Gasket cast bronze graphite plugged bronze bushings, also known as
oilless bearings, are a type of self-lubricating bearing system
that utilizes the unique properties of graphite and bronze to
provide superior wear resistance and durability.
These bushings are cast from bronze alloy, often C86300, which is a
high-tin bronze alloy that offers excellent corrosion resistance
and mechanical strength. The graphite plugs or inserts within the
bushings provide a continuous lubricating film between the moving
surfaces, eliminating the need for external lubrication.
The gasket design of these bushings allows for easy installation
and replacement, while also providing a seal against contaminants
and moisture. This ensures that the bearings remain in optimal
condition, even in harsh environments.
Graphite plugged bronze bushings are commonly used in a wide range
of applications, including robotics, heavy machinery, and
industrial equipment. They are ideal for applications where
lubrication is difficult or undesirable, as well as for
applications that require long-term reliability and durability.
In summary, gasket cast bronze graphite plugged bronze bushings, or
oilless bearings, offer a self-lubricating bearing solution that
provides superior wear resistance, durability, and ease of
installation and maintenance.
VIIPLUS China manufactures self lube wear plates that conform to
all industry standards ( manganese bronze,tin bronze,high strength
brass or aluminum bronze, either with or without self-lubricating
graphite.
Gasket Maintenance-free plain bearings with lubricating plugs of
CHINA VIIPLUS SLIDING BEARINGS | Maintenance-free plain bearings
with lubricating plugs are suitable for heavy loads, high
temperatures, vibrations and for use in corrosive environments.
Solid Bronze Metallic Self-lubricating Spacer Plug Graphite
Flang | VSB-50W
Cast Bronze Gasket Bearing Solid Bronze Washer
Copper Bronze alloy inlaying solid self-lubricating bearing
lubrication, combined with copper alloy wear resistance and
self-lubricating properties of solid lubricants, in the use process
without refueling maintenance.
Products are widely used in high load, swing or intermittent
movement, such as vehicle production lines, water turbine,
reservoir work/accident door, plastic machinery, etc. According to
the using condition, VIIPLUS can provide various types of copper
alloy.
Oilless bearings have been developed for high load, low speed
applications and are made of rotational cast high-strength bronze
using a specially formed graphite plug as lubricant.
Plain Bearings bearings have been developed for high load, low
speed applications and are made of rotational cast high-strength
bronze using a specially formed graphite plug as lubricant.
Our VIIPLUS plain bearings are available in metric and imperial
sizes from stock. Our in-house machining service is able to produce
non-standard sizes to suit specific customer requirements.
VIIPLUS range of oilless bearings are the perfect solution for
projects where lubrication cannot easily be provided or where
conventional lubricants may carbonise. The design of oil feeding
systems is time consuming and expensive
- The use of our oilless bearings can greatly reduce costs of
maintenance and oil as it removes any need for such a system.
·Kilns
·Dryers
·Injection moulding machines
·Dust collectors
·Louvres
·Hot conveyors
CHARACTERISTICS
WASHER Thrust washers
1. May work without any ol for long period
2. Extremely high load capacity, good anti-wear and lower friction
3. Particularly appropriate for low speed and high load
4. Suitable for reciprocating, oscillation or intermittent motion
where oil film is hard to be formed
5. Good chemical resistant and anti-corrosion characteristics
6. Can b€ used in wide range of temperature from -40℃-+300℃
VSB-50W WASHER material is made of strong cast bronze based metal with special
solid lubricants embedded. The base metal withstands high load and
the solid lubricants provide self-lubrication. The bearing shows
excellent performance without pre-lubrication under conditions of
extreme high/low temperature with low speed. This material provides
a maintenance-free bearing solution, particularly for high load,
intermittent of oscillating motion.
