Material Outside is Fe, inside is magnet. Magnet can be: Ferrite. Surface can be Zn, Ni, Cr, Epoxy, painting, Rubber cover etc. Application Hanging signs and lights  Booth construction, store construction, interior work +By Air: If the goods will be shipped by air, all the magnetic should be degaussed and we will use Iron sheet to shield. 1:How long will you give me the reply?  2:How about the quality of the magnets? 3:How is the price? 4:Could I get samples?  5:How long will you deliver sample and bulk order? 6. How to pay you?
The full ceramic ball bearings listed below are supplied with rings and balls made from zirconium dioxide (ZrO2). These zirconia bearings are available as full complement (no cage) or with cages made from PTFE, PEEK or 316 stainless steel.
These are non magnetic, non-conductive and highly corrosion resistant to most chemicals although ZrO2 bearings are not recommended for prolonged contact with steam. Full complement bearings or those with a 316 stainless cage can be used up to 400°C while bearings with a PEEK or PTFE cage can cope with temperatures of up to 250°C. For temperatures below -70°C, PTFE or 316 stainless steel cages are preferred. Standard radial clearance for full ceramic bearings is C0 but other clearances can be supplied to order.
ZrO2 ceramic bearings are generally used for their extreme temperature capabilities, excellent corrosion resistance or non-magnetic properties. Other sizes can be supplied on request.
The Description of Ceramic Bearings: Cermic Ball Bearing,Full Ceramic Bearing,Hybrid Ceramic Bearing,Self-Aligning Full Ceramic Ball Bearing Shijiazhuang Longshu Mechanical & Electrical Equipment Trading Co., Ltd. , https://www.longsbearing.com
Fastening antennas
Holding tarps
Making retrieval tools
Holding through non-ferrous materials
Use for fastening or holding steel doors
Insertion into molds
Insertion into fixtures
For car roof signs
 
Â
Bath and kitchen design
Cabinetry, furniture construction
Metal construction
Machine and plant construction
Lighting industry
Packing
+By Sea:Â If the goods are will be shipped by sea, we will place a pallet on the bottom of cartons.
Â
we will reply you in 24Â hours.
We have the certification of ISO, SGS, ROHS.
As we believe the quality is the most important, we will provide the high quality magnet with reasonable price.
Yes, we have materials in stock to help you to get the samples as soon as we can.
If we have materials in our stock, we can send them within 3 days. If we don't have material in stock, production time for sample is 5-10 days, 15-25 days for bulk order.
T/T, Western Union, L/C, Paypal.
Welcome to contact us!
Â
Compared to steel, Ceramic ball Bearings have many specific advantages. They offer superior corrosion and heat resistance, higher dimensional stability, and lower density, which facilitate high speed. Ceramics are superior to steel in heat and corrosion resistance, and are lightweight and extremely hard as well. Consequently, ceramic rolling bearings can be used in environments where conventional steel bearings cannot. That is to say, the superiority of these bearings makes it possible that they can be applied in some special environments.
Firstly, they can be used in corrosive environments. Compared to stainless steel bearings, hybrid and all Ceramic Bearing lasted three and twenty times longer respectively. It is presumed that water readily adheres to silicon nitride and forms a better lubrication film, leading to extended bearing life.
Secondly, they can be performed in corrosive agents. Generally, silicon nitride has excellent corrosion resistance. However, corrosion resistance varies depending on the type and quantity of sintering additives, and certain corrosive agents decrease in hardness and flexural strength. In such situation, it is can be proved that the carbide-based ceramic bearings are the most effective.
Thirdly, they can be used in high-temperature vacuum. An all-silicon nitride Ball Bearing with a self-lubricating laminated cage (mainly composed of MoS2) and with MoS2-coated rings and balls proved superior in durability in a high-temperature vacuum environment. Compared with the hybrid bearings, the all-ceramic bearing was superior in both dynamic frictional torque and life.
Fourthly, they can be performed with poor lubrication. As ceramics are extremely hard and have outstanding wear resistance, they outperform other materials in bearing life without lubrication. According to a test, the steel bearing seized within a short period while the hybrid and all 627 Ceramic Bearings, though sustaining wear, did not. And the all-ceramic bearing sustained considerably less wear than the hybrid bearing, indicating that its endurance life is much longer.
Ferrite Magnetic Pot Composite Ceramic Cup Magnet
Model NO.: Ferrite magnetic pot composite ceramic cup magnet
Hole: M3-M10
Trademark: YYMAG
Transport Package: Shielding Packing/Common Packing
Specification: 100pcs/carton; Carton size: 33x24x15cm
Origin: China
HS Code: 85051190
Ferrite magnetic pot composite ceramic cup magnet
These cup magnets can be fastened with a screw; used as round base, providing really strong magnetic adhesive force when contacting with a thick iron surface.
Â
This kind pot magnet is a common but widely used product, customers' specifications like red painted, mirror polish, with rubber cap, with knob, etc. can be fulfilled.