oilless bearing
BRONZE BEARING

Get Your Oilless Bearing Within The Quoted Time With Our High-Speed And Efficient Processes

With our advanced technology, we never fail to deliver your oilless bearing on time. At Viiplus, we have specialized technologies for each kind of oilless bearing service. With the use of advanced controls and methods, the speed and efficiency are increased multi-folds. Our knowledgeable team understands every process, hence our delivery time is faster.

Top quality

Our oilless bearings are the perfect solution for projects where lubrication cannot easily be provided or where conventional lubricants may carbonize. The use of our oilless bearings can greatly reduce costs of maintenance and oil.

High Performance

Our oilless bearings are graphite-loaded and can withstand temperatures of up to 400°C (800F) as well as cryogenic temperatures down to -200°C (-400°F) depending on which material is selected. developed for high load, low-speed applications

BRONZE BEARING

Offering The Custom For Your Oilless Bearing At Our Specialized Centers

Whether you want a flange graphite bushing or just a standard oilless bearing, Viiplus is the best choice. For a variety of bearing services for your business, according to your detailed requirements, and delivers your batch with the utmost precision.

VIIPLUS Oil-free Bearing

It can replace rolling bearings and copper alloy bearings in high-pressure, high-temperature, and high-accuracy applications. Structure: High strength casting bronze embedded with solid lubricants.Features: Cost-effective; Adaptable; Wear-resistant; Obvious advantages when used under high-load and oil-free conditions; Solve special needs in environments that generally cannot be met by copper bushings.

Produce with high-end equipment; Use digital application technology; High product accuracy; Small geometric tolerance; International-level solid lubrication performance.

oilless bearing

Oilless Bearing

Leading Graphite Plugged Bushing Supplier – Precise Oilless Bearing

We supply Graphite plugged bushing with Technical Support. Global Supply. Top Quality, Consistency.

bronze wear plate

HIGH PERFORMANCE

Quality control in the self-lubricating bearing

In the industrial world, there are various types of bearings to choose from. The application of machinery that you are running, will dictate what bearing you purchase. Oilless bearings are manufactured from a material that incorporates its lubrication in the form of powdered graphite. These types of bearings are also known as self-lubricating bearings. Oil-free bearing is a novel lubricating bearing that combines the characteristics of metal bearing and oil-free bearing. It has the characteristics of high bearing capacity, impact resistance, high-temperature resistance, strong self-lubricating ability, etc. It is especially suitable for heavy loads, low speed, reciprocating or swinging, and other occasions where it is difficult to lubricate and form oil film, and it is not afraid of water and other acid erosion. and scour. As a result, there is no oil or external lubricant required for these bearings to operate at their best. Some of the basic advantages of making use of these types of bearings are as follows:

  • There is little to no extra lubrication required in order for the bearing to be functional.
  • Friction is well-managed by these bearings and resistance performance is good.
  • Mechanical accuracy can be ensured with the quick and effective response and functioning of the bearing.
  • Oilless bearings can reduce mechanical vibration and reduce operating noise.

HIGHLY EXPERIENCED SUPPLIER

Viiplus as a partner in the every industry

Oil-free lubrication or oil-less lubrication is suitable for places where refueling is impossible or difficult. It can be used with no or little maintenance, and it also avoids the risk caused by insufficient oil supply.
No fuel supply required
No oil supply device is required, and there is no need to refuel during the work process, so it can save a lot of installation and operation costs. Oil-free can greatly simplify the design, structure, etc., reduce costs, save design time,
Green
There is no need to recycle waste oil, which is conducive to environmental protection.
Reduce requirements for abrasives
The hardness of the grinding shaft is low, and the shaft without quenching and tempering treatment can be used, thus reducing the processing difficulty of related parts.
High and low temperature resistance
High and low temperature resistance, the applicable temperature of some products is -200℃ to 400℃.

oilless bearing bushing

Application Of Oil-free Lubricated Bearings

Engineering construction machinery
Crank arm bushing, idler bushing, oil cylinder, gear oil pump, driven wheel, driven wheel, rotary table, Grab joints, and other parts.
Plastic rubber machinery
Crosshead, mold clamping, oil cylinder, machine hinge, operating mechanism, and other parts of the injection molding machine, tire vulcanizing machine, bottle blowing machine, molding machine, and other machinery.
Car parts
Transmission, differential, clutch, balance axle, connecting rod bushing, throttle body, tensioner, turbocharger, fuel injection pump, idler gear, oil pump, rocker arm bushing, shock absorber, steering gear, Steering resistance pump, hinge, wiper, and other parts.
Office Equipment Fitness Equipment
Copiers, printers, fitness equipment, sewing machines, and other machinery that require transmission or reciprocating motion.
Die guide bush
The guide, oblique wedge, positioning, guide rail, and other parts of the mold
Food and medicine machinery
Because of the high requirements for the production environment, the rotating and reciprocating parts of food machinery and medical machinery

