Mekaniska system och komponenter: allmänt

Ämnesområden: Kullager
Kommittébeteckning: SIS/TK 105 (Rullningslager)
Källa: ISO
Svarsdatum: den 19 apr 2019
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This document specifies

— basic principles, testing assembly and the test machine for noise testing of rolling bearing greases;

— symbols used by the test methods BQ+, MQ and NQ.

This document is applicable for testing bearing greases and especially lubricating greases made for rolling bearings1) and testing of unused grease primarily.

Ämnesområden: Kullager
Kommittébeteckning: SIS/TK 105 (Rullningslager)
Källa: ISO
Svarsdatum: den 19 apr 2019
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This document specifies the testing and evaluation method of rolling bearing grease noise in accordance with the method BQ+.

The present standard applies jointly with ISO 21250-1.

Ämnesområden: Kullager
Kommittébeteckning: SIS/TK 105 (Rullningslager)
Källa: ISO
Svarsdatum: den 19 apr 2019
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This document specifies the testing and evaluation method of rolling bearing grease noise in accordance to the method MQ.

The present standard applies jointly with ISO 21250-1.

Kommittébeteckning: SIS/TK 262 (Lyftkranar)
Källa: CEN
Svarsdatum: den 22 maj 2019
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This document is due to be used together with EN 13001-1 and EN 13001-2 and as such they specify general conditions, requirements and methods to prevent by design and theoretical verification, mechanical hazards in gear components of cranes.

This document covers the following types of gears and adjoining components, used in mechanisms for any principal movement of a crane:

— cylindrical helical and spur gears and bevel gears, with involute profile geometry;

— gears arranged in enclosed housings or as open gears;

— gears made from steel or iron and gear boxes made from steel, iron or aluminium;

— gears and pinions with lubrication;

— gear boxes and single gear arrangements with bearings and shafts supporting the gears.

The following is a list of significant hazardous situations and hazardous events that could result in risks to persons during normal use and foreseeable misuse. Clauses 4 to 7 of this document are necessary to reduce or eliminate the risks associated with the following hazards:

— exceeding the limits of strength (yield, ultimate, fatigue);

— exceeding temperature limits of material.

This document is applicable to cranes, which are manufactured after the date of approval of this document by CEN, and serves as a reference base for product standards of particular crane types.

Kommittébeteckning: SIS/TK 222 (Lyftredskap)
Källa: CEN
Svarsdatum: den 10 jun 2019
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This document specifies the minimum requirements for the molten metal and resin socketing of steel wire ropes within the scopes of EN 12385-4:2002+A1:2008, EN 12385-5:2002, EN 12385-6:2004, EN 12385-7:2002, EN 12385-8:2002, EN 12385-9:2002 and EN 12385-10:2003+A1:2008.

The document is applicable only to those requirements that ensure that the socketing is strong enough to withstand a force of at least 100 % of the minimum breaking force of the rope (i.e. socket termination efficiency factor KT = 1,0).

NOTE Rope terminations made by socketing in accordance with this document can be used for determining the breaking force of wire ropes in accordance with EN 12385-1:2002+A1:2008, Annex A.

Socketing by the methods and materials described in this standard are for use within the temperature limits given in normative Annex E.

This document deals with all significant hazards, hazardous situations and events relevant to metal and resin socket terminations, when they are used as intended and under conditions of misuse which are reasonably foreseeable (see Clause 4).

Kommittébeteckning: SIS/TK 103 (Fästelement)
Källa: CEN
Svarsdatum: den 14 jun 2019
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This document specifies the mechanical and physical properties of heat-treated self-tapping screws made of steel, with thread ST2,2 to ST9,5 in accordance with ISO 1478, together with the related test methods.

Self-tapping screws are designed to form mating threads in materials into which they are driven, without deforming their own thread.