128708K 42*74*162mm Mud motor bearings drill motor bearings

Our main bearings products including bearings of petroleum screw drilling tools, equal-wall-thickness rubber stator of petroleum screw drilling tools, roller bearings(bearing roll),55SiMoVa or 8620 steel ball of three-roller rock bit, roller, thrust block and pad as well as hobbing cutter shaft of coal mine development, and main and supporting components and parts of construction machinery. The bearings for petroleum screw drilling tools(multi-row thrust ball bearings)are our leading products developed and filled the gap of China in 1980s.Up to now, there are more than 20 series including over 200 models.

Whether you’re drilling for oil or gas, the bearings in a mud motor at the end of a drill string have a direct impact on productivity and reliability. These mud motor bearings have to endure extreme

operating conditions. In addition to severe axial and shock loads, these bearings are “lubricated” with highly abrasive mud, which for a bearing is the definition of an extreme operating condition.

Down hole motor or drilling motor for the oil drilling industry

Bearing Assembly of Downhole Motor is used to transmit motor rotary dynamic force to the bit, meanwhile to withstand axial and radial load from drilling weight. Inside of the Bearing Assembly,Monton uses TC Radial Bearing and a stacked thrust bearings. The thrust bearings support the downward force resulting from the “weight on bit” (WOB) and the loads from the combination of hydraulic thrust and weight loads from internal components.Monton provides different bearing assemblies, designed to meet the diverse requirements of the drilling industry.

Mud Motor Radial Bearing

A mud motor bearing assembly, comprising: a stationary housing having an inner wall surface defining an interior bore; a rotatable drive shaft extending through the interior bore of the stationary housing, the rotatable drive shaft having a tubular drive shaft with a uniform outer diameter terminating at an outlet section with an enlarged outer diameter, the rotatable drive shaft including an inner bore for passage of a drilling fluid; a bearing section bearing a radial load and an axial load, the bearing section including at least a pair of stationary bearing rings and at least a pair of rotating bearing rings in stacked arrangement, each of the stationary bearing rings having an inner periphery and an outer periphery, the outer periphery of each of the stationary bearing rings operatively engaged to the inner wall of the stationary housing, the inner periphery of each of the stationary bearing rings including a projection, each of the rotating bearing rings having an inner periphery and an outer periphery, the inner periphery of each of the rotating bearing rings operatively engaged to the tubular drive shaft, the outer periphery of each of the rotating bearing rings including a projection, the projections of the pair of stationary bearing rings forming a recess that accommodates the projection of one of the pair of rotating bearing rings in sliding engagement; wherein the stacked arrangement alternates between at least partially overlapping stationary bearing rings and rotating bearing rings.