Portuguese to English Tech/Engineering Engineering: Industrial Cold repair of cracked bearing housing

I understand basically what they talking about but as this is for an institutional type release I must get the terms correct, 'furo de mancal' ? what do they mean here, a hole, an orifice, an aperture ??


Na International XXXXXXXX – Subsidiária da XXX, uma caixa redutora apresentava trinca no furo do mancal até o alojamento do rolamento e outra na parte inferior do mancal.