Products Description
PTFE lined self-lubricating bearing also called DU bushing, dry bushing, DU bearing, teflon bushing,PTFE coated bearing,SF-1 oilless bearing, PTFE liner metal polymer composite bearing and PTFE based plain bearing. This type of DU bush takes PTFE layer as sliding layer which makes products can perform very well under dry condition or oil condition.
Oilless self-lubricating, low noise, thin-walled design, small structure, and long-term wear resistance. It is a new type of
bearing that replaces the needle bearing, powder metal bearing and copper alloy bearing. Suitable for dry running with a low coefficient of friction,low wear rate, good sliding characteristics, the transfer film created will protect the mating metal
surface.Suitable for rotary and oscillating movement, high chemical resistance, lower absorption of water and reduced swelling.Also performs well with lubrication.
①. Improved energy efficiency with the low friction performance of PTFE-enriched overlay;
②. Extended service life with a high wear-resistant bronze layer;
③. Zero maintenance as self-lubricating bearings can operate dry without grease;
④. Greater reliability than bimetallic bearings by avoiding potential shaft/bearing seizure under boundary lubricated conditions and frequent stop/start operation;
⑤. Compact, lightweight designs with thin-wall bearing construction;
⑥. Reduced noise with no metal-to-metal contact between the bearing and the shaft;
⑦. Quick, simple assembly without expensive mounting tools.
Product Details
①. PTFE/Fiber mixture thickness 0.01~0.03mm, provides an excellent initial transfer film, which effectively coats the mating surfaces of the bearing assembly, forming an oxide type solid lubricant film.
②. Sintered bronze powder thickness 0.20-0.35mm,provides Max. thermal conductivity away from the bearing surface,also serves as a reservoir for the PTFE-Fiber
③. Low-carbon steel,gives exceptionally high load carrying capacity, excellent heat dissipation.
④. Copper/Tin plating thickness 0.002mm, provides good corrosion resistance.
Depending upon application requirements, SF-1 Series self lubricating bearing can be produced in many shapes like cylinderical, flanged, thrust washer, slide plate and customized etc, and sizes from inner diameters 6mm to more than 300mm. The type of loading applied to the bearing will determine which bearing shape is required.
Standard sized parts for a wide range of bearing products with basic dimensions (inner diameter, outer diameter, length, etc.)according to international standards are available. Special bearings with additional functionality can be produced to customer specifications and requirements.
Manufacturing technique process
1.unpack strips
2.sinter copper powder onto the strips
3.coat PTFE onto the stripe sintered copper powder
4.cut the strip into small pieces as per the size of bushings
5.forming : wrap up the small pieces into a cylinderical shape
6. chamfer: a cut made along an edge or on a corner so that it slopes rather than being at 90˚
7. Flanging: for flange bushing
8. polising: to make the surface of bushings smooth and shiny
9. pack up for delivery
Product packaging
Packaging & Delivery
Packaging Details:
Clear the bush
Wrapped the bush with plastic paper
Rolled d the bush with bubble wrap
Put bush into export cartons
Put 16 cartons into wooden case or wooden pallets
Port:
FOB shanghai/Ningbo/Guangzhou
Company Profile
Factory highlights:
Produce with high-end equipment; strong automatic production capacity; small tolerance of product wall thickness; high accuracy and advanced product formulation technology; acquired a number of national invention patents; operating condition simulation test can be carried out according to customers' needs; product quality, R&D. technology
are at the international advanced and domestic leading level.
FAQ
1. Q: Are you a factory or trading company?
A: We are professional factory and exporter with more than 25 years experience,we have professional
production teams, technical team, QC team and sales team.
2. Q: What is your main products?
A: DU Bush, DX Bush, Bimetal Bearing, Wrapped bronze bearing, Cast bronze bearing, Oilles bearing,
Oilles wear plates.
3. Q: How to get a sample?
A: For stocks, sample can be free of charge. If we need to make, it can be negotiated based on different
situation.
4. Q:What's your advantage?
(1) competitive price
(2) continuously stable high quality
(3) professional OEM manufacturer
(4) professional sales and technical team to understand your requirement very well
(5) perfect customer service. Reply your inquiry or email within 6 hours on working time and 12 hours
on weekends
(6) perfect package to protect your goods during long distance transportation
5. Q:What is your Minimum quantity?
A: Different type of bushes have different MOQ, pls contact us for details.
6. Q: What is your lead time?
Lead time depends on bush type and order quantity. Normally, our lead time is 20 days after receiving your
down payment. If the items you choose with stocks, we can delivery within 3 working days.
