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high load capacity slewing ring meaning

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  • Slewing rings - Schaeffler

    2019-5-24 · INA slewing rings are also known worldwide as premium products in ... These machine elements have proved themselves many times over; they have high load carrying capacity, a versatile range of applicat ions and are highly cost-effective. Due to their design, a single bearing can reliably support radial, ... untoothed ring –72VI Four point ...

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  • SLEWING RING SELECTION - Chain and Drives

    SLEWING RING FUNCTIONS LOADS SELECTION The slewing ring, being the link between a mobile element and a fixed base, must have the capacity to transmit the stresses of the mobile part towards the base. It is necessary to accurately define all the actual stresses applied so that a suitable slewing ring with adequate capacity can be selected.

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  • Slewing Rings - Technical Handbook

    2012-1-17 · PSL Slewing Ring Destignation The meaning and sequence of symbols used for PSL slewing ring designation: ... for high stressed rings without gear for high stressed geared rings ... reliable transmission of the load, i.e. sufficient capacity of the raceways, gear and fixing bolts.

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  • PSL Slewing Rings - Production Program

    The slewing ring, being the link between a mobile element and a fixed base, must have a capacity to transmit the stresses of the mobile part towards the base. It is necessary to accurately define all the actual stresses applied so that a suitable slewing ring with adequate capacity can be selected.

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  • PSL Slewing Rings - Production Program

    assemblies such as slewing rings. ROLLIX recommends the use of HIGH TENSILE bolts grade 10.9 and exceptionally grade 8.8 or 12.9. The nuts must be of a same or higher grade as the associated screw. For a screw diameter d, a nut height of 1.d is recommended. For a ring in normalized steel Z or N, the use of hardened flat washers is required ...

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  • DNVGL-ST-0378 Standard for offshore and platform

    The three-row roller slewing ring generally has a very high static load bearing capacity. The ball-column combined slewing ring bears the axial force by a horizontally placed roller, and the steel ball bears the radial Force, the two bear the tipping moment together.

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  • Lifting and Rigging: What are Cranes and what types

    2020-6-1 · The LR 13000 from Liebherr is the only crawler crane in this class which can also operate without derrick ballast. This is made possible by a slewing ring which Liebherr develops and manufactures in-house and features an extreme load capacity. Max. load capacity 3,000 t; Max. hoist height 245 m; Max. radius 196 m; Images and text is owned by ...

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  • Bearing load scenarios; angular contact, radial contact ...

    customer service: Kaydon bearing load scenarios. Types of Reali-Slim® bearings Kaydon Reali-Slim® bearings are available in three basic configurations to handle radial loads, axial loads and moment loads: angular contact (type A), radial contact (type C), and four-point contact (type X).By using these three types, the customer has a wider choice of mounting arrangements to meet load ...

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  • UNASIS Thin Section Split Bearings | Carter

    UNASIS split thin section bearings can be supplied as a stand-alone product, but also fully integrated into UNASIS slewing ring bearings. Their lightweight, heavy-duty, high-precision characteristics make them suitably ideal for numerous applications, including tank turrets, naval gun mounts, satellite gimbals, radar systems, and ancillary products.

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  • SafeCrane - Glossary of Terms - SafeCrane

    Load moment limiter A device, which is pre -set prior to operation, which limits the lifting capacity of a crane at any given configuration. Load radius Shown on the crane rating chart, it is the distance from the centre axis of rotation to the centreline of the vertical hoist line with the load freely suspended. Load …

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  • JBT2300-slewing bearings - SlideShare

    2015-9-13 · Therefore, the static reference load of the slewing bearing should be as follows: Fa′= 1750 kN× 1.45 = 2537.5 kN M′ = 5566.3 kNm × 1.45 = 8071.1 kNm The bolt’s computed load should be: Fa = 1750 kN M = 5566.3 kNm Note: The load used in the bolt check table is not the static reference load of the slewing bearing!

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  • DNVGL-ST-0378 Standard for offshore and platform

    2016-5-19 · Lifting appliances rated to a safe working load of less than 10 kN will be especially considered. Standard — DNVGL-ST-0378. Edition May 2016 Page 9 Standard for offshore and platform lifting appliances DNV GL AS 1.1.3.6 Without prejudice to [1.1.2.4], deviations from the requirements given in this standard may only

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  • THP/SL-FAMILY - Goldhofer

    2020-2-26 · Axle load 26.1 t at 20 km/h Dead weight (4-axles) 11.1 t Vehicle width 3,000 mm Maximum steering angle ± 55° Optional: Split version THP/SL-L PENDULAR AXLE WITH BALL BEARING RACE RING UNIVERSALLY COMBINABLE HIGH TRANSPORT FLEXIBILITY THP/SL-L 7 (3+4) WITH VESSEL DECK Combination example: All vehicles of the

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  • Guide to mobile cranes 2015 - Safe Work Australia

    2020-3-30 · mobile cranes, for example a non-slewing mobile crane can also carry a load while moving (known as mobiling). High risk work licensing. A person who operates a mobile crane (other than non-slewing mobile cranes with a capacity of less than 3 tonnes) must hold the relevant high risk work licence to operate . the crane.

