing bearing for ship crane - DIVA

MacGREGOR develops and manufactures cranes for shipboard cargo handling. A typical MacGREGOR ship crane consists of four main modules, the pedestal, the foundation, the crane house and the jib. The slewing bearing connects the crane house to the

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Martin''s Marine Engineering Page ( - Deck …

30/12/2011· bearing must have rocking tests carried out, in accordance with manufacturer’s instructions, to determine that the amount of wear in the bearing races is within permitted limits. Although cranes with single ball race slew bearings are considered to be most at risk, rocking tests on all deck cranes, where recommended by the crane manufacturer

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Cranes and lifting devices | thyssenkrupp rothe erde

Cranes and lifting devices. The key function of cranes and lifting devices is to securely transport goods in ever more demanding ways. Here, the following principle applies: Larger, faster and further with increasingly heavier loads. This principle applies irrespective of whether a wind turbine is to be built on the high seas, ships are to be

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Rocking Test Procedure - North Pacific Crane Company

For the Rocking Test Procedure, we provide the following services to determine “Bearing Permissible Wear.” To assess the condition of the bearing, ABS/API procedures recommend that you first determine the initial clearance or normal wear rate first. The Bearing Wear can be measured based upon the “Tilting Clearance Method.” Tilting Clearance Measurement (Initial …

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2008:221 CIV MASTER''S THESIS New type of slewing bearing for ship crane …

2008:221 CIV MASTER''S THESIS New type of slewing bearing for ship crane John Lovén Tommy Nordin Luleå University of Technology MSc Programmes in Engineering Mechanical Engineering Department of Applied Physics and Mechanical Engineering Division of

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Steel Wire Ropes for Cranes Problems and Solutions - Rope …

Verreet: Steel Wire Ropes for Cranes: Problems and Solutions 5 No. It sounds incredible, but a wire rope can still be in good condition even if every single one of its wires is broken 200 times! Fig. 3 shows a schematic arrangement of the 250 wires making up a wire

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Steel Wire Ropes for Cranes Problems and Solutions - Rope …

Verreet: Steel Wire Ropes for Cranes: Problems and Solutions 5 No. It sounds incredible, but a wire rope can still be in good condition even if every single one of its wires is broken 200 times! Fig. 3 shows a schematic arrangement of the 250 wires making up a wire

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slewing bearing for marine crane – Slewing ring bearings, …

18/6/2019· slewing bearing for marine crane. The ship crane is mainly composed of rotating tower, boom, fixed base post welded to the deck, lifting, tilting and swinging mechanism, hydraulic power and piping system, electrical control system,etc. Marine crane has turntable bearings mounted on the bottom of the crane tower body.The lower end of the inner

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structural failure of a cargo crane on the vessel LODZ 2 in the port …

Summary On 7 March 1997, the Polish flag general cargo vessel Lodz 2 was lying at no. 24 berth, Victoria Dock, Melbourne. Using one of the its own cranes, the ship was discharging a general cargo of steel products, including bundles of steel pipes, from no. 2

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Martin''s Marine Engineering Page ( - Deck crane slew bearing rocking tests

30/12/2011· bearing must have rocking tests carried out, in accordance with manufacturer’s instructions, to determine that the amount of wear in the bearing races is within permitted limits. Although cranes with single ball race slew bearings are considered to be most at risk, rocking tests on all deck cranes, where recommended by the crane manufacturer

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Lifting and Hoisting Procedure Inspection Testing and Certifiion …

Where practicable each load bearing part of the crane should be given one overload (i.e. each crane motion shall be tested to prove the integrity of brakes, gearing, load bearing structure etc.) During load testing all operations shall be carried out with extreme care and every permissible crane motion carried out singly at the slowest possible speed.

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How to conduct a rocking test of the crane? - Marine Pro Help

The slewing bearing rocking test should be done periodically for the bearing wear tracking and early failure detection. The measurement could be done from the inside and outside of pedestal. Follow the maker''s recommendations and conduct the test at the same check points as during the initial test during commissioning in order all subsequent measurements have the same …

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How to conduct a rocking test of the crane? - Marine Pro Help

The slewing bearing rocking test should be done periodically for the bearing wear tracking and early failure detection. The measurement could be done from the inside and outside of pedestal. Follow the maker''s recommendations and conduct the test at the same check points as during the initial test during commissioning in order all subsequent measurements have the same …

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Biggest bearings for largest tub cranes - Ship&Offshore

2/2/2017· T he two 30m bearings, which are being built at Huisman’s Chinese production facility in Zhangzhou City, Fujian Province, will be key components in the two Huisman-designed 10,000-tonne tub cranes. Assely of the second bearing is due to take place in March.