Grade | 50# | 50S1 | 50S2 | 50S3 | 650S5 |
Material | CuZn25AI5Mn4Fe3 | CuSn5Pb5Zn5 | CuAI10Ni5Fe5 | CuSn12 | CuZn25AI5Mn4Fe3 |
Density | 8 | 8.9 | 7.8 | 8.9 | 8 |
Hardness | ≥210 | ≥70 | ≥150 | ≥75 | ≥235 |
Tensile strength | ≥750 | ≥250 | ≥500 | ≥270 | ≥800 |
Yield strength | ≥450 | ≥90 | ≥260 | ≥150 | ≥450 |
Elongation | ≥12 | ≥13 | ≥10 | ≥5 | ≥8 |
Coefficient o linear expansion | 1.9×10-5/℃ | 1.8×10-5/℃ | 1.6×10-5/℃ | 1.8×10-5/℃ | 1.9×10-5/℃ |
Max.Temp. | -40~+300℃ | -40~+400℃ | -40~+400℃ | -40~+400℃ | -40~+300℃ |
Max.dynamic load | 100 | 60 | 50 | 70 | 120 |
Max.speed(Dry) | 15 | 10 | 20 | 10 | 15 |
N/mm²*m/s(Lubrication) | 200 | 60 | 60 | 80 | 200 |
Compression deformation | < 0.01 mm | < 0.05mm | < 0.04mm | < 0.05mm | < 0.005mm |
Chemical Compositions
Product NO. | Chemical Compositions |
TOB 050 | Cu | Zn | Al | Fe | Mn | Si | Ni | Sn | Pb |
60~66 | 22~28 | 5.0~8.0 | 2.0~4.0 | 2.5~5.0 | <0.1 | <0.5 | <0.2 | <0.2 |
AVAILABILITY
Bearing forms available in standard dimensions
· Cylindrical bushes
· Flanged bushes
· Sliding plates
Bearing forms made to order: standard forms in special dimensions,
thrust washers, flanged thrust washers, half-bearings, special
shapes obtained by stamping or deep drawing, customized bearing
designs
VIIPLUS oilless bearings benefit from outstanding chemical
and corrosion resistance. The lubricant used in these bearings is
formed from abrasion resitant materials (such as graphite, PTFE
etc) and has a stabilised molecular structure.
These oilless bearings are suitable for dry environments where
contamination is a risk, wet applications where there is high
humidity and applications where the bearing is in an inaccessible
location. VIIPLUS Oilless bearings are lubricated for life!
Please feel free to get in touch with our technical to ascertain
which would be the most suitable combination to suit your
application.
Type | Spec. | Type | Spec. | | |
THRUST WASHER | PLUGGED GRAPHITE | 30~10.2~3 | THRUST WASHER | 90~45.2~7 | |
THRUST WASHER | PLUGGED GRAPHITE | 40~12.2~3 | THRUST WASHER | 100~50.3~8 | |
THRUST WASHER | PLUGGED GRAPHITE | 40~13.3~3 | THRUST WASHER | 110~55.3~8 | |
THRUST WASHER | PLUGGED GRAPHITE | 50~14.2~3 | THRUST WASHER | 120~60.3~8 | |
THRUST WASHER | PLUGGED GRAPHITE | 50~15.2~3 | THRUST WASHER | 125~65.3~8 | |
THRUST WASHER | PLUGGED GRAPHITE | 50~16.2~3 | THRUST WASHER | 130~70.3~10 | |
THRUST WASHER | PLUGGED GRAPHITE | 50~18.2~3 | THRUST WASHER | 140~75.3~10 | |
THRUST WASHER | PLUGGED GRAPHITE | 50~20.2~5 | THRUST WASHER | 150~80.3~10 | |
THRUST WASHER | PLUGGED GRAPHITE | 55~25.2~5 | THRUST WASHER | 170~90.5~10 | |
THRUST WASHER | PLUGGED GRAPHITE | 60~30.2~5 | THRUST WASHER | 190~100.5~10 | |
THRUST WASHER | PLUGGED GRAPHITE | 70~35.2~5 | THRUST WASHER | 200~120.5~10 | |