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  • What’s the Difference Between Bearings? | Machine

    2015-8-26 · For higher thrust-load capacity, a 30-degree contact angle is used. 5. Tapered bearings are mounted pairs since they handle radial loads better than a single row of tapered bearings.

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  • Ball Bearings Selection Guide | Engineering360

    2021-5-19 · How It's Made - Ball Bearings Video Credit: NTN Bearing Corporation via YouTube. Deep groove - Radial, or deep groove bearings, can take radial and axial loads to varying degrees but are used when the primary load is in the radial direction. They consist of an inner ring, an outer ring, balls and sometimes a cage to contain and separate the balls.

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  • Higher Performance Capacity Through the Use of Coatings

    2020-9-7 · offer high performance capacity with extended maintenance ... Housings, flanges, slewing rings, connectors, main bearings 28 – Wear protection based on hardness of coating ... – Friction reduction by means of PTFE additives Drawn cups, guide ring segments 48

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  • Machine Definitions - Off-Highway Research

    systems. Beneath the rotation point (slewing ring), excavators may be mounted on either a crawler (tracked) or wheeled undercarriage. Off-Highway Research’s definition of a hydraulic excavator is a machine with an operating weight of 6 tonnes or more. Machines smaller …

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  • Glossary of Crane and Rigging Terms

    2017-3-8 · v1.0 March 8, 2017 3 Boom Hoist Rope drum and its drive, or other mechanism, for controlling the angle of a lattice boom crane. Boom Length The distance along a straight line through the centreline of the boom foot pin to the centreline of the boom head sheave shaft, measured along the longitudinal axis of the boom.

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  • Heavy lifting: Super heavyweights - International

    2021-3-1 · It has a central ballast design meaning that the crane only requires a section of ring or crane track when operating. This, Mammoet says, reduces the size of the lifting area required by up to 45 percent. High-capacity crawlers. In September 2020 Mammoet also launched the 2,500 tonne class Focus 30 heavy lift crawler crane.

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  • Guide to mobile cranes 2015 - Safe Work Australia

    2020-3-30 · mobile cranes, for example a non-slewing mobile crane can also carry a load while moving (known as mobiling). High risk work licensing. A person who operates a mobile crane (other than non-slewing mobile cranes with a capacity of less than 3 tonnes) must hold the relevant high risk work licence to operate . the crane.

    Get Price
  • JBT2300-slewing bearings - SlideShare

    2015-9-13 · Therefore, the static reference load of the slewing bearing should be as follows: Fa′= 1750 kN× 1.45 = 2537.5 kN M′ = 5566.3 kNm × 1.45 = 8071.1 kNm The bolt’s computed load should be: Fa = 1750 kN M = 5566.3 kNm Note: The load used in the bolt check table is not the static reference load of the slewing bearing!

    Get Price
  • Crane | Article about crane by The Free Dictionary

    The slewing portion may be in the form of a high tower (column cranes) or a mast (guyed or rigidly mounted mast-jib cranes). It may be mounted on a gantry (gantry cranes). Rotary cranes may have a fixed or variable radius (the distance between the load and the axis of rotation of the crane), which is changed by swinging the jib (boom) or moving ...

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  • slewing speed - definition - English

    An automatic slewing stop control device for a crane for eliminating influence from elastic vibrations to thereby secure good stopping accuracy comprising a first operating means for operating a slewing control lower limit time (Tmin) based on the dynamic characteristics of a slewing angular speed control system, a second operating means for determining an oscillating cycle (T) of a suspending ...

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  • Boltstress G5 | Boltstress Ultrasonics

    The codes for heat exchanger designs allows Engineers to minimise flange geometry. This saves initial costs but leads to high failure rates. High multitudes (36-84..) of small diameter bolts complies and has adequate strength but leads to very high interactional pre-load losses when they are tightened, consequently they regularly leak.

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  • Bearing preload: What is it and why is it important ...

    2019-6-11 · When an axial load is applied to the inner ring of the bearing, the race of the inner ring comes in contact with the rolling element and translates this load to the raceway of the outer ring. This creates a line of contact between the inner race, the ball and …

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