LUOYANG MONTON BEARING SCIENCE & TECHNOLOGY CO.,LTD. |
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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 | ||
Bearing Model | Overall Dimension | Bearing Model | Overall Dimension | ||
LZ60 | 128705K | 50*25*75mm | LZ172 | 128718EA | 154*92*330mm |
LZ73 | 128807K | 60*36*91mm | LZ185 | 128718EK | 162*90*380mm |
LZ89 | 128708K | 74*42*162mm | LZ197 | 128718KA | 160*90*440mm |
LZ95 | 128709K | 77*45*180mm | LZ197 | 128718K | 170*90*380mm |
LZ102 | 128809K | 85*45*220mm | LZ197 | 128820K | 173*100*460mm |
LZ105 | 128709K(LL) | 86*46*220mm | LZ197 | 128819D | 175*95*466mm |
LZ120 | 128711K | 98*54*240mm | LZ203 | 128720KAI | 174*100*656mm |
LZ120 | 128711K(LL) | 100*55*190mm | LZ203 | 128720A | 176*100*400mm |
LZ127 | 128713EB | 110*65*220mm | LZ203 | 128820D | 180*100*466mm |
LZ165 | 128717G(LL) | 144*84*308mm | LZ216 | 128721K | 188*105*418mm |
LZ165 | 128816KBX | 145*80*347mm | LZ216 | 128722EB | 192*110*440mm |
LZ165 | 128717KA | 145*84*357.5mm | LZ244 | 128724K | 215*100*465mm |
LZ172 | 128817K | 150*85*375mm | LZ244 | 128725EA | 215*125*440mm |
LZ172 | 128718KC | 152*90*433mm | LZ244 | 128726E | 215*130*418mm |
LZ172 | 128717KB | 152*84*338.5mm | LZ286 | 128729K | 260*145*550mm |
Lubrication Mud Motor Bearings , Mudstack Thrust Bearings For
Downhole Drilling Tools
Monton solutions for downhole drilling tools
Whether you’re drilling for oil or gas, drill strings must endure
extreme operating conditions. Monton solutions for downhole
drilling tools are designed to increase performance and
reliability.
Cylindrical thrust bearings
To provide superior axial thrust load support for sealed motors,
Monton’s cylindrical thrust bearings are manufactured to the
highest quality standards. The contact surfaces between the rollers
and the raceways, and the internal geometry are all controlled to
extremely tight tolerances to improve performance compared to
low-quality cylindrical thrust bearings available in the
marketplace.
Tungsten carbide radial bearings
Specially designed to provide excellent radial load support for
both sealed and mud motors, Monton tungsten carbide radial
bearings are made using a unique microwave sintering process
(resulting in 1 600 Vickers hardness) as compared to typical
conventional sintering (with 1 000 Vickers hardness). This results
in a high hardness of 92 HRa for excellent wear resistance and
longer life.
Downhole sealing solutions
Monton has innovative seal designs and quality materials for
downhole rotating seals exposed to high pressure. The
Monton Teflathene seal incorporates a low-friction PTFE seal
ring bonded to a rubber body. The all-rubber DM2 seal separates
drifting mud from lubricants in oil-lubricated mud motor bearings.
Bottom hole assembly (BHA) tools such as shocks and jars require
seals to protect the tool hydraulics from the abrasive drill muds
and cuttings in the hole. Measure-while-drilling (MWD) tools
sometimes require high-temperature sealing
solutions.Monton has developed a full line of field-proven
seals to work in this demanding environment, including a seal
capable of withstanding up to 315 °C (600 °F).
Mudstack thrust bearings
Mud bearings close to the drill string end have a major impact on
productivity and reliability. 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. Monton’s mudstack bearings are optimized for our
customers’ applications through rigorous finite element analysis
and physical lab tests by testing the bearings with drilling mud
circulating through them.
Monton mudstack bearings provide:
• Improved wear resistance
• Increased load-carrying capacity
• Optimized load distribution
• Increased robustness
• Improved reliability
• Customized design
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:
Oil drilling motor
Downhole motor
Electric submersible pump
Bearing life:
200hours
Main Customers:
Oil company like:SLB,Halliburton or GE
Main application:
Downhole motor or drilling motor
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
Product features
• Special steel for all bearing components
• Full complement bearing
• Precision matched rings
• Unique bearing design to support heavy axial drilling loads
Customer benefits
• Improved wear-resistance
• Increased load carrying capacity
• Optimized load distribution
• Increased robustness
• Improved reliability
• Customized design