The Metal-Polymer Bearings POM Bushing, made from Polyoxymethylene
(POM) or also known as Acetal, is a high-performance bushing that
offers exceptional properties such as wear resistance, rigidity,
dimensional stability, and good fatigue strength. POM bushings are
commonly used in applications where precision, durability, and low
friction are critical.
POM, as a material, has excellent mechanical properties and is
resistant to many chemicals, solvents, and fuels. This makes it
suitable for use in a wide range of industries, including
automotive, machinery, and electronics.
Metal-Polymer Bearings, as a manufacturer, is renowned for its
high-quality products and precision engineering. Metal-Polymer
Bearings POM bushings are precision-manufactured to ensure accurate
fits and smooth operation. They are often used in bearings, slides,
and other moving parts where low friction and long-lasting
performance are essential.
The combination of POM's material properties and Metal-Polymer
Bearings's manufacturing expertise results in a bushing that is
reliable, durable, and able to withstand the rigors of demanding
applications. Whether it's a high-speed machinery component or a
precision-engineered bearing, Metal-Polymer Bearings POM bushings
are a trusted choice for ensuring smooth and efficient operation.
Metal-Polymer Bearings POM Bushing type available in standard dimensions, Cylindrical bushes, flange
pom bushing, split steel-backed bushes, and Composite Thrust
washers made to order from china.
steel backed copper bushing
COMPOSITION
- Metal-Polymer Composite Bushing Material
- Steel Back + Porous Bronze Sinter +
- POM with Lubrication Indents
POM Bushing Size Chart, POM
Bushings Solutions For Industrial Replacement POM Gleitlager
Bushings Sourcing Service
All the high-quality sleeve bushings products you need are in China. Tell us! We will
immediately select the suitable self-lubricating sleeve bushings
for you. Contact us today!
| Physical & Mechanical Properties |
| Item | Value | Unit | | Maximum Operating Temperature Tmax | 130 | °C | | Minimum Operating Temperature Tmin | -140 | °C | | Maximum Static Load Pasta, max | 140 | N/mm2 | | Maximum Dynamic Load Pdyn, max | 70 | N/mm2 | | Maximum Sliding Speed V-greased | 2.5 | m/s | | Maximum PV Factor-greased | 2.8 | N/mm2 * m/s | | Coefficient of friction f-greased | 0.06-0.12 | 　 |
|
| Usage Range |
| dry | poor | | oil lubricated | good | | grease lubricated | very good | | water lubricated | poor | | process fluid lubricated | poor |
|
| Possible Application |
Automotive:
Steering gear, power steering, pedal bushes, seat slides, king-pin
bushes, tailgate pivots, brake caliper bushes, etc.
Industrial:
Mechanical handling and lifting equipment, machine slides,
hydraulic cylinders, hydraulic motors, ski-lifts, pneumatic
equipment, textile machinery, agricultural equipment, scientific
equipment, etc. |
| Standard Parts Available |
| Cylindrical Bush | Thrust Washer | Strip / Plate |
| | |
| Metric | Inch | Metric | Inch | Metric | Inch |
Self-Lubricating Sleeve Bearing
Composite Self-Lubricating Bushings
VIIPLUS tribology solution is never limited by materials and
shapes. How can you find the most suitable solution in the fastest
way?
Made to order from china http://www.bronzegleitlager.com, quickly find the size parameters and other information needed by
the engineer
Tribology solution in the field of Automotive water pump & valve :
Characteristics
- POM marginally lubricated bushings for grease or oil lubricated
applications
- Standard parts contain grease indents in the sliding layer; plain
sliding layer available by request
- Optimum performance under relatively high loads and low speeds
- Suitable for linear, oscillating and rotating movements
- Wide range of parts available from stock
Structures
1.POM thickness 0.30~0.50 mm, it provides high wear resistance and low friction even with only minute volume of lubricant are supplied, this
bearing surface carries a pattern of circular indents which should
be filled with grease on assembly of the bearing.
2. Sintered bronze powder thickness 0.20-0.35mm, provides max.
thermal conductivity away from the bearing surface, also serves as
a reservoir for the resin mixture.
