A quick guide to wheel variations

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This guide will introduce the different characteristics of wheels that can be used to make equipment mobile, making it easier to choose the correct combination for your application. All of the wheels are available from as a wheel only format or in a bracket as a castor from Rolltek.

Hard Tread Wheels - the easiest to push as they have least tractive resistance. The main disadvantage is that they are noisy and can wear floors excessively. The main types of hard wheels are as follows..

Cast Iron and Steel - combine shock resistance with long life and economy. Temperature range -40c to +300c

Nylon - has high load capacity, is light and clean and causes little floor damage. Temperature range  -40c to +80c

Polypropylene - has good load capacity but not the abrasion or fracture resistance of nylon. Operational temperature range -20c to +80c

Phenolic - very hard, abrasion and fracture resistant but liable to wear and chipping. High operational temperature range up to +350c

Soft Tread Wheels - are resilient generally resulting in less noise, marking and floor wear. Tractive resistance is however much higher. New development grades of polyurethane and rubber have increased load capacities while reducing tractive resistance. ..

Solid Rubber - the basic wheel, although new thermoplastic grades are harder wearing and low cost. Temperature range -20c to +60c

Elastic Rubber - has a high load capacity and wear resistance with a smooth soft-cushioned ride. Temperature range -20c to +60c

Polyurethane - has a very high load capacity with abrasion, tear and chemical resistance and a soft ride. Temperature range -30c to +90c

Anti-static - Non-marking material. Has a high load capacity with abrasion, tear and chemical resistance and a soft ride. The wheels we supply have less than 104 ohm electric resistance. Each individual wheel is subjected to electrical testing. Temperature range -20oc to +70oc

Pneumatic - has excellent shock absorption working well on rough, uneven surface like gravel or grass. Temperature range -20oc to +60oc

Micro Cellular - this wheel behaves in a similar way to a pneumatic wheel, but has a micro cellular infill which allows the wheel to keeps its bounce without the risk of puncturing. Temperature range -20oc to +60oc

High Temperature - wheels now available with rubber tyres suitable for use in the temperature range  -30oc to +250oc

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