Project Description
Trusted Oilless Bearings services
Trusted & reliable Bronze Oilless Parts services
Trusted handyman services
A manufacturing consultant and engineer, supplies a broad range of standard bronze oilless parts and self-lubricating bushing, wear plates for for dry applications

Special Dimension Bearings And Custom Bearings
We offer a broad range of bearing types, from sleeve and flange to plate and thrust, solid and cast bronze bearing. Our bearings can be oil-impregnated, dry, or graphite-filled to meet a broad range of application requirements.
Viiplus can also supply special dimension bearings and custom bearings of all types including those with integral shafts that help reduce the tolerance buildup of mating components. Our engineers have designed custom bearings in a variety of configurations, special geometry, advanced lubrication, and high-tech materials.
Need Assistance Selecting The Proper Custom Bushings?
There is a growing demand for custom bearings with non-standard specifications. VIIPLUS always works with its customer to find a solution. We can supply plain bearings in a wide variety of materials, sizes, tolerances, and designs.
We offer a broad range of bronze alloy materials beyond our core powdered metal (SAE 841) and cast bronze (CA932 / SAE 660) products. A few of the other bronze alloys offered include high leaded tin bronze (CA 936 and 937), aluminum bronze (CA 614, 630, and 954), and manganese bronze (CA 863).
Our processes include boring (minimum .0937″) to turning (maximum 75″) to finished machined lengths up to 50″. We also provide milling, drilling, tapping, reaming, and centerless grinding, as well as special oils and dry and re-lubrication services.
If you need help in selecting the best products for your particular application, please remember that design engineering and application assistance are available from Viiplus as part of our value-added services designed to make your job easier.


Design of non-standard bearings
When the demand for multi-custom bearings is put forward, there is a lack of careful analysis, resulting in problems such as poor bearing performance, many failures, and short service life. To avoid similar situations, refer to the following four-step requirement process:
- Custom Parts – The Online Manufacturer. Bronze oilless flat plates have to be drilled from the backside and countersink on the sliding surface if it´s necessary to drill through a solid-lubricant depot.
- Providing custom-designed components including cutting, bending, punching, turning, etc. All your custom parts from one source at bronzeoilless.com – The Online Manufacturer. Oilless Bronze Parts Custom Engineering, focused on improving quality parts. Worldwide express shipping, short delivery times, and constantly free capacities. Large material selection. Free quote. Quick offers.
- We supply high volume international Original Equipment Manufacturers (OEMs) with our customized capabilities.
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We have worked with these popular materials (other materials available upon request).
C36000 Free Cutting Brass
C63000 Nickel-Aluminum Bronze
C67300 Silicon-Manganese Brass
C86300 Manganese Bronze
C92700 Tin Bronze
C93200 Tin Bronze
C95400 Aluminum Bronze
We Have Extensive Expertise In Grooving And Offer A Full Range Of Groove Styles
From simple straight and circular grooves to double loops and double-figure eights. Plain or graphite-filled grooves are available in a minimum I.D. of .190″ and a minimum length of .09375″.
Please contact us to learn more about how our bearings can benefit your business.
Precision CNC
High Quality
Factory Price
Fast Delivery
Customized
Circular
Straight
Team training
Double Loop
Straight & Circular
Figure 8
Double Figure 8
Style 11
Loop
Multiple Loop
Multiple Circular
Multiple Loop
Custom-made Bearings – Advanced Precision Machining
We can carry OEM production, either bearing or its components. Viiplus is a supplier of custom bearings with full technical services to support the most extreme environments. Whether it is modifying a standard product or a completely bespoke proposal, Viiplus can rely on decades of proven solutions with access to cutting-edge technology.
VIIPLUS manufactures a variety of bronze bearings, bushings, washers, wear plates, and other parts from a wide range of copper-based alloy castings and extrusions. Our machined bronze parts are used in:
Truck and automotive aftermarket parts, Pumps and compressors, Hydraulic cylinders, Agricultural, and construction equipment, Injecting molding machines, Winches, and hoists, Industrial equipment, and Valves

