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Unlike the less expensive polyurethane tyred wheels shown ´Polyurethane Tyre´ which have the tyre bonded directly to the wheel centre, ´Press-on Band´ wheels have the tyre bonded to a thin steel band which is press-fitted to the wheel centre allowing the tyre to be replaced when worn.
MATERIAL: Wheel centre - cast iron to BS1452: 1977: Grade 200 or steel to BS970: Part 1: 1983: 080M4O
Tyre - Polyester based polymer of 92º ± 3ºA Shore hardness.
OPERATING TEMPERATURE RANGE:
-20ºC to +60ºC (115ºC for limited intermittent use).
PLEASE SPECIFY IF OPERATING IN HIGH HUMIDITY.
Anti-hydrolysis polyurethane is recommended for use in an operating environment of high humidity.
Polyurethane to the above hardness used on these wheels is Vulkollan, a high quality material that provides superior performance in most applications.
Should the mechanical properties of Vulkollan be inappropriate for the application, alternative grades of Polyurethane can be produced to meet the requirements. Polyurethane can be bonded onto most metal centres including aluminium, titanium, stainless steel and various ferrous and non-ferrous alloys.
The ´maximum load rating´ given for each wheel is for operation under ideal conditions. Load factors must be applied according to the anticipated working conditions - see ´Design Data´ para. 4.1.
Alternative bore/bearing diameters and alternative bearing types (i.e. bronze bushes, self-lubricating bushes, roller bearings, spherical roller bearings, etc.) are available to order - see ´Design Data´ para. 6.0.