128718K Angular contact thrust ball bearings for Downhole Motor

Product Details

Product Description

Product Description
Downhole motor bearings
INTRODUCTION OF BEARINGS STACKS
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.
SCHEDULE FOR OVERALL DIMENSION OF
SOME BEARINGS FOR SCREW DRILLING TOOLS(only parts for reference)

Model of Drilling Tools	Bearing model		Model of Drilling Tools	Bearing model
Model of Drilling Tools	Bearing Model	Overall Dimension		Bearing Model	Overall Dimension
LZ60	128705K	502575mm	LZ172	128718EA	15492330mm
LZ73	128807K	603691mm	LZ185	128718EK	16290380mm
LZ89	128708K	7442162mm	LZ197	128718KA	16090440mm
LZ95	128709K	7745180mm	LZ197	128718K	17090380mm
LZ102	128809K	8545220mm	LZ197	128820K	173100460mm
LZ105	128709K(LL)	8646220mm	LZ197	128819D	17595466mm
LZ120	128711K	9854240mm	LZ203	128720KAI	174100656mm
LZ120	128711K(LL)	10055190mm	LZ203	128720A	176100400mm
LZ127	128713EB	11065220mm	LZ203	128820D	180100466mm
LZ165	128717G(LL)	14484308mm	LZ216	128721K	188105418mm
LZ165	128816KBX	14580347mm	LZ216	128722EB	192110440mm
LZ165	128717KA	14584357.5mm	LZ244	128724K	215100465mm
LZ172	128817K	15085375mm	LZ244	128725EA	215125440mm
LZ172	128718KC	15290433mm	LZ244	128726E	215130418mm
LZ172	128717KB	15284338.5mm	LZ286	128729K	260145550mm

Product Description
Mud lubricating bearings for drill motor
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.
The bearings in a mud motor at the end of a drill string would place a huge influence on productivity and reliability in terms of oil drilling or gas drilling.The working condition of these mud motor bearings are extremely harsh: the bearings bear heavy axial and
shock loads, and they are also exposedwith highly abrasive mud.
• Special steel 55SiMoVA for all bearing components
• Full complement bearing
• Precision matched rings
• Unique bearing design to support heavy
• axial drilling loads
Application:
Oil drilling motor
Downhole motor
Electric submersible pump
Bearing life:
250hours
Main Customers:
Oil company like:SLB,Halliburton or GE
Main application:
Downhole motor or drilling motor
Product Description
The bearings in a mud motor at the end of a drill string would place a huge influence on productivity and reliability in terms of oil
drilling or gas drilling.The working condition of these mud motor bearings are extremely harsh: the bearings bear heavy axial and
shock loads, and they are also exposedwith highly abrasive mud.
• Special steel for all bearing components
• Full complement bearing
• Precision matched rings
• Unique bearing design to support heavy
• axial drilling loads
Application
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.
Downhole drilling motor bearings
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.
How the new bearing works ?
The typical mud motor bearing contains between 8 and 12 rows for design optimization. When the bearing is new, the majority of the load is accommodated by the first four or five rows. As each row starts to wear, the load is shifted to the next row and the next until all the rows are worn equally. Then, the load is shifted back to the first row and the process is repeated. This unique Monton design enables the bearing to last significantly longer than previous bearing designs.
About the redesign process
To significantly improve bearing performance and reliability,Monton engineers used proprietary Monton design and simulation tools to
• accurately define the behaviour of a bearing stack
• redesign the bearing to minimize stresses and optimise load carrying capacity
• test new designs and materials. With the Monton virtual test rig, engineers were able to identify and correct the problem of cracked rings and sheared balls – two common problems with these bearing
Customer benefits
• Improved wear-resistance
• Increased load carrying capacity
• Optimized load distribution
• Increased robustness
• Improved reliability
• Customized design

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