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
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Precision Oilless Bearing
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.
Your Partner for Standard and special bearings for all Oilless Bearing.
Low Friction Bearings – High Performance Technology
- Precision Bearing – Leading Bearings Manufacturer
With the widest assortment available, you get a choice of bearings to suit your specific performance need. We also offer bearing customization and global access to our application knowledge as well as service centers in 15 countries spread around the world.
Precision manufacturing Bushes
We provide the latest in machine tool technology to fuel your competitive advantage—from simple to complex and from prototype through to production.
Whether your needs are a fast turnaround of prototype components or higher volume product runs, VIIPLUS can help craft a solution. We are a company that prides itself on value, consistent quality, and on-time delivery performance along with our technical abilities in providing complex, close tolerance machining operations.
Super-precision bearings
With high running accuracy, high-speed performance, and high system rigidity, Viiplus super-precision bearings are ideal for machine tools and other precision applications such as rolling mills, racing cars, and marine vessels. The bearings also minimize noise, vibration, and heat generation.
Our focus reflects a commitment to machining excellence, and we strive to deploy the latest technologies to meet the highest standards of any industry requiring precision machined components, including customers in the aerospace, aircraft, medical, and precision manufacturing industries.
Basic Advantages of Oilless Bearings
Basic Advantages of Oilless Bearings and Where to Get Them
In the industrial world, there are various types of bearings to choose from. The application or machinery that you are running, will dictate what bearing you purchase. Oilless bearings are manufactured from a material that incorporates its own lubrication in the form of powdered graphite. These types of bearings are also known as self-lubricating bearings. As a result, there is no oil or external lubricant required for these bearings to operate at their best.
Where to Get Them
If you are looking for a range of oilless bearings that simply will not let you down, then Viiplus has just what you need. Take the time to chat to one of our knowledgeable consultants about our range of bearings and soon you will be provided with a product that perfectly manages the task at hand. At Viiplus, we are pioneers of technology and want nothing more than to provide you with a product and service that is effective and offers value for money.
- There is little to no extra lubrication required 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.
Choose your Application
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 | ||
| 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 | ||
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. |
Reduce costs with OILLESS BEARING PARTS
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Provides services and quality bronze oilless products to provide you with the best possible solutions for your needs at any time.
Focus on reducing or eliminating friction, wear and lubrication bronze oilless parts
Manufacturers of maintenance-free sliding elements
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