Drylin R linear bearings replace bearing guides
An
Igus UK product story
Edited by the Engineeringtalk editorial team
Feb 23, 2009
Igus UK has introduced Drylin R linear plain bearings, which are lubricant-free, robust and corrosion-resistant.
Drylin R linear plain bearings are based on wear-resistant polymers developed especially for linear technology.
The linear bearings with highly wear-resistant polymers are replacing metallic bushings in many cases.
The standard gliding-films are made of Iglidur J material for excellent gliding friction coefficients.
The high-temperature gliding films made of Iglidur X allows use with a long-term application temperature of up to 250C.
The dimensions of linear plain bearings are compatible with those of linear ball bearings.
Drylin bearings run on standard round shafts and can be used with most shaft materials.
Even if damp dirt does get onto the shaft, it is wiped off by the individual slide-ways and pushed back into the contactless paths.
The bridges of the bearing surfaces then slide over the path, which has been wiped free of all soiling.
The Drylin R range comprises of gliding films and press-in bushings, linear plain bearings, housing bearings, flange housings as well as slides and linear housings.
Suitable shafts, supported shafts, end blocks and shaft brackets are all available ex-stock.
The linear bearings are replacing metallic bushings in many cases.
In a seat-cover testing machine in the Lear Corporation, the American automotive components supplier, the Drylin R flange bearings have been functioning without failure for more than one and a half years.
In contrast, the linear guidance systems used previously had to be replaced after only three months of use.
The load exerted on them is high in both Y and Z direction and normally runs at a short stroke of 10 to 40mm.
Another example can be found at the Poppe Gummiwarenfabrik rubber factory in Giessen.
Here, ball bearings used in a cutting unit for rubber hoses failed after only six months, mainly because of heavy talcum soiling.
In the meantime, self-adjusting Drylin R linear plain bearings have been performing competently for the past five years.
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