Patent ID: 7080696
Filing Date: 2006-07-25
Classification: B25D,B25F,F16J

Abstract:
1. A sub-assembly for a motor of a hand held electrically powered tool comprising an armature shaft having a first end at which a pinion is formed, a motor plate having a central opening mounted around the armature shaft adjacent said first end and a first armature shaft bearing located between the motor plate and the pinion, characterized in that a moulded on resilient sealing ring is located around the central opening though the motor plate for sealing between the motor plate and the armature shaft and a moulded on resilient O-ring is located on the face of the motor plate facing the bearing for engaging the outer race of said bearing; wherein the resilient sealing ring and the resilient O-ring are moulded onto a metal ring which metal ring fits within the central opening of the motor plate.