SKF/Global Corrosion Resistant: Stainless Steel Chains Xtra Series

Stainless steel chains have superior corrosion resistance for the most demanding applications. SKF offers a variety of such chains for applications where a high level of cleanliness is required or harsh chemicals are used. SKF stainless steel chains are made from SS304 grade steel for high corrosion resistance and are available in BS and ANSI standards. SS316 and other stainless steel grades are available for higher temperature applications. The SS316 stainless steel is somewhat more resistant to the effects of magnetic permeability, temperature extremes and harsher chemicals.

Nickel-plated: these roller chains combine the strength of standard roller chains with the corrosion resistant properties that come from the nickel-plating. Nickel-plating of all components prior to assembly promotes uniform coverage during the plating process. H2- approved.

SHH Chains: use link plates that, in most cases, are equal in thickness to the plates used in the next larger size of SKF Xtra Strength SPH Chains. Its pins are also thru hardened. The use of higher grade materials results in chains that have greater ultimate tensile strength and allowable load than SKF Xtra Strength SH Chains.

H Chains: slightly differ from standard ANSI chains due to the fact that the thicker link plates correspond to the next larger size of ANSI roller chains. Therefore, H Series chains can accommodate approximately 10% higher shock loads. The ultimate tensile strength will be the same as a standard ANSI chain. SKF Xtra Strength H Chains are well suited for applications where shock loads are higher, operating speeds are lower or there are other severe operating conditions.

Zinc-plated: these roller chains provide a very good adherence of the plating to the base metal and combines the strength of standard roller chains with the corrosion resistance that comes from zinc-plating. Zinc-plating of all components prior to assembly promotes uniform coverage during the plating process. Zinc plating is more cost-effective than nickel-plating.

The method of achieving internal lubrication of the chains is known as sintering and consists of the high quality oil impregnation of the components during their manufacture. The steel bushings are forged with lubricant within the material structure of the steel. During this operation, the lubricant forms a micro thin layer between the pin and internal roller surfaces. Self-lubricating chains provide excellent service life without relubrication. In addition, self-lubricating chain pins are nickel-plated to provide a very smooth running surface that will not cause the self-lubricating bushings to wear. The link plates are black phosphate coated. Self-lubricating chains are interchangeable with standard roller chains. The use of self-lubricating chains can substantially reduce elongation in many applications. This provides an increased service life of the chain. The SKF Xtra Performance SLR Chains can also be used as a base for attachment chains, which are commonly required in the printing and packaging industry.

Dacrotized chains: Dacrotizing is a process of metal coating. The compositions are proprietary water based coating dispersions containing metal oxides, metallic zinc and aluminium flakes. The zinc and aluminium platelets align themselves in multiple layers forming a metallic silver gray coating. Overlapping zinc and aluminium flakes provide an excellent protective barrier and the zinc corrodes to protect the steel. Due to the concentration of aluminum within the coating, the result is good bimetallic corrosion resistance. Damaged areas in the coating will fill with zinc oxides and carbonates, thus repairing itself. The dacrotizing process can be applied to numerous types of chains. For additional information, contact SKF.

SPH Chains: have specially designed, close tolerance link plates and pitch holes. Their special design can improve load carrying capacity by 25-32%. The pins used on these chains are thru hardened for greater shock load resistance. The dimensions of these chains are the same as ANSI standard roller chains.

SH Chains: have a 25-35% greater ultimate tensile strength than ANSI heavy duty roller chains due to their thicker plates and thru hardened pins. These chains can accommodate higher shock loads and provide longer service life, while retaining the same dimensions as ANSI heavy duty series roller chains.

SPH Chains: have specially designed, close tolerance link plates and pitch holes. Their special design can improve load carrying capacity by 25-32%. The pins used on these chains are thru hardened for greater shock load resistance. The dimensions of these chains are the same as ANSI standard roller chains.

SHH Chains: use link plates that, in most cases, are equal in thickness to the plates used in the next larger size of SKF Xtra Strength SPH Chains. Its pins are also thru hardened. The use of higher grade materials results in chains that have greater ultimate tensile strength and allowable load than SKF Xtra Strength SH Chains.

The method of achieving internal lubrication of the chains is known as sintering and consists of the high quality oil impregnation of the components during their manufacture. The steel bushings are forged with lubricant within the material structure of the steel. During this operation, the lubricant forms a micro thin layer between the pin and internal roller surfaces. Self-lubricating chains provide excellent service life without relubrication. In addition, self-lubricating chain pins are nickel-plated to provide a very smooth running surface that will not cause the self-lubricating bushings to wear. The link plates are black phosphate coated. Self-lubricating chains are interchangeable with standard roller chains. The use of self-lubricating chains can substantially reduce elongation in many applications. This provides an increased service life of the chain. The SKF Xtra Performance SLR Chains can also be used as a base for attachment chains, which are commonly required in the printing and packaging industry.

Zinc-plated: these roller chains provide a very good adherence of the plating to the base metal and combines the strength of standard roller chains with the corrosion resistance that comes from zinc-plating. Zinc-plating of all components prior to assembly promotes uniform coverage during the plating process. Zinc plating is more cost-effective than nickel-plating.

Nickel-plated: these roller chains combine the strength of standard roller chains with the corrosion resistant properties that come from the nickel-plating. Nickel-plating of all components prior to assembly promotes uniform coverage during the plating process. H2- approved.

H Chains: slightly differ from standard ANSI chains due to the fact that the thicker link plates correspond to the next larger size of ANSI roller chains. Therefore, H Series chains can accommodate approximately 10% higher shock loads. The ultimate tensile strength will be the same as a standard ANSI chain. SKF Xtra Strength H Chains are well suited for applications where shock loads are higher, operating speeds are lower or there are other severe operating conditions.

Stainless steel chains have superior corrosion resistance for the most demanding applications. SKF offers a variety of such chains for applications where a high level of cleanliness is required or harsh chemicals are used. SKF stainless steel chains are made from SS304 grade steel for high corrosion resistance and are available in BS and ANSI standards. SS316 and other stainless steel grades are available for higher temperature applications. The SS316 stainless steel is somewhat more resistant to the effects of magnetic permeability, temperature extremes and harsher chemicals.

SH Chains: have a 25-35% greater ultimate tensile strength than ANSI heavy duty roller chains due to their thicker plates and thru hardened pins. These chains can accommodate higher shock loads and provide longer service life, while retaining the same dimensions as ANSI heavy duty series roller chains.

Dacrotized chains: Dacrotizing is a process of metal coating. The compositions are proprietary water based coating dispersions containing metal oxides, metallic zinc and aluminium flakes. The zinc and aluminium platelets align themselves in multiple layers forming a metallic silver gray coating. Overlapping zinc and aluminium flakes provide an excellent protective barrier and the zinc corrodes to protect the steel. Due to the concentration of aluminum within the coating, the result is good bimetallic corrosion resistance. Damaged areas in the coating will fill with zinc oxides and carbonates, thus repairing itself. The dacrotizing process can be applied to numerous types of chains. For additional information, contact SKF.