3. Low-carbon steel, provides exceptionally high load carrying capacity, excellent
heat dissipation.
4. Copper/Tin plating thickness 0.002mm, provides good corrosion
resistance.
Typical Applications
Recommended for applications involving intermittent operation or
boundary lubrication...
Automotive: suspension joints, kingpin assemblies and stub axles of
tucks, automobile driving joint hinges, steering and other
linkages, articulation joints, rear chassis hinges, fair leader
rollers...
Machine tool building industry: spindles in drill, grinding, and
milling machines, ram guide plates in multi-ram presses...
Agricultural equipment: gearbox, clutch, bale trips and wheel
caster swivels for bale accumulators, front axle pivot bearings,
steering idler box bearings and kingpin bearings for harvesters...
It is especially well-suited for applications where lubricant can
not be supplied continuously or repeatedly.
Self-lubricating sleeve bearing POM bearing
High load capacity
Excellent impact resistance and self-centering performance
Excellent anti-pollution performance
Good friction and wear resistance
Good resistance to chemical corrosion
Good dry friction performance
Product Description
POM is a triple layer bearing consisting of a copperplated steel
frame, a middle layer of sintered bronze, and a self-lubricating
sleeve bearing surface of acetal plastic (POM).
The self-lubricating sleeve bearing surface is provided with grease
pockets which embeds the lubricant for gradual
release during operation. The slip layer also has a good ability to
embed dirt and small particles that could damage the shaft. POM can
withstand relatively high loads and is suitable for rotary and oscillating movements and
structures with frequent starts and stops.
Assembly
POM self-lubricating sleeve bearing are not to be worked on (no bore or grinding). Nor on the inside
or the outside diameter. They are already prepared for assembly.
The bearings are so designed that when press-fitting the bearing
into the housing, the mating gap can be eliminated. However, the
mating-point of the self-lubricating sleeve bearing should be
positioned away from the load-zone.
Cutting or sticking
Always cut or stick the sliding plate (sheets or washers) from the
sliding surface towards the steel surface. self-lubricating sleeve
bearing is to be cut from the inside towards the outside. This is
to prevent the three layers from dividing. Therefore always start
from the soft layer towards the harder layer.
It also helps you to keep any burrs in the right direction (not
towards the sliding surface).
Please don´t hesitate to contact us if further information is
needed.
Lubrication
self-lubricating sleeve bearing, washers, or sheets of the brand POM-self-lubricating sleeve bearing are pre-lubricated, and therefore lubrication
through grease or oil is to recommend. Through adding oil-resin
into the POM-mix, our POM-steel sleeve bearing bushings are
actually capable of running a while ”dry”, without breaking. Any
type of grease, oil, or another lubricant can be used since the POM
layer is not sensitive in any way for the chemical reaction of
additives in lubricants.
Special manufacturing
On request, we can offer inch-sizes, special lengths, items acc. to
drawing
| Technical data | |
| Material: | Steel frame/sintered/acetal resin sliding layer |
| Standard: | Multilayer bearings |
| Sliding layer (thickness): | 0.3-0.5mm |
| Tensile strength Rm: | - |
| Yield strength Rp 0.2: | - |
| Elongation in % A10: | - |
| Hardness: | - |
| The coefficient of friction | 0.05-0.25µ |
| Thermal conductivity: | 40W/m·K |
| Temperature range: | -40°C/110°C |
| Max. load static: | 140N/mm² |
| Max. load, dynamic: | 70N/mm² |
| Max. sliding speed (w.lubr.): | w/o lubricate. 2.5m/s – With lubricating. 5m/s |
| Pv-value, Mpa x m/s, | 3 |
| |
| |
| Counter material | |
| Recommended shaft hardness: | >180HB |
| Rec. shaft surface roughness (Ra) | 0.4 |
| Recommended tolerance: | f7/h8 |
| House: | H7 |
DIN ISO can be used to select the appropriate size to replace the
same size grease-lubricated copper sleeve
Multi-layer bearings with acetal sliding layer.
Characteristics
-- Suitable for dirtyand| as well as challenging environments
-- maintenance(pre-lubricated).
-- Long life
Areas of use.
Forest, packaging and, farming, machinery
food market, hydraulic cylinders, etc
Shapes
Plain cylindrical bearings, thrust washers well as sliding plates.
Making Business A pleasure
VIIPLUS offers a variety of services to our global customer base
that will enhance the experience of purchasing valves Bushing &
Bearings from VIIPLUS and add value to your investment from
pre-sales consultancy to continuous aftersales service.
VIIPLUS self-lubricating sleeve bearing Material provides high-end
casting to our valve divisions including materials like (low
temperature) carbon steel/ stainless steel/ Bushing POM Bushes and
high bronze alloy steels self-lubricating sleeve bearing. All
analyses regarding the mold and pattern designs are being performed
in our own premises in order to guarantee a constant casting level
and quality.
Characteristics
VSB-20 Boundary self-lubricating sleeve bearing High-Quality POM Bush China Manufacturer
· marginally self-lubricating sleeve bearing for grease or oil
lubricated applications
· Standard parts contain grease indents in the sliding layer; plain
sliding layer available by request
· Optimum performance under relatively high loads and low speeds
· Suitable for linear, oscillating and rotating movements
· Wide range of parts available from stock
Typical Applications
Suitable for rotating and oscillating movement, fewer maintenance
requirements due to the long re-lubrication intervals, lower wear,
lower susceptibility to edge loading, no absorption of water and
therefore no swelling, good damping behaviors, good resistance to
shock loads.
It is recommended to be used for initial grease self-lubricating
sleeve bearing. This material has good wear resistance and can be
used under medium and high load, impact and dust resistance
conditions. Such as truck or commercial vehicle axle, brake,
suspension system, as well as agricultural machinery, forest
machinery, logistics equipment, and other general industrial plain
bearings, can replace the general copper sleeve, steel sleeve.
Structure
1. POM thickness 0.30~0.50 mm. It provides high wear resistance and
low friction even with the only minute volume of lubricant are
supplied, this self-lubricating sleeve bearing surface carries a
pattern of circular indents which should be filled with grease on
assembly of the bearing.
2. Sintered bronze powder thickness 0.20-0.35mm. A special
composition of powdered copper is thermally fused to the steel
backing. This contact layer acts as an anchor for the layer and
conducts the thermal build up away from the self-lubricating sleeve
bearing surfaces.
3. Low-carbon steel.Setting the foundation of the self-lubricating sleeve bearing, the
steel back provides exceptional stability, load carrying, and heat
dissipation characteristics.
Structure And Composition
· Metal-Polymer Composite Bushing Material
· Steel Back + Porous Bronze Sinter +
POM with self-lubricating sleeve bearing Indents
OPERATING PERFORMANCE |
Dry | Poor |
Oil-lubricated | Good |
Grease lubricated | Very Good |
Water lubricated | Poor |
Process fluid lubricated | Poor |
Avaibearing Properties
Max. load | Static | 250N/mm2 |
Dynamic | 140N/mm2 |
| Rotating oscillating | 60N/mm2 |
Max. speed | Dry | 2m/s |
Lubrication | >2m/s |
Max. PV (Dry) | Short-time | 3.6N/mm2*·m/s |
Continuous | 1.8N/mm2*·m/s |
Temp. | -195℃~+280℃ |
Friction coefficient Dry | 0.03~0.20 |
Lubrication | >2m/s |
Thermal conductivity | 42W (m·k)-1 |
Coefficient of thermal expansion | 11*10-6k-1 |
Availability
self-lubricating sleeve bearing forms available in standard
dimensions
· Cylindrical bushes
· Thrust washers
· Sliding plates
Metric self-lubricating sleeve bearing and imperial bushings made
to order: standard bushing forms in special dimensions,
half-bushings, special shapes obtained by stamping,
self-lubricating sleeve bearing with locating notches,
self-lubricating sleeve bearing holes and machined grooves,
customized self-lubricating sleeve bearing designs
Stock Size for Self Lubricating Bearings
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Bushings | VIIPLUS Surface Engineering|Bearing Technology
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