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
Designs a growing, market-leading portfolio of Oilless bearings
We help engineer the next generation of machinery and equipment through customer-centric innovation and application knowledge. Our expertise spans both established and emerging global industries — from food production and transportation to automation and renewable energy.

Quality and Innovation
Application Scenarios
Intelligent Mechanical Support
High Quality Guarantee
Open 24/7

Bearing Design | Size & Material
The oilless bearing design may be simple or complex. It may amount to picking a bearing from a catalog on the basis of PV factor or may require a sophisticated analysis of lubricant flow.
Most slow-moving or self-lubricated bearings are boundary lubricated. These are generally simple cylinders or flat washers. Grooves may be added to feed lubricant to load-bearing surfaces in boundary-lubricated bearings. Design variables are material, lubricant, and bearing size. Lubricant and material determine the load limit. Size is based on keeping within the lubricant/material limitations.

Production Technology
Due to the heavy equipment, high ambient temperature, large dust or acidic corrosive gases CO, sulfur dioxide, etc. in the air, it brings many problems to the lubrication of equipment. For this reason, the research on inlaid self-lubricating composite materials has With its own characteristics, it is composed of a metal substrate and a solid lubricant paste embedded in the holes or grooves of the substrate. During the friction process, the metal substrate bears most of the load. After friction, the solid lubricant in the hole or groove is transferred or reversely transferred to the friction surface, and a solid transfer film with good lubrication, firm adhesion and uniform coverage is formed on the friction surface, which greatly reduces friction and wears. As the friction progresses, the embedded solid lubricant is continuously supplied to the friction surface, ensuring good lubrication during long-term operation.
Design considerations
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Axial displacement
Insert bearings are not intended to accommodate axial displacement of the shaft relative to the housing. The distance between bearing positions should therefore be short to avoid excessive induced axial loads as a result of thermal expansion of the shaft.
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Shaft tolerances

Find out more about the unique benefits of oilless bearing
Advantages at a glance
The shape of bearings can vary greatly, with characteristics such as flange, ball, and plate being customized to enhance the overall performance of the application.
Maintenance free and self-lubricating
Sizing and reaming capability
Space saving and weight reduction of the whole parts

Cylindrical Bearing
Competitive price, On-time delivery, Professional supplier, High quality. Large stock. One-stop bearing provider in China.
Flanged Bearing
We help you quickly find industrial parts, specifications, and services. Search Thousands of Catalogs for Flanged Bearing.
Wear Plate
Premium wear plate for die makers, mold makers, and metal stampers. In-stock and fast shipping! Shop Online. Request A Quote. Check Resources.
Wear Strips
Search Conveyor Wear Strips and Find What You Want at bronzeoilless.com. Explore Conveyor Wear Strips Related to Your Search and Learn More Now.
Thrust Washer
Choose from our selection of Self-Lubricating Washer, including cast bronze washers, oilless graphite thrust washers and more. Inquiry! Shop Now or Request a Quote!
Sliding Plate
Shop at VIIPLUS for all your Oil-Free Slide Plates needs. We offer free CAD download, short lead times, and competitive pricing, Quote and order online today!
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
We’re here to help
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