A 4mm diameter 'O' ring with an internal diameter of 40mm. Made from Nitrile (NBR N70) rubber which is ideal for use as a drive belt on our wooden, plastic and aluminium 'V' pulleys. Suitable for use up to 70 Deg C.
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Asked by Richard Horton-Bradley | 16/07/2020, 09:12 | 1 answer(s)