Patent ID: 9638245
Date: 2017-05-02
CPC Classifications: B23B,B23D,B23Q,F16C,Y10T

Claim:
1. A pipe machining apparatus comprising: a frame; a tool carrier coupled to and movable relative to the frame, the tool carrier defining a race therein; a first roller bearing including a first shaft and a first roller rotatably coupled to the first shaft, wherein the first roller is at least partially positioned in the race and is rotatable about a first roller bearing axis adapted to remain substantially fixed relative to the frame; and a second roller bearing including a second shaft and a second roller rotatably coupled to the second shaft, wherein the second roller is at least partially positioned in the race and is rotatable about a second roller bearing axis, and wherein the second roller bearing is adjustable to move the second roller bearing axis relative to the frame; wherein the race includes an interior bearing surface and an exterior bearing surface, the interior bearing surface includes an indentation and the exterior bearing surface is substantially flat, and wherein the first roller includes a substantially flat outer part adapted to engage the exterior bearing surface and the second roller includes two angled engagement portions positionable in the indentation and adapted to engage the interior bearing surface.