TONG BEARING

摘要

A renewable bearing is for a tong including a housing and an engagement assembly. The bearing has a monolithic upper bearing element having a substantially planar upper surface and a monolithic lower bearing element having a substantially planar lower surface. The upper and lower bearing elements are configured to mount inside the housing with a substantially same outer horizontal profile as the upper bearing element. The upper bearing element and the lower bearing element define a central open area. The upper bearing element and the lower bearing element have an inner section define a radial recess opening to the central opening and for receiving the engagement assembly. The upper bearing element and the lower bearing element have outer sections that form a bearing portion radially intermediate the engagement assembly.

主权项

1. A bearing for a tong, the tong including a housing and an engagement assembly, the bearing comprising:
a monolithic upper bearing element having a substantially planar upper surface; a monolithic lower bearing element having a substantially planar lower surface, the upper and lower bearing elements being configured to mount inside the housing with a substantially same outer horizontal profile as the upper bearing element; the upper bearing element and the lower bearing element defining a central open area; the upper bearing element and the lower bearing element having an inner section; the upper bearing element and the lower bearing element having an outer section wherein when assembled, the outer sections of the upper bearing element and the lower bearing element form a bearing portion radially intermediate the engagement assembly.