The Failure Mode Of Oilless Bearing

Abrasive wear

Some of the hard particles entering the bearing clearance rotate with the shaft and grind the bearing surface.
Scratch
The hard particles entering the bearing clearance or the micro-profile peaks with a rough surface of the shaft diameter draw linear scars on the bearing surface.
Glued
When the instantaneous temperature rise is too high, the load is too large, the oil film is broken or the oil supply is insufficient, the bearing surface material adheres and migrates, causing bearing damage.
Fatigue Peeling
Under the repeated action of the load, fatigue cracks perpendicular to the sliding direction appears on the bearing surface, which will cause the bearing material to peel off after expansion.
Corrosion
The lubricant is continuously oxidized in use, and the generated acid substance corrodes the bearing material, and the material corrodes easily to form point-like spalling. There are also cavitation fluid erosion and electrical erosion.

Technologies for top performance

We’re here to help

Stepping forward together with our customers. Our standard Oilless Parts:

  • Guide bushes and thrust washers
  • Sliding plates, wear strips, thrust washer, etc.
  • VDI standard sliding elements
  • CAM-Units and related components
  • Guide bush
  • Inclined ejector units for injection molding machines
graphite bearing
graphite plugged bronze bushings

Oil-free Bearing

graphite plugged bushing

Flange Bearing

oilless thrust washer

Oil-free Washer

oil-free slide plates

Oil-free Plate

Oilless Bearing (Straight Column Type)

Shop for all your Oil-Free Slide Bearings and Plates and Oil-free Bushes needs. … Wear Strips – Bronze-Plated – Self-Lubricating – Metric and Inch. Manufacturer of Oilless Bush – Self Lubricating Bush & Bronze Bearing!

The

Tolerance


Table
The inner diameter 4~6 8~10 12-18 19-30 32-50 55-80 85-120 125-180 190- 200
The

Tolerance
0.022 0.028 0.034 0.041 0.050 0.060 0.071 0.083 0.096
0.010 0.013 0.016 0.020 0.025 0.030 0.036 0.043 0.050
Outer Diameter 6~10 12-18 19-30 32-50 55-80 85-120 130-180 190-230  
The

Tolerance
0.015 0.018 0.021 0.025 0.030 0.035 0.040 0.046  
0.006 0.007 0.008 0.009 0.011 0.013 0.015 0.017  
  • Realization self-lubrication
  • Bushes & thrust washers

  • Oil-Free Slide Plates

Choose Your Base Material

Solid-lubricants Oilless Bushings

Material China International Germany Japan America England Italy Applicable conditions
Codes GB1176-87 ISO 1338 DIN JIS ASTM(UNS) BS JM
Casted Bronze ZCuZn25Al5 GCuZn25Al6 DIN1709 H5102 B30-92 HTB2 JM18-1 High-load, low-speed Commonly used
Mn4Fe3 Fe3Mn3 G-CuZn25Al5 CAC304 C86300
Oilless Bronze Bushing ZCuSn5 GCuPb5 DIN1705 H5111 B30-92 LG2 JM1-15 Mid-load, low speed Commonly used
Pb5Zn5 Sn5Zn5 G-CuSn5ZnPb BC6 C83600
Oilless Bronze Bushing ZCuAl9Fe4 GCuAl10 DIN17656 H5114 B30-92 AB2 JM7-15 Mid-load,mid-speed, Commonly used
Ni4Mn2 FeNi5 G-CuAl10Ni AlBC3 C95500
Oilless Bronze Bushing ZCuSn12   G-CuSn12 CAC503B B30-92 PB2 JM3-15 Mid-load, low speed, Commonly used
C90800
Casted Bronze (high hard) ZCuZn25Al5 GCuZn25Al6 DIN1709 H5102 B30-92 HTB2 JM18-1 Over high load, low speed, High load used
Mn4Fe3 Fe3Mn3 G-CuZn25Al5 CAC304 C86300

solid lubricant are embedded

Maintenance-free slide bearings are

made of high-strength bronze