Patent ID: 8042432

Claim:
An oilfield tubular torque wrench comprising: an upper tong including a recess for accepting an oilfield tubular positioned along an axis passing through the recess; a lower tong including a recess positioned below the recess of the upper tong so that the axis passes therethrough; pipe gripping dies in the recesses of the upper tong and the lower tong drivable toward and away from the axis; and a swivel bearing between the upper tong and the lower tong permitting the upper tong and the lower tong to swivel relative thereto while the recesses remain positioned with the axis passing therethrough, the swivel bearing including a first partial ring mounted to one of the upper tong and the lower tong and a second partial ring mounted on the other of the upper tong and lower tong, the second partial ring being interengaged at a bearing surface to ride along a length of a bearing surface of the first partial ring and the bearing surface of the second partial ring being formed of a material different than the material of the bearing surface of the first partial ring.