replace bearing on bench saw?

i have a performance table/bench saw and the bearing has gone on the motor driveshaft.i've rung various numbers on internet including b&q where it came from but to no avail.can i replace the bearing or do i have to purchase another motor.it seems a pity to throw away a good saw for the sake of a simple bearing.stores like b&q should not sell equipment that cannot be repaired by the customer.model no.fmtc 1500 tk 05038350.