Standard Bushing VS custom bearings
Custom bearings let engineers design and use components tailor-made for their specific applications. Such bearings can have longer working lives or better resist corrosion, thanks to bearing material chosen to resist contaminants in an application’s working environment. This reduces replacement and maintenance costs. Custom bearings can be produced with greater load ratings than ‘standard’ selections. They can also be made smaller or lighter to make installation easier. And from a market perspective, they can capture the aftermarket replacement business for the OEM.
We are specialists in cutting lubrication grooves in virtually any pattern.
Common groove patterns available are figure eight, double figure eight, loop, double loop, circular, wick, or straight. Any of these grooves can be contained within the length of the part of breaking out the ends. Call us for assistance in determining which pattern is most appropriate for your application. Additional capabilities include milling, drilling, grinding, honing, broaching, and de-burring.
Send us a drawing or sample. Generally, we’ll have a price back to you within 24 hours.
Casting Method Of Copper Bushing
1. Sand casting
2. Special casting

Choose your Application
China Custom Bushing, Bronze Oilless Bearings for off-highway equipment. No Need for Complex Greasing System.
Finishing Parts Main Base Alloy
Performance. & Chemical Compositions |
CuZn25Al6FeMn3 High Brass |
CuZn25Al6FeMn3 Special Brass |
CuSn5Pb5Zn5 Tin Bronze |
CuAl10Ni aluminium bronze |
CuSn12 Tin bronze |
Cast Iron HT250 EB00 |
Cu% | 65 | 65 | 85 | 80 | 88 | |
Sn% | 5 | 12 | ||||
Pb% | 5 | |||||
Zn% | 25 | 25 | 5 | |||
Ni% | 5 | |||||
Al% | 6 | 6 | 10 | |||
Fe% | 5 | |||||
Mn% | 4 | 4 | ||||
Dengity g/cm 3 |
8.0 | 8.0 | 8.8 | 8.3 | 8.8 | 7.3 |
Hardness | >210 | >180 | >70 | >150 | >80 | >160 |
Tensile Strength | >750 | >550 | >200 | >500 | >360 | >250 |
Elongation | >12 | >12 | 15 | >10 | >8 | |
Coeicient of linear expansion |
1.9·10 -5 /℃ | 1.9·10 -5 /℃ | 1.8·10 -5 /℃ | 1.6·10 -5 /℃ | 1.8·10 -5 /℃ | 1.0·10 -5 /℃ |
Limit Temp. | 300~400 | 300~400 | 400 | 400 | 400 | 400 |
Max. Load N/mm 2 | 100 | 80 | 60 | 50 | 70 | 10 |
Max. Speed m/min | 15 | 15 | 10 | 20 | 10 | 15 |
Max. PV N/mm2·m/min | 200 | 200 | 200 | 200 | 200 | 40 |
400N/mm2 | <0.01 | <0.01 | <0.05 | <0.04 | <0.05 | <0.015 |
Friction of coe. Oil 0.03; Dry 0.16
Alloy International Code
Alloy International Code
Custom Size Options, machining bronze bushings and a supplier of solid bronze oilless bushes and plate delivered on time and on budget.
Oilless Bushing Alloy International Code
Chinese Code GB1776-87 |
International counterparts | Applications | |||
International ISO 1338 |
Japan Jis |
(USA) ASTM (UNS) |
German DIN |
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CuZn25AI6FeMn3 | CuZn25AI6FeMn3 | H5102 CAC304 |
B30-92 C86300 |
DIN1709 G-CuZn25A/2.0598 |
High-load, low speed, general use |
CuZn25AI6FeMn3 | CuZn25AI6FeMn3 | H3102 CAC304 |
B30-92 C86300 |
DIN1709 G-CuZn25A/2.0598 |
Super high load, low-speed, high duty |
CuAI10Fe3 | CuAI10Fe3 | H5114 CAC703 |
B30-92 95800 |
DIN1714 GB-CuAI10NI/2.1096 |
Medium load, medium-speed, general use |
CuSn5Pb5Zn5 | QSn5-5-5 | H5111 CAC406 |
B30-92 C83600 |
DIN1705 G-Cu5n5ZnPb/2.1096 |
Medium load, medium-speed |
DB5675-85 HT250 |
Fe250 | ASTM class40 |
low-load, low-speed |
Material That You Can Choose
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Solid Lubricant
Solid Lubricant | Features | Typical application |
SSL1(PTFE etc + Add) | Excellent resistance against chemical attacks and low friction. Temp limit 400℃ |
Suite for general machines and under atmosphere |
SL2(PTFE etc + Add2) | Lowest in friction and good of water lubrication,Temp.limit 300℃ |
Ship, hydraulic turbine, gas turbine etc. |