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.

cast bronze groove bushing

Quality and Innovation

ISO 9001:2015 Certified
Extreme Stable and Durable

Application Scenarios

Intelligent Mechanical Support
High Quality Guarantee

Open 24/7

100% Quality Guaranteed
Worldwide On-time Shipping
bushing type

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.

oil free bearing product

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

  • 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.

  • Shaft tolerances

bronze round flange bushings

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

graphite bushes

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 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

& Chemical Compositions
High Brass
Special Brass
Tin Bronze
aluminium bronze
Tin bronze
Cast Iron HT250
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
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

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
International counterparts Applications
ISO 1338
CuZn25AI6FeMn3 CuZn25AI6FeMn3 H5102
High-load, low speed, general use
CuZn25AI6FeMn3 CuZn25AI6FeMn3 H3102
Super high load, low-speed, high
CuAI10Fe3 CuAI10Fe3 H5114
Medium load, medium-speed,
general use
CuSn5Pb5Zn5 QSn5-5-5 H5111
Medium load, medium-speed
Fe250 ASTM
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
SL2(PTFE etc + Add2) Lowest in friction and good of water
lubrication,Temp.limit 300℃
Ship, hydraulic turbine, gas turbine etc.


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