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ROHS compliant straight steel PTFE (Polytetrafluoroethylene) sleeve bushings with flanged bearings and lead-free washers are designed for applications requiring high chemical resistance, low friction, and environmental compliance. These bushings feature a steel outer shell for durability and a PTFE lining for smooth operation. The lead-free washers ensure compliance with environmental regulations and provide a secure fit.
The LBM (Loose-to-Bore Match) tolerance specification refers to the clearance or interference between the bushing's inner diameter and the mating shaft or bore. This tolerance ensures proper installation and function while minimizing wear and friction. The specific LBM tolerance values depend on the size and series of the bushing, and should be referenced in the manufacturer's specifications or catalog.
The flanged design of these bushings allows for easy installation and secure positioning within the application. The PTFE lining provides excellent chemical resistance and low friction properties, ensuring smooth and consistent operation.
Please note that the exact tolerance values and technical specifications may vary depending on the manufacturer and specific application requirements. It is important to consult the manufacturer's catalog or specifications for detailed information on the LBM tolerance and other relevant parameters.
Composite dry sliding bearings– maintenance-free and space-saving,Plain bushings PTFE composite metric size PCM B Bore diameter 3 mm – 300 mm Self lubricating bearings –200 to +250 °C,inch size bushing also available: PCZ .. B 0,125 – 7 inch size oilless bushing made to order from china.
...more than 50 pcs. available
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1. Inner dimension
2. Outer dimension
3. Length
The PTFE composite bushing belongs to the family of coated or split bushes. It is produced according to a DIN standard, which means that ID and OD and their tolerances are set in an international standard. The bushings are manufactured from a plate material, which consists of a support material, in this case steel. It is coated with PTFE in a sintering furnace using bronze powder as the bonding agent between PTFE and steel. Sintered bronze plays a very important role for this material, as without it, PTFE would easily detach from the support material.
Steel Back + Porous Bronze Sinter + PTFE + Lead
■Lubrication-free
■Corrosion resistance
■Resistant to dust and dirt
■Small friction coefficient
Sliding surface: | PTFE |
Support material: | Tin plated steel |
Dynamic load: | ≤ 140 N/mm² |
Static load: | ≤ 250 N/mm² |
Sliding speed: | ≤ 2,5 m/s |
Fricition value: | 0,03 - 0,25 µ |
max. PV-value: | 1,8 N/mm² x m/s |
Temperature strain: | -200 up to +280 °C |
Maintenance: | maintenance-free |
Shaft material: | Steel, hardened or untempered, roughness Rz < 2-3 |
Sliding surface: | PTFE |
Support material: | Tin plated steel |
Dynamic load: | ≤ 140 N/mm² |
Static load: | ≤ 250 N/mm² |
Sliding speed: | ≤ 2,5 m/s |
Fricition value: | 0,03 - 0,25 µ |
max. PV-value: | 1,8 N/mm² x m/s |
Temperature strain: | -200 up to +280 °C |
Maintenance: | maintenance-free |
Tolerance housing: | H7 |
Tolerance after mounting: | H9 |
Shaft tolerance: | f7 or f8 |
Shaft material: | Steel, hardened or untempered, roughness Rz < 2-3 |
The important characteristics of dry sliding bearings
composite bushes include
• freedom from maintenance
• no lubrication required
(PTFE composite)
• initial lubrication required
(POM composite)
• minimum wall thickness, minimum
space requirements
• can support heavy loads
• wide operating temperature range
• good sliding properties
• practically without stick-slip
• little wear
• insensitive to edge loads
(POM composite)
• no machining required
Among the many different types of bronze bushing manufacturers, if you want to choose a professional, reliable and trustworthy manufacturer, you must understand the production and processing strength and production and processing technology guarantees of different manufacturers, especially through comparison and judgment through various factors. Choose a few more manufacturers for rational comparison, so as to narrow the selection range and avoid blindly selecting manufacturers and affecting the quality and function of production and processing.
1. Compare the manufacturer's service situation
To select a bronze bushing manufacturer, in addition to considering the manufacturer’s production and processing technology level, it is also necessary to determine the manufacturer’s specific service situation and understand the manufacturer’s production mode and service standards to determine whether the manufacturer is worthy of cooperation.
2. Determine the quality of processing and production
If you want to choose a professional, reliable and trustworthy bronze bushing manufacturer, it is recommended that you not only need to understand the manufacturer’s production and processing scale, but also determine whether the manufacturer’s production and processing technology is mature and whether it has a complete production and processing line. In terms of after-sales service guarantee Whether they are comprehensive, these various issues must be rationally considered and compared.
3. Understand the manufacturer's production scale
If you want to know which manufacturer is trustworthy, you can understand the professional production level by comparing the situation of different manufacturers. It has a good production advantage in the production and processing process. By determining the manufacturer's production scale and service guarantee, you can understand the specific situation of the copper sleeve manufacturer.
Bushings
Flanged bushings
Thrust washers
Self-lubricating Bearing strip
Composite Self-Lubricating Bushings / Plain Bearings Housing & Shaft Bushes Tolerance
VIIPLUS CHINA BEARINGS produces only Self-lubricating Bearings for a variety of applications, giving our customers solutions advantages over other bearings.
QUALITY / ISO 9001 Oilless Resin Sliding Materials Manufacture Standard Components for Sliding Bearings Material
Tolerances Bushing Products Size
Bushings are selected based on the velocity and the applied load. Maintenance-free bushings do not require additional lubrication to operate.
Bushing Bearings offers a variety of metal bushings including brass bushings, steel bushing, & bronze bushings.
If you already know which type of metal bushing is right for your application, you can quickly navigate to it below for more information:
Description:OILLESS BEARINGS INDUSTRY Glide bearing is a self-lubricating bearing material that consists of a high-quality bearing bronze with pockets filled with solid lubricant and a thin film of solid lubricant over the bearing surface to aid the running-in process. Viiplus self lubricating bearings maintenance
Self-lubricating bushings strip plate sheet offer very good wear and low friction performance over a wide range of loads, speeds and temperatures in dry running conditions ...
Get access to VIIPLUS bearing drawings Ask for a quote Start your project With an Application Engineer.
Technical Data - Metric Steel Back + Porous Bronze Sinter + PTFE + Lead
Special productions made from VIIPLUS strips are manufactured using precision cutting and sheet metal working. A wide range of different shapes and dimensions can be manufactured from VIIPLUSmaterials, for example:
thrust washers in special dimensions
thrust washers with complex geometries
thrust washers with any inside diameter and any outside diameter up to 230 mm
thrust washers in other designs such as counterbores, notches or lugs
half-washers and washer segments
strip cuts
other strip designs, e.g. with notches or groove
slide path coverings
Special productions made from VIIPLUS strips are used in hydraulic applications and compressors, for example.
bent parts, e.g. angles, half-shells, U-profiles, rails
bearing shells
spherical sliding elements
half-shells with side elements (welding ensures firm substance-to-substance bond)
drawing parts, customer-specific components
small lot sizes can be manufactured
high material output
no tool costs
high degree of flexibility, e.g. products can be manufactured quickly
no elastic deformation
intricate contours can be created
neat cut edges which often do not need